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1. general description the tda18271hd is a silicon tuner ic designed mainly for terrestrial analog and digital tv reception. the tda18271hd integrates the overall tuning function, including selectivity. the tda18271hd is compatible with all analog and digital tv standards and delivers a low if signal to a demodulator (for analog tv) and/or channel decoder (for digital tv). this speci?cation is based on software version 3.4. 2. features n fully integrated rf tracking ?lters for unwanted signal suppression n fully integrated if selectivity (no need for external saw ?lters) n worldwide multistandard terrestrial (all analog and digital worldwide terrestrial standards supported) n integrated loop-through and slave tuner output for straightforward multi-silicon tuner application n fully integrated oscillators with no external components n alignment free n integrated wide-band gain control n single 3.3 v power supply n low power consumption n crystal oscillator output buffer (16 mhz) for single crystal applications n i 2 c-bus interface compatible with 3.3 v and 5 v microcontrollers n three standby modes n rohs packaging 3. applications 3.1 target applications n hybrid (analog and digital tv) for pctv, dvd-r and tv applications n application optimization is described in application notes an602 , an604 and an605 tda18271hd silicon tuner ic rev. 03 11 september 2008 product data sheet
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 2 of 69 nxp semiconductors tda18271hd silicon tuner ic 3.2 key bene?ts n the tda18271hd is a silicon tuner targeting digital and analog tv applications. the aim is to match the performance of conventional can tuners while reducing the size of the tuner function. additionally, the following bene?ts are provided: u easy on-board integration u easy dual tuner con?guration u drastic size reduction of the tuner function and power consumption 4. quick reference data [1] measured with tda10048hn channel decoder. [2] measured with tda8295 if modulator. 5. ordering information table 1. quick reference data symbol parameter conditions min typ max unit f rf(sto) rf frequency on pin sto slave tuner output 45 - 864 mhz nf tun tuner noise ?gure maximum gain - 5.5 - db j n phase noise 1 khz and 10 khz - - 89 - dbc/hz p power dissipation - 780 - mw v i(max) maximum input voltage 1 db gain compression, one analog tv signal at rf input ( - 5 dbm) - 103 - db m v a image image rejection - 65 - db s dig digital sensitivity dvb-t (64 qam 2 3 ); ber = 2.10 - 4 [1] - - 82 - dbm s a analog sensitivity 50 db video snr weighted 22 db m v (color loss) [2] -58-db m v table 2. ordering information type number package name description version tda18271hd/c2 hlqfn64r plastic thermal enhanced low pro?le quad ?at package; no leads; 64 terminals; resin based; body 9 9 1.6 mm sot903-1
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 3 of 69 nxp semiconductors tda18271hd silicon tuner ic 6. block diagram fig 1. block diagram 001aag453 agc control attenuators tda18271hd test signal generator calibration synthesizer main synthesizer dual tuner protocol divider crystal oscillator dc-to-dc converter digital circuitry lc tracking filters rf polyphase filter if polyphase filter if low-pass filter vt_cal cp_cal xtalp cp_lo xtaln vt_fine vt_coarse rf agc if agc ifoutn ifoutp v_ifagc 45 freeze 28 mastersync 19 46 47 agc vco lna agc1 agc2 rf_in 10 13 15 control interface scl as sda 38 32 39 35 34 26 22 27 24 21 lt 8 fm_in sto mixer
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 4 of 69 nxp semiconductors tda18271hd silicon tuner ic 7. pinning information 7.1 pinning 7.2 pin description fig 2. pin con?guration tda18271hd 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 gnd v_ifagc ifoutp ifoutn vcc gnd capreg28 gnd capreg18 sda scl gnd gnd vt_cal cp_cal vcc gnd gnd gnd gnd gnd gnd gnd fm_in vcc rf_in gnd caprfagc lt gnd sto vcc capregvco vcc mastersync capfiltvco vt_coarse vt_fine gnd cp_lo gnd xtalp xtaln freeze xtout_ms xtoutp xtoutn as gnd gnd gnd gnd gnd gnd gnd gnd gnd gnd gnd gnd capregfiltrf vsync gnd gnd 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 transparent top view terminal 1 index area 001aag454 table 3. pin description symbol pin description gnd 1 to 7 ground fm_in 8 unbalanced fm input vcc 9 3.3 v supply voltage rf_in 10 unbalanced rf (tv) input gnd 11 ground caprfagc 12 rf agc ?ltering
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 5 of 69 nxp semiconductors tda18271hd silicon tuner ic lt 13 loop-through output gnd 14 ground sto 15 slave tuner output vcc 16 3.3 v supply voltage capregvco 17 vco supply decoupling vcc 18 3.3 v supply voltage mastersync 19 synchronization signal for dual tuner applications; leave open for single tuner applications capfiltvco 20 vco reference decoupling vt_coarse 21 lo tuning voltage input vt_fine 22 lo tuning voltage input gnd 23 ground cp_lo 24 charge pump of the local synthesizer gnd 25 ground xtalp 26 crystal oscillator input xtaln 27 crystal oscillator input freeze 28 synchronization signal for multi tuner applications; leave open for single tuner applications xtout_ms 29 xtout mode and master/slave selection xtoutp 30 crystal oscillator output buffer xtoutn 31 crystal oscillator output buffer as 32 i 2 c-bus address selection input vcc 33 3.3 v supply voltage cp_cal 34 charge pump of the calibration synthesizer vt_cal 35 tuning voltage of the calibration synthesizer gnd 36, 37 ground scl 38 i 2 c-bus clock input sda 39 i 2 c-bus data input/output capreg18 40 internal regulator decoupling gnd 41 ground capreg28 42 internal regulator decoupling gnd 43 ground vcc 44 3.3 v supply voltage ifoutn 45 if output ifoutp 46 if output v_ifagc 47 if gain control input gnd 48 to 50 ground vsync 51 vertical synchronization input for analog applications; connect to ground for digital applications capregfiltrf 52 internal regulator decoupling gnd 53 to 64 ground gnd exposed die ground table 3. pin description continued symbol pin description
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 6 of 69 nxp semiconductors tda18271hd silicon tuner ic 8. functional description the rf input signal is driven to a low-noise ampli?er. it is then band-pass ?ltered, ampli?ed and fed to the image rejection mixer. the mixer downconverts the rf signal to a low if depending on the channel bandwidth. standard if ?lters are implemented for 1.5 mhz, 6 mhz, 7 mhz and 8 mhz channel bandwidths; see t ab le 43 . the silicon tuner can be used either as tv receiver or fm radio receiver. the tda18271hd requires a single 16 mhz crystal for clock generation. when bit xtout_on = 1, a clock signal is available on pins xtoutp and xtoutn to drive a second tuner, a channel decoder or an if demodulator (tda8295) for analog tv reception and fm radio. remark: most recent video decoders from nxp semiconductors include a low if demodulation function. 8.1 tv and fm reception the silicon tuner can be used in two modes, selectable via the i 2 c-bus: ? tv reception: the rf signal must be connected to pin rf_in ? fm reception: the rf signal must be connected to pin fm_in or rf_in the rf_in input pin can also be used for fm reception at the cost of software modi?cation. the fm_in input pin can only receive signals in the fm frequency range. 8.2 master and slave operation the tda18271hd allows easy dual-tuner con?guration. each individual tuner has to be set either to master mode or slave mode by applying a speci?c dc voltage to the xtout_ms pin; see t ab le 4 . this will decide whether the crystal oscillator part is used as negative impedance connected to the crystal part or as a current buffer. in dual tuner applications: ? the ?rst tuner is set to master mode ? the second tuner has to be set to slave mode in single tuner applications: ? the tuner must be set to master mode table 4. master/slave selection voltage on pin xtout_ms tuner type crystal oscillator function 0 v to 0.1v cc master negative impedance presented to the crystal 0.4v cc to 0.6v cc slave current input buffer
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 7 of 69 nxp semiconductors tda18271hd silicon tuner ic 8.3 tuner outputs the tuner provides a slave tuner output (pin sto) and a loop-through output (pin lt). these outputs are used to transmit the antenna signal to other tuners. each output has its own characteristics (see t ab le 58 and t ab le 59 ). 8.3.1 loop-through output the gain between the antenna connector and the loop-through pin (pin lt) equals 0 db. this pin can be connected to any consumer electronic equipment. 8.3.2 slave tuner output in dual tuner applications the slave tuner output (pin sto) must be connected to the rf input of the slave tuner tda18271hd. the gain between the antenna connector and the slave tuner output can change according to the input level. the slave tuner will automatically compensate for the gain change, using the mastersync and freeze signals. 8.4 crystal input mode the tda18271hd requires a 16 mhz crystal reference. the chosen crystal must withstand at least 100 m w drive level and an additional shunt capacitor with a typical value of 5.6 pf as shown in figure 1 is also needed. the quartz references for which the performances are guaranteed are: ? ndk nx5032 ? siward sx-5032 ? txc 9c series ? chungho elcom hc49s pro?le clock reference: ? in master mode, the clock reference must be provided by a 16 mhz crystal connected between pins xtalp and xtaln of the master tuner ? in slave mode, the clock reference must be provided by pins xtoutp and xtoutn of the tuner in master mode to pins xtalp and xtaln of the tuner in slave mode 8.5 crystal output mode pins xtoutp and xtoutn deliver a symmetrical sine waveform to drive the channel decoder and/or if demodulator. the load on these outputs should be made similar to ensure optimum performances. if only one crystal output is used, the unused output should be loaded by an equivalent capacitance.
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 8 of 69 nxp semiconductors tda18271hd silicon tuner ic 9. control interface 9.1 i 2 c-bus format, write/read mode remark: the i 2 c-bus read in the tda18271hd must read the entire i 2 c-bus map, with required subaddress 00h. the number of bytes read is 16, or 39 in extended register mode; see t ab le 7 . reading write-only bits can return values that are different from the programmed values.
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 9 of 69 nxp semiconductors tda18271hd silicon tuner ic table 5. i 2 c-bus format name byte name sub address bit 7 6 5 4 3 2 1 0 address byte 1 - - 11000 ma[1:0] r/w address byte 2 - - 0 0 ad[5:0] id byte id 00h 1 id[6:0] thermo byte tm 01h por lock tm_range tm_on tm_d[3:0] power level byte pl 02h power_level[7:0] easy prog byte 1 ep1 03h power_ level[8] dis_ power_ level 0 rf_cal_ok ir_cal_ok bp_filter[2:0] easy prog byte 2 ep2 04h rf_band[2:0] gain_taper[4:0] easy prog byte 3 ep3 05h sm sm_lt sm_xt agck_mode[1:0] std[2:0] easy prog byte 4 ep4 06h fm_rfn xtout_on 1 if_level[2:0] cal_mode[1:0] easy prog byte 5 ep5 07h extended _reg ir_gstep[2:0] 0 ir_meas[2:0] cal post-divider byte cpd 08h cal_post_div[7:0] cal divider byte 1 cd1 09h 0 cal_div[22:16] cal divider byte 2 cd2 0ah cal_div[15:8] cal divider byte 3 cd3 0bh cal_div[7:0] main post-divider byte mpd 0ch if_notch main_post_div[6:0] main divider byte 1 md1 0dh 0 main_div[22:16] main divider byte 2 md2 0eh main_div[15:8] main divider byte 3 md3 0fh main_div[7:0] extended byte 1 eb1 10h eb1[7:3] calvco_ forlon agc1_ always_ mastern agc1_ firstn extended byte 2 eb2 11h eb2[7:0] extended byte 3 eb3 12h eb3[7:0] extended byte 4 eb4 13h eb4[7:6] lo_force srce eb4[4:0] extended byte 5 eb5 14h eb5[7:0] extended byte 6 eb6 15h eb6[7:0]
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 10 of 69 nxp semiconductors tda18271hd silicon tuner ic extended byte 7 eb7 16h eb7[7:6] cal_ force srce eb7[4:0] extended byte 8 eb8 17h cid_alarm eb8[6:4] eb8[3] eb8[2:0] extended byte 9 eb9 18h eb9[7:0] extended byte 10 eb10 19h eb10[7:6] cid_gain[5:0] extended byte 11 eb11 1ah eb11[7:0] extended byte 12 eb12 1bh eb12[7:6] pd_agc1_ det pd_agc2_ det eb12[3:0] extended byte 13 eb13 1ch eb13[7] rfc_k[2:0] rfc_m[1:0] eb13[1:0] extended byte 14 eb14 1dh rfc_cprog[7:0] extended byte 15 eb15 1eh eb15[7:4] eb15[3:0] extended byte 16 eb16 1fh eb16[7:0] extended byte 17 eb17 20h eb17[7:0] extended byte 18 eb18 21h agc1_ loop_off eb18[6:2] agc1_gain[1:0] extended byte 19 eb19 22h eb19[7:0] extended byte 20 eb20 23h eb20[7:6] force_ lock eb20[4:0] extended byte 21 eb21 24h agc2_ loop_off eb21[6:2] agc2_gain[1:0] extended byte 22 eb22 25h eb22[7] rf_top[2:0] if_top[3:0] extended byte 23 eb23 26h eb23[7:3] forcelp_ fc2_en lp_fc eb23[0] table 5. i 2 c-bus format continued name byte name sub address bit 7 6 5 4 3 2 1 0
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 11 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.2 i 2 c-bus at power-on reset table 6. i 2 c-bus at power-on reset name byte subaddress 7 [1] 6 [1] 5 [1] 4 [1] 3 [1] 2 [1] 1 [1] 0 [1] address byte 1 - - 1 1 0 0 0 ma[1] ma[0] x address byte 2 - - x x ad[5] ad[4] ad[3] ad[2] ad[1] ad[0] id byte id 00h 1 0 0 0 0 1 0 0 thermo byte tm 01h 1 0 0 0 x x x x power level byte pl 02h x x x x x x x x easy prog byte 1 ep1 03h x 1 0 0 0 1 1 0 easy prog byte 2 ep2 04h 1 1 0 1 1 1 1 1 easy prog byte 3 ep3 05h 1 0 0 1 0 0 1 0 easy prog byte 4 ep4 06h 0 1 1 0 0 0 0 0 easy prog byte 5 ep5 07h 0 0 1 1 0 0 0 0 cal post-divider byte cpd 08h 0 0 0 0 0 0 0 0 cal divider byte 1 cd1 09h 0 0 0 0 0 0 0 0 cal divider byte 2 cd2 0ah 0 0 0 0 0 0 0 0 cal divider byte 3 cd3 0bh 0 0 0 0 0 0 0 0 main post-divider byte mpd 0ch 0 0 0 0 0 0 0 0 main divider byte 1 md1 0dh 0 0 0 0 0 0 0 0 main divider byte 2 md2 0eh 0 0 0 0 0 0 0 0 main divider byte 3 md3 0fh 0 0 0 0 0 0 0 0 extended byte 1 eb1 10h 1 1 1 1 1 1 1 1 extended byte 2 eb2 11h 0 0 0 0 0 0 0 1 extended byte 3 eb3 12h 1 0 0 0 0 1 0 0 extended byte 4 eb4 13h 0 1 0 0 0 0 0 1 extended byte 5 eb5 14h 0 0 0 0 0 0 0 1 extended byte 6 eb6 15h 1 0 0 0 0 1 0 0 extended byte 7 eb7 16h 0 1 0 0 1 0 0 0 extended byte 8 eb8 17h 0 1 1 1 x 1 0 1 extended byte 9 eb9 18h 0 0 0 0 0 0 0 0 extended byte 10 eb10 19h x x x x x x x x extended byte 11 eb11 1ah 1 0 0 0 0 1 1 0 extended byte 12 eb12 1bh 0 0 0 0 0 1 1 1 extended byte 13 eb13 1ch 1 1 0 0 0 0 1 0 extended byte 14 eb14 1dh 0 0 0 0 0 0 0 0 extended byte 15 eb15 1eh 1 0 0 0 x x x x extended byte 16 eb16 1fh 0 0 0 x x x 0 0 extended byte 17 eb17 20h 0 0 0 x x x x x extended byte 18 eb18 21h 0 0 0 0 0 0 0 0 extended byte 19 eb19 22h 0 0 0 x x x 0 0 extended byte 20 eb20 23h 1 0 0 x x x x x
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 12 of 69 nxp semiconductors tda18271hd silicon tuner ic [1] x indicates a bit not changed on reset. 9.3 description of symbols used in i 2 c-bus format table extended byte 21 eb21 24h 0 0 1 1 0 0 1 1 extended byte 22 eb22 25h 0 1 0 0 1 0 0 0 extended byte 23 eb23 26h 1 0 1 1 0 0 0 0 table 6. i 2 c-bus at power-on reset continued name byte subaddress 7 [1] 6 [1] 5 [1] 4 [1] 3 [1] 2 [1] 1 [1] 0 [1] table 7. i 2 c-bus register bits explanation address byte symbol description reference ma[1:0] programmable address bits t ab le 8 ad[5:0] programmable address bits of the ?rst programming byte t ab le 9 data bytes 00h id id[6:0] chip identi?cation number t ab le 10 01h tm por power-on reset bit t ab le 11 lock indicates that the main synthesizer is locked to the programmed frequency tm_range range selection bit for the internal die sensor tm_on enables die temperature measurement tm_d[3:0] data from die temperature measurement (read only) 02h pl power_level[7:0] power level indicator value (read only) t ab le 12 03h ep1 power_level[8] dis_power_level disables the power-on level function t ab le 13 rf_cal_ok indicates that the rf tracking ?lter calibration procedure has been successful ir_cal_ok indicates that the complete image rejection calibration procedure has been successful bp_filter[2:0] rf band-pass ?lter selection 04h ep2 rf_band[2:0] rf tracking ?lter band selection t ab le 14 gain_taper[4:0] gain taper value 05h ep3 sm sleep mode, standby modes t ab le 15 sm_lt sm_xt agck_mode[1:0] de?nes the standard std[2:0] de?nes the standard 06h ep4 fm_rfn selects which input is fed to rf ?lter t ab le 18 xtout_on provides the 16 mhz crystal reference on the xtoutp and xtoutn pins if_level[2:0] if output level selection cal_mode[1:0] calibration mode selection 07h ep5 extended_reg enables the extended register addressing t ab le 19 ir_gstep[2:0] gain step for image rejection calibration ir_meas[2:0] image rejection measurement frequency range
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 13 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.3.1 i 2 c-bus address selection the programmable module address bits ma[1:0] allow up to four tuners to be addressed in one system. bits ma1 and ma0 are programmed by a speci?c voltage (v as ) applied to pin as. the relationship between the status of bits ma[1:0] and the voltage applied to pin as is shown in t ab le 8 . 08h cpd cal_post_div[7:0] calibration synthesizer post-divider t ab le 20 09h cd1 cal_div[22:16] calibration synthesizer main divider bits t ab le 21 0ah cd2 cal_div[15:8] 0bh cd3 cal_div[7:0] 0ch mpd if_notch adds a dc notch in if for a better adjacent channels rejection; depends on standards t ab le 22 main_post_div[6:0] lo synthesizer post-divider bits 0dh md1 main_div[22:16] lo synthesizer main divider bits t ab le 23 0eh md2 main_div[15:8] 0fh md3 main_div[7:0] extended bytes 10h eb1 calvco_forlon determines which vco is used during normal mode operations t ab le 24 agc1_always_ mastern enables agc1 normal operation whatever the tuner type (master or slave) agc1_firstn determines which agc (1 or 2) will be detected when detectors 1 and 2 are up 13h eb4 lo_forcesrce forces the main pll charge pump to source current to the main pll loop ?lter 16h eb7 cal_forcesrce forces the calibration pll charge pump to source current to the calibration pll loop ?lter 17h eb8 cid_alarm indicates that signal sensed by the power detector used during calibrations is out of range 19h eb10 cid_gain[5:0] calibration power detector output 1bh eb12 pd_agc1_det power-down of agc1 detector pd_agc2_det power-down of agc2 detector 1ch eb13 rfc_k[2:0] parameter used during the rf tracking ?lter calibration rfc_m[1:0] parameter used during the rf tracking ?lter calibration 1dh eb14 rfc_cprog[7:0] tuning word of the rf tracking ?lters 21h eb18 agc1_loop_off turns off the agc1 loop agc1_gain[1:0] agc1 gain 23h eb20 force_lock forces the internal plls lock indicator to logic 1 24h eb21 agc2_loop_off turns off the agc2 loop agc2_gain[1:0] agc2 gain 25h eb22 rf_top[2:0] take-over point (top) of the rf agc, detection in rf if_top[3:0] top of the rf agc, detection in if 26h eb23 forcelp_fc2_en fm ?lter selection lp_fc table 7. i 2 c-bus register bits explanation continued address byte symbol description reference
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 14 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.3.2 description of chip id byte 9.3.3 description of temperature sensor byte the temperature sensor is not available in device-off mode, as it requires a 16 mhz clock to operate. table 8. address byte 1 bit description legend: * power-on reset value. bit symbol access value description 7 to 3 - r/w 1 1000* must be set to 1 1000 2 to 1 ma[1:0] r/w programmable address bits 00 v as = 0 v to 0.1 v cc 01 v as = 0.2 v cc to 0.3 v cc 10 v as = 0.4 v cc to 0.6 v cc 11 v as = 0.9 v cc to v cc 0 r/w r/w 0 write mode 1 read mode table 9. address byte 2 bit description legend: * power-on reset value. bit symbol access value description 7 to 6 - r/w 00 must be set to 00 5 to 0 ad[5:0] r/w - programmable address bits of the ?rst programming byte table 10. id - identi?cation byte (subaddress 00h) bit description legend: * power-on reset value. bit symbol access value description 7 - r 1* must be 1 6 to 0 id[6:0] r 000 0100* tda18271hd/c2 identi?cation number table 11. tm - thermo byte (subaddress 01h) bit description legend: * power-on reset value. bit symbol access value description 7 por r 1* power supply falls below the power-on reset level and is reset after a read operation ending with a stop condition 0 power supply is above the power-on reset level 6 lock r 1 main synthesizer is locked to the programmed frequency 0* main synthesizer is not locked to the programmed frequency 5 tm_range r/w temperature range selection for the internal die sensor (see t ab le 52 ) 192 c to 122 c 0* 60 c to 90 c 4 tm_on r/w 1 enables die temperature measurement (see t ab le 52 ) 0* disables die temperature measurement (see t ab le 52 ) 3 to 0 tm_d[3:0] r xxxx data from die temperature measurement (see t ab le 52 )
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 15 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.3.4 description of power level byte (read mode) there are 9 power level bits sent in power level bytes 2 and 3. they indicate the composite voltage gain of the lna, the loaded attenuator voltage gains, and the level at the input of the rf agc. 9.3.5 description of easy prog byte 1 table 12. pl - power level (address 02h and 03h) bit description legend: * power-on reset value. address register bit symbol access value description 03h ep1 7 power_level[8] r agc2 gain, attenuator voltage gain including load, the attenuator load is 50 w (allows the maximum gain of - 6 db) 02h pl 7 power_level[7] 00 - 15 db 01 - 12 db 10 - 9 db 11 - 6 db 6 to 5 power_level[6:5] r agc1 gain, lna voltage gain, the lna voltage gain assumes a 75 w source impedance and a low output impedance 00 6 db 01 9 db 10 12 db 11 15 db 4 to 0 power_level[4:0] r sensed level at the input of the rf agc, detector slope is - 1 db/step 0 0000 103 db m v (rms value) 0 0001 102 db m v (rms value) ... ... 1 1110 73 db m v (rms value) 1 1111 72 db m v (rms value) table 13. ep1 - easy prog byte 1 (subaddress 03h) bit description legend: * power-on reset value. bit symbol access value description 7 power_level[8] r see t ab le 12 6 dis_power_level r/w 1* power level disabled 0 power level enabled 5 - r/w 0* must be set to 0 4 rf_cal_ok r/w rf tracking ?lter calibration procedure (see section 9.4.9 ); updated each time the procedure is started 1 successful 0* not successful
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 16 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.3.6 description of easy prog byte 2 9.3.7 description of easy prog byte 3 the tda18271hd has three different standby modes. two standby modes are dedicated to special application demands; the third standby mode is called device-off. it represents the smallest achievable power consumption. [1] in all modes, the i 2 c-bus interface remains active. all other bit settings are invalid. 3 ir_cal_ok r/w complete image rejection calibration procedure (see section 9.4.4 ); can only be reset with por 1 successful 0* not successful 2 to 0 bp_filter[2:0] r/w 110* rf band-pass ?lter selection (see t ab le 44 ) table 13. ep1 - easy prog byte 1 (subaddress 03h) bit description continued legend: * power-on reset value. bit symbol access value description table 14. ep2 - easy prog byte 2 (subaddress 04h) bit description legend: * power-on reset value. bit symbol access value description 7 to 5 rf_band[2:0] r/w 110* rf tracking ?lter band selection (see t ab le 45 ) 4 to 0 gain_taper[4:0] r/w gain taper value (see t ab le 49 ) 1 1111* minimum attenuation 0 0000 maximum attenuation table 15. ep3 - easy prog byte 3 (subaddress 05h) bit description legend: * power-on reset value. bit symbol access value description 7 to 5 sm, sm_lt, sm_xt r/w 100 power modes t ab le 16 4 to 3 agck_mode[1:0] r/w 10010* de?nes the standard 2 to 0 std[2:0] r/w description of standards (see t ab le 43 ) table 16. power modes bit circuit mode [1] sm sm_lt sm_xt loop- through slave- tuner output crystal oscillator 000ononon nor mal mode 100ononon standby mode with crystal oscillator, slave-tuner output and loop-through output on 1 1 0 off off on standby mode with only crystal oscillator and its output buffer on 1 1 1 off off off device-off mode
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 17 of 69 nxp semiconductors tda18271hd silicon tuner ic [1] depending on the programmed agc_mode, agc1 can be synchronous with either vsync or an internal 16 mhz signal; for analog reception, when no synchronization signal is available for vsync pin, the internal reference may be used. 9.3.8 description of easy prog byte 4 all calibrations require a precise set of sequential operations, therefore it is mandatory to follow the ?owcharts described in section 9.4 . the tda18271hd has two calibration modes: one for the image rejection calibration and one for the rf tracking ?lter calibration. the image rejection calibration optimizes tunable parameters inside the mixer using a set of internal measurements to ensure a 65 db typical value of image rejection. the internal signal used during this phase is generated by the pll calibration (cal pll). table 17. agc modes standard agc_mode[1:0] ep3[4:3] [1] reference signal fm radio 1 1 internal analog tv standards 0 1 vsync digital tv standards 1 1 internal table 18. ep4 - easy prog byte 4 (subaddress 06h) bit description legend: * power-on reset value. bit symbol access value description 7 fm_rfn r/w selection which input is fed to rf ?lter 1 fm input (rf lna on; fm lna on) 0* rf input (rf lna on; fm lna off) 6 xtout_on r/w 1* 16 mhz on pins xtout 0 not 16 mhz on pins xtout 5 - r/w 1* must be set to logic 1 4 to 2 if_level[2:0] r/w if output level selection and attenuation with regard to 2 v (p-p) 000* 2 v (p-p); 0 db 001 1.25 v (p-p); 4 db 010 1 v (p-p); 6 db 011 0.8 v (p-p); 8 db 100 not used 101 not used 110 0.6 v (p-p); 10.4 db 111 0.5 v (p-p); 12 db 1 to 0 cal_mode[1:0] r/w calibration mode selection 00* no calibration (normal mode) 01 power detection mode 10 image rejection calibration (ircal) mode 11 rf tracking ?lter calibration (rfcal) mode
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 18 of 69 nxp semiconductors tda18271hd silicon tuner ic the rf tracking ?lters central frequency can be adjusted with the tuning word rfc_cprog. the rf tracking ?lter calibration (rfcal) uses an internal tone at the input of the tracking ?lters (generated by cal pll) and ?nds the rfc_cprog that corresponds to the maximum transmitted power. the rfcal is just a small part of a more complex algorithm fully described in the ?owcharts in section 9.4 . the power detection mode is a normal mode in which the detector used for the calibrations is switched on. this special mode enables power sensing at the input of the tda18271hd and makes the power scan algorithm possible (see section 9.4.8 flo wchar t td a18271p o w erscan ). 9.3.9 description of easy prog byte 5 9.3.10 description of cal post-divider byte 9.3.11 description of cal divider bytes 1, 2 and 3 table 19. ep5 - easy prog byte 5 (subaddress 07h) bit description legend: * power-on reset value. bit symbol access value description 7 extended_reg r/w enables extended register addressing 1 extended register (10h to 26h) 0* limited register (00h to 0fh); only 1 byte can be programmed after address 0fh within 1 transmission 6 to 4 ir_gstep[2:0] r/w 011* gain step for image rejection calibration 3 - r/w 0* must be set to logic 0 2 to 0 ir_meas[2:0] r/w 000* image rejection measurement frequency range (see t ab le 53 ) table 20. cpd - cal post-divider byte (subaddress 08h) bit description legend: * power-on reset value. bit symbol access value description 7 to 0 cal_post_div[7:0] r/w 00h* calibration synthesizer post-divider (see t ab le 48 ) table 21. cd1, cd2 and cd3 - cal divider bytes 1, 2 and 3 (address 09h, 0ah and 0bh) bit description legend: * power-on reset value. address register bit symbol access value description 09h cd1 7 - r/w 0* must be set to 0 6 to 0 cal_div[22:16] r/w 00h* calibration synthesizer main divider bits 0ah cd2 7 to 0 cal_div[15:8] r/w 00h* 0bh cd3 7 to 0 cal_div[7:0] r/w 00h*
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 19 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.3.12 description of main post-divider byte 9.3.13 description of main divider bytes 1, 2 and 3 9.3.14 description of extended bytes 1 to 23 table 22. mpd - main post-divider byte (subaddress 0ch) bit description legend: * power-on reset value. bit symbol access value description 7 if_notch r/w 0* adds a dc notch in if for better adjacent channels rejection; depends on standards; see t ab le 43 6 to 0 main_post_div[6:0] r/w 000 lo synthesizer post-divider; see t ab le 47 table 23. md1, md2 and md3 - main divider bytes 1, 2 and 3 (address 0dh, 0eh and 0fh) bit description legend: * power-on reset value. address register bit symbol access value description 0dh md1 7 - r/w 0* must be set to 0 6 to 0 main_div[22:16] r/w 00h* lo synthesizer main divider bits 0eh md2 7 to 0 main_div[15:8] r/w 00h* 0fh md3 7 to 0 main_div[7:0] r/w 00h* table 24. eb1 to eb23 - extended bytes 1 to 23 (address 10h to 26h) bit description legend: * power-on reset value. address register bit symbol access value description 10h eb1 7 to 3 eb1[7:3] r 1 1111* extended byte 1 2 calvco_forlon r determines vco used during normal mode operations 1* lo vco is used 0 cal vco is used 1 agc1_always_ mastern r enables agc1 normal operation whatever the tuner type (master or slave) 1* normal operation for the master; 6 db ?xed for the slave 0 normal operation for both the master and the slave 0 agc1_firstn r determines which agc will be updated when detectors 1 and 2 are active 1* agc1 and agc2 both updated 0 agc1 has priority on agc2 11h eb2 7 to 0 eb2[7:0] r/w 0000 0001* extended byte 2 12h eb3 7 to 0 eb3[7:0] r/w 1000 0100* extended byte 3
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 20 of 69 nxp semiconductors tda18271hd silicon tuner ic 13h eb4 7 to 6 eb4[7:6] r/w 01* extended byte 4 5 lo_forcesrce r/w 1 forces the main pll charge pump to source current to the main pll loop ?lter 0* no force 4 to 0 eb4[4:0] r/w 0 0001* extended byte 4 14h eb5 7 to 0 eb5[7:0] r/w 0000 0001* extended byte 5 15h eb6 7 to 0 eb6[7:0] r/w 1000 0100* extended byte 6 16h eb7 7 and 6 eb7[7:6] r/w 01* extended byte 7 5 cal_forcesrce r/w 1 forces the cal pll charge pump to source current to the cal pll loop ?lter 0* no force 4 to 0 eb7[4:0] r/w 0 1000* extended byte 7 17h eb8 7 cid_alarm r signal sensed by the power detector used during calibrations 1 out of range 0* in range 6 to 4 eb8[6:4] r/w 111 0101* extended byte 8 3 eb8[3] r 2 to 0 eb8[2:0] r/w 18h eb9 7 to 0 eb9[7:0] w 0000 0000* extended byte 9 19h eb10 7 and 6 eb10[7:6] r 00* extended byte 10 5 to 0 cid_gain[5:0] r - calibration power detector output 1ah eb11 7 to 0 eb11[7:0] r/w 1000 0110* extended byte 11 1bh eb12 7 and 6 eb12[7:6] r 00* extended byte 12 5 pd_agc1_det r/w agc1 detector 1 power down 0* no power down 4 pd_agc2_det r/w agc2 detector 1 power down 0* no power down 3 to 0 eb12[3:0] r/w 0111* extended byte 12 1ch eb13 7 eb13[7] r/w 1* extended byte 13 6 to 4 rfc_k[2:0] r/w 100* parameters used during the rf tracking ?lter calibration (see t ab le 46 ) 3 and 2 rfc_m[1:0] r/w 00* 1 to 0 eb13[1:0] r/w 10* extended byte 13 1dh eb14 7 to 0 rfc_cprog[7:0] r/w 0000 0000* tuning word of the rf tracking ?lters 1eh eb15 7 to 4 eb15[7:4] r/w 1000 xxxx* extended byte 15 3 to 0 eb15[3:0] r 1fh eb16 7 to 0 eb16[7:0] w 000x xx00* extended byte 16 table 24. eb1 to eb23 - extended bytes 1 to 23 (address 10h to 26h) bit description continued legend: * power-on reset value. address register bit symbol access value description
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 21 of 69 nxp semiconductors tda18271hd silicon tuner ic 20h eb17 7 to 0 eb17[7:0] w 000x xxxx* extended byte 17 21h eb18 7 agc1_loop_off r/w turns the agc1 loop 1 off 0* on 6 to 2 eb18[6:2] r/w 00000* extended byte 18 1 and 0 agc1_gain[1:0] r/w agc1 gain 00* 6 db 01 9 db 10 12 db 11 15 db 22h eb19 7 to 0 eb19[7:0] w 000x xx00* extended byte 19 23h eb20 7 and 6 eb20[7:6] w 10* extended byte 20 5 force_lock w forces the internal lock indicator 1 forced to logic 1 0* not forced 4 to 0 eb20[4:0] w x xxxx* extended byte 20 24h eb21 7 agc2_loop_off r/w turns the agc2 loop 1 off 0* on 6 to 2 eb21[6:2] r/w 00000* extended byte 21 1 and 0 agc2_gain[1:0] r/w agc2 gain 00* - 15 db 01 - 12 db 10 - 9 db 11 - 6 db 25h eb22 7 eb22[7] r 0* extended byte 22 6 to 4 rf_top[2:0] r/w 100* take-over point of the rf agc, detection in rf 3 to 0 if_top[3:0] r/w 1000* take-over point of the rf agc, detection in if 26h eb23 7 to 3 eb23[7:3] r/w 1 0110* extended byte 23 2 forcelp_ fc2_en r/w 0* fm ?lter selection; see t ab le 25 and t ab le 26 1 lp_fc r/w 0* 0 eb23[0] r/w 0* extended byte 23 table 24. eb1 to eb23 - extended bytes 1 to 23 (address 10h to 26h) bit description continued legend: * power-on reset value. address register bit symbol access value description
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 22 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4 i 2 c-bus programming ?owcharts the following ?owcharts describe how to: ? initialize the tda18271hd ? launch the calibrations ? go to normal mode the image rejection calibration and rf tracking ?lter calibration must be launched exactly as described in the ?owchart, otherwise bad calibration or even blocking of the tda18211hd can result making it impossible to communicate via the i 2 c-bus. proper internal initialization requires switching to normal mode using a single i 2 c-bus sequence from subaddresses 03h to 0fh. 9.4.1 flowchart explanation this section provides instructions for reading the ?owcharts. table 25. low-pass cut-off frequency when using rf_in input rf input forcelp_fc2_en lp_fc std[1:0] cut-off frequency (mhz) rf_in 1 1 xx 1.5 0 x 00 6 0 x 01 7 0 x 10 8 0 x 11 9 table 26. low-pass cut-off frequency when using fm_in input rf input forcelp_fc2_en lp_fc std[1:0] cut-off frequency (mhz) fm_in 1 0 00 6 1 0 01 7 1 0 10 8 1 0 11 9 1 1 xx 1.5
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 23 of 69 nxp semiconductors tda18271hd silicon tuner ic 1. i 2 c-bus write: C ir_gstep is updated, no immediate i 2 c-bus write C i2c_xtout_asym is updated followed by an i 2 c-bus write of byte ep5 C pd_agc1_det is updated followed by an i 2 c-bus write of byte eb12 C i 2 c-bus write of byte eb13 with current value of the software internal register of byte eb13 i 2 c-bus read: C subaddressing is not supported in read mode C the mandatory i 2 c-bus read access procedures to the tda18271hd are described in section 9.4.16 flo wchar t td a18271read and section 9.4.17 flo wchar t td a18271readextended 2. update at the same time is indicated by separation with commas: ir_gstep, i2c_xtout_asym and pd_agc1_det are updated, no i 2 c-bus registers updated 3. i 2 c-bus registers update bytes ep5, eb12 and eb13 4. bytes ep1 to cd2 are written in a single i 2 c-bus sequence example: start c0 03 ep1 ep2 ep3 ep4 ep5 cpd cd1 cd2 stop 5. bytes ep1, ep2 and md3 are written in as many i 2 c-bus sequences as needed example: start c0 03 ep1 ep2 stop start c0 0f md3 stop fig 3. programming sequence 001aag935 initialization phase actions registers to update in the software internal table tuner registers update master or slave for i 2 c-bus write ir_gstep = 2h i2c_xtout_asym = 1 pd_agc1_det = 1 - - ep5 eb12 eb13 ir_gstep = 2h, i2c_xtout_asym = 1, pd_agc1_det = 1 - - ep5 eb12 eb13 - ep1...ep2, md3 - ep1...cd2 internal table i 2 c-bus ms
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 24 of 69 nxp semiconductors tda18271hd silicon tuner ic units : in the ?owcharts, hexadecimal values end with h, decimal values with d. fig 4. blocks used in the ?owcharts master/slave variable ms_init is input for each of the three procedures. fig 5. variable used in multiple procedures xx is a list of values stored in the ?rst column of the map xy_map. yy is a list of values stored in column in xy_map yy_out is the particular value of yy to ?nd row n. xx(n - 1) < xx_in xx(n) a. general description to ?nd a value in a table finding the row of rfc_k: 350000 < 650000 720000. result n = 1. the value of rfc_k is then 3; see t ab le 46 b. example to ?nd the value rfc_k corresponding to f rf = 650 mhz in the km_map fig 6. finding a value in a table x x x x x x 001aag722 x x stored or already calculated data input variable result of an operation output variable 001aah042 i 2 c-bus initialization sequence call tda18271fixedcontentsi2cupdate calibrate the rf tracking filters call tda18271calcrffiltercurve back to por call tda18271mspor ms_init 001aag822 xx_in xy_map yy_out find yy = f(xx) in xy_map 001aag723 650 mhz km_map rfc_k find rfc_k = f rf(max) in km_map
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 25 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.2 flowchart tda18271setrf_dual the initialization phase has to be launched before any setrf. [1] ms = 1: master is selected for the channel con?guration; ms = 0: slave is selected for the channel con?guration. 9.4.3 flowchart tda18271initcal table 27. tda18271setrf_dual function description reference description protocol top view for a dual tuner application input rf_freq, standard (from microcontroller), ms (from microcontroller) [1] ta bl e - output - fig 7. flowchart tda18271setrf_dual 001aah043 master and slave initialization call tda18271initcal set the rf tracking filters call tda18271rftrackingfilterscorrection set the tuner to the wanted channel call tda18271channelconfiguration tmvalue_rfcal tmvalue_rfcal init_done start tda18271setrf_dual end tda18271setrf_dual init_done = 1 standard rf_freq ms rf_freq ms no yes table 28. tda18271initcal function description reference description systematic initializations for master and slave tuners input ms_init ta bl e - output tmvalue_rfcal, init_done
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 26 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.4 flowchart tda18271fixedcontentsi2cupdate the register contents are not described in detail as this procedure is not to be modi?ed. fig 8. flowchart tda18271initcal 001aah044 ms_init = 1 master initialization i 2 c-bus initialization sequence call tda18271fixedcontentsi2cupdate calibrate the rf tracking filters call tda18271calcrffiltercurve back to por call tda18271mspor ms_init ms_init init_done tmvalue_rfcal start tda18271initcal end tda18271initcal ms_init = 0 slave initialization i 2 c-bus initialization sequence call tda18271fixedcontentsi2cupdate calibrate the rf tracking filters call tda18271calcrffiltercurve back to por call tda18271mspor init_done = true ms_init ms_init table 29. tda18271fixedcontentsi2cupdate function description reference description update and write the tda18271hd registers sequential update of agc1 and agc2 image calibration algorithm input ms ta bl e - output -
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 27 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.5 flowchart tda18271calcrffiltercurve fig 9. flowchart tda18271fixedcontentsi2cupdate 001aah045 actions internal table update with correct values tuner registers update tm = 08h pl = 80h ep1 = c6h ep2 = dfh ep3 = 16h ep4 = 60h ep5 = 80h cpd = 80h cd1 = 00h cd2 = 00h cd3 = 00h mpd = 00h md1 = 00h md2 = 00h md3 = 00h eb1 = fch eb2 = 01h eb3 = 84h eb4 = 41h eb5 = 01h eb6 = 84h eb7 = 40h eb8 = 07h eb9 = 00h eb10 = 00h eb11 = 96h eb12 = 33h eb13 = c1h eb14 = 00h eb15 = 8fh eb16 = 00h eb17 = 00h eb18 = 8ch eb19 = 00h eb20 = 20h eb21 = b3h eb22 = 48h eb23 = b0h - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - internal table ircal low band initialization ep3 = 1fh ep4 = 66h ep5 = 81h cpd = cch cd1 = 6ch cd2 = 00h cd3 = 00h mpd = cdh md1 = 77h md2 = 08h md3 = 00h - - - - - - - - - - - cal pll update ep5 = 85h cpd = cbh cd1 = 66h cd2 = 70h - - - - agc1 gain setup eb17 = 00h eb17 = 03h eb17 = 43h eb17 = 4ch eb17 eb17 eb17 eb17 i 2 c-bus - tm...eb23 tuner registers update - ep3...md3 main pll cp source on eb4 = 61h eb4 tuner registers update - ep3...cd3 ep2 launch detector - launch optimization algorithm - ep1 wait 5 ms - pll locking main pll cp source off eb4 = 41h eb4 wait 1 ms wait 5 ms - pll locking wait 30 ms - optimization wait 5 ms - measurement ircal high band initialization ep5 = 83h cpd = 98h cd1 = 65h cd2 = 00h mpd = 99h md1 = 71h md2 = cdh - - - - - - - cal pll update ep5 = 87h cd1 = 65h cd2 = 50h - - - tuner registers update - ep3...md3 tuner registers update - ep3...cd3 ep2 launch detector - launch optimization algorithm - ep4 back to normal mode ep4 = 64h ep1 synchronization - ep1 wait 5 ms - pll locking wait 5 ms - pll locking wait 30 ms - optimization wait 5 ms - measurement ircal mid band initialization ep5 = 82h cpd = a8h cd2 = 00h mpd = a9h md1 = 73h md2 = 1ah - - - - - - cal pll update ep5 = 86h cpd = a8h cd1 = 66h cd2 = a0h - - - - tuner registers update - ep3...md3 tuner registers update - ep3...cd3 ep2 launch detector - launch optimization algorithm - ep1 wait 5 ms - pll locking wait 5 ms - pll locking wait 30 ms - optimization wait 5 ms - measurement start tda18271fixedcontentsi2cupdate end tda18271fixedcontentsi2cupdate ms table 30. tda18271calcrffiltercurve function description reference description calculate the rf ?lter curve coef?cients input rf1_default, rf2_default, rf3_default, ms table rf_band_map t ab le 45 rf_band_map output tmvalue_rfcal
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 28 of 69 nxp semiconductors tda18271hd silicon tuner ic variable rf_max is used for frequency f rf(max) . fig 10. flowchart tda18271calcrffiltercurve 001aah046 wait 200 ms for die temperature stabilization f rf(max) = 47900 khz powerscan initialization call tda18271powerscaninit read die current temperature call tda18271thermometerread rf_band 0 filters calibration call tda18271rftrackingfiltersinit f rf(max) = 61100 khz rf_band 1 filters calibration call tda18271rftrackingfiltersinit f rf(max) rf1_0, rf_a1_0, rf_b1_0 f rf(max) rf1_1, rf_a1_1, rf_b1_1 ms tmvalue_rfcal start tda18271calcrffiltercurve end tda18271calcrffiltercurve f rf(max) f rf(max) f rf(max) = 152600 khz rf_band 2 filters calibration call tda18271rftrackingfiltersinit f rf(max) rf1_2, rf_b1_2, rf2_2, rf_a1_2 f rf(max) f rf(max) = 164700 khz rf_band 3 filters calibration call tda18271rftrackingfiltersinit f rf(max) rf1_3, rf_a1_3, rf_b1_3 f rf(max) f rf(max) = 203500 khz rf_band 4 filters calibration call tda18271rftrackingfiltersinit f rf(max) rf1_4, rf_a1_4, rf_b1_4 f rf(max) f rf(max) = 457800 khz rf_band 5 filters calibration call tda18271rftrackingfiltersinit f rf(max) rf1_5, rf_b1_5, rf2_5, rf_a1_5, rf3_5, rf_a2_5, rf_b2_5 f rf(max) f rf(max) = 865000 khz rf_band 6 filters calibration call tda18271rftrackingfiltersinit f rf(max) rf1_6, rf_b1_6, rf2_6, rf_a1_6, rf3_6, rf_a2_6, rf_b2_6 f rf(max)
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 29 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.6 flowchart tda18271rftrackingfiltersinit bcal is a boolean output from tda18271powerscan: bcal = 1 (true): enables the calibration of the rf tracking ?lters bcal = 0 (false): no calibration is performed, default values for rfc_cprog are used table 31. tda18271rftrackingfiltersinit function description reference description calculate the rf ?lter curve coef?cients used for their approximation input f rf(max) , ms table rf_cal_map (cprog_table = f (frequency)) t ab le 51 rf_cal_map output rf1, rf2, rf3, rf_a1, rf_b1, rf_a2, rf_b2
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 30 of 69 nxp semiconductors tda18271hd silicon tuner ic fig 11. flowchart tda18271rftrackingfiltersinit 001aah047 look for optimized calibration frequency call tda18271powerscan rf_a1 = 0, rf_b1 = 0, rf_a2 = 0, rf_b2 = 0 find cprog_table = f rf(max) in rf_cal_map find rf1_default, rf2_default, rf3_default = f rf(max) in rf_band_map rf1_default rf1_default, rf2_default, rf3_default cprog_table1 bcal rf1 start tda18271rftrackingfiltersinit end tda18271 rftrackingfiltersinit bcal = 1 ms rf1 rf_b1 rf_a1 no yes bcal = 0 no yes rf2_default = 0 yes no look for optimized calibration frequency call tda18271powerscan rf2_default bcal rf2 ms rf2 find cprog_cal1 to track rf1 call tda18271calibraterf rf1 rf1 rf_cal_map cprog_cal1 = cprog_table1 cprog_cal1 cprog_table1 rf_b1 = cprog_cal1 - cprog_table1 rf1 cprog_cal1 cprog_table1 cprog_cal1 ms find cprog_table = f rf(max) in rf_cal_map cprog_table2 end tda18271 rftrackingfiltersinit bcal = 1 rf_a1 no yes bcal = 0 no yes rf3_default = 0 yes find cprog_cal2 to track rf2 call tda18271calibraterf rf2 rf2 rf_cal_map cprog_cal2 = cprog_table2 cprog_cal2 rf_a1 = (cprog_cal2 - cprog_table2 - cprog_cal1 + cprog_table1) / (rf2 - rf1) rf1 rf2 cprog_cal1 cprog_cal2 cprog_table1 cprog_table2 rf_a2 rf_b2 rf_a2 = (cprog_cal3 - cprog_table3 - cprog_cal2 + cprog_table2)/(rf3 - rf2) rf_b2 = cprog_cal2 - cprog_table2 rf2 rf3 cprog_cal2 cprog_cal3 cprog_table2 cprog_table3 cprog_cal2 ms no look for optimized calibration frequency call tda18271powerscan rf3_default bcal rf3 ms rf3 find cprog_table = f rf(max) in rf_cal_map cprog_table3 end tda18271rftrackingfiltersinit bcal = 1 no yes bcal = 0 no yes find cprog_cal3 to track rf3 call tda18271calibraterf rf3 rf3 rf_cal_map cprog_cal3 = cprog_table3 cprog_cal3 cprog_table3 cprog_cal3 ms cprog_table2
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 31 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.7 flowchart tda18271powerscaninit frequency unit during the algorithm in khz. variable count homogeneous to khz. 9.4.8 flowchart tda18271powerscan table 32. tda18271powerscaninit function description reference description ?xed settings of the tda18271powerscan input ms ta bl e - output - fig 12. flowchart tda18271powerscaninit 001aah048 start tda18271powerscaninit end tda18271powerscaninit ms std = 12, if_level = 0 cal_mode = 0 - actions set standard mode to digital mode - ep3...ep4 tuner registers update internal table i 2 c-bus agc1_gain = 0 agc2_gain = 0 eb18 - set agc1_gain to 6 db set agc2_gain to - 15 db forcelp_fc2_en = 1, lp_fc = 1 - 1.5 mhz low-pass filter - eb21...eb23 tuner register update table 33. tda18271powerscan function description reference description ?nd an interference-free calibration frequency input freq_input, ms table rf_band_map, rf_cal_map, cid_target_map t ab le 45 rf_band_map t ab le 51 rf_cal_map t ab le 54 cid_t arget_map output bcal, freq_output
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 32 of 69 nxp semiconductors tda18271hd silicon tuner ic fig 13. flowchart tda18271powerscan 001aah049 cid_gain < cid_target cid_target count_limit freq_mainpll ms freq_input freq_input freq_input bcal freq_output start tda18271powerscan end tda18271powerscan rf_band_map rf_cal_map cid_target_map freq_mainpll count freq_mainpll sgn count freq_mainpll rf_band = rf_band rfc_cprog = cprog_table gain_taper = gain_taper cid_target = cid_target count_limit = count_limit - actions freq_mainpll freq_mainpll = freq_input = 1 mhz count cid_gain wait count = count + 200 cid_gain read power detection information call tda18271readextended sgn count wait sgn = - sgn count = 200 wait = true bcal = 1 freq_output = freq_mainpll - 1 mhz end tda18271powerscan bcal freq_output freq_input bcal = 0 freq_output = freq_input sgn freq_output bcal count wait algorithm initialization sgn = 1 freq_output = freq_input bcal = 0 count = 0 wait = false freq_mainpll = freq_input + (sgn count) + 1 mhz wait 100 m s - pll locking wait 5 ms - pll locking wait = false downconvert updated freq_input to 1 mhz call tda18271calcmainpll read power detection information call tda18271readextended no no yes yes wait 5 ms - pll locking downconvert freq_input to 1 mhz call tda18271calcmainpll find rf_band = f rf(max) in rf_band_map (ms) find cprog_table = f rf(max) in rf_cal_map find gain_taper = f rf(max) in gain_taper_map find cid_target count_limit = f rf(max) in cid_target_map - ep2, eb14 tuner register update internal table i 2 c-bus detection mode launch power detection measurement cal_mode = 1 - ep4 ep2 launch power detection measurement - ep2 count > count_limit no no yes yes yes cid_gain 3 cid_target wait = true no sgn > 0 ms
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 33 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.9 flowchart tda18271calibraterf table 34. tda18271rfcalibraterf function description reference description ?nds the cprog for which freq_input is the central frequency of the rf tracking ?lters input freq_input, ms table bp_filter_map, km_map and gain_taper_map t ab le 44 bp_fil ter_map t ab le 46 km_map t ab le 49 gain_t aper_map output rfc_cprog
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 34 of 69 nxp semiconductors tda18271hd silicon tuner ic fig 14. flowchart tda18271calibraterf 001aah050 cal_mode = 0 sm_lt = 1 agc1_gain = 3h ep4 - eb18 actions normal mode switch off agc1 set agc1_gain to 15 db bp_filter = bp_filter gain_taper = gain_taper rf_band = rf_band rfc_k = rfc_k, rfc_m = rfc_m - - - - frequency dependent parameters update find bp_filter = f rf(max) in bp_filter_map find gain_taper = f rf(max) in gain_taper_map find rf_band = f rf(max) in rf_band_map (ms) find rfc_k, rfc_m = f rf(max) in km_map internal table i 2 c-bus rfc_cprog bp_filter_map km_map gain_taper_map freq_input ms freq_input freq_input + 1 mhz - ep1 ep3, eb13 tuner registers update - ep4 ep5 tuner registers update set the internal calibration signal call tda18271calccalpll normal operation for the main pll charge pump normal operation for the cal pll charge pump get the calibration result call tda18271readextended lo_forcesrce = 0 cal_forcesrce = 0 downconvert the calibration signal to 1 mhz call tda18271calcmainpll wait 5 ms wait 10 ms - plls locking internal synchronization ep2, ep1, ep2, ep1 eb4 eb7 launch the rf tracking filters calibration force_lock = 1 wait 60 ms - calibration ongoing eb20 normal mode switch on agc1 set agc1_gain to 6 db cal_mode = 0 sm_lt = 0 agc1_gain = 0 tuner registers update synchronization - - eb18 - ep3 ... ep4 - ep1 lo_forcesrce = 1 cal_forcesrce = 1 rfc_cprog = 0 force_lock = 0 cal_mode = 3h eb4 eb7 eb14 eb20 - main pll charge pump source cal pll charge pump source force dc-dc converter to 0 v disable plls lock rf tracking filters calibration mode start tda18271calibraterf end tda18271calibraterf ms
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 35 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.10 flowchart tda18271mspor 9.4.11 flowchart tda18271rftrackingfilterscorrection table 35. tda18271mspor function description reference description master or slave tuner goes to power-on reset (por) mode input ms ta bl e - output - fig 15. flowchart tda18271mspor 001aah051 start tda18271mspor end tda18271mspor pd_agc1_det = 0 agc1_loop_off = 0 agc1_gain = 0 agc2_gain = 3h eb12 - eb18 - actions power up detector 1 turn agc1 loop on set agc1_gain to 6 db set agc2_gain to - 6 db sm = 1, sm_lt = 0, sm_xt = 0 ep3 por mode internal table i 2 c-bus forcelp_fc2_en = 0, lp_fc = 0 eb21 ... eb23 1.5 mhz low-pass filter disabled ms table 36. tda18271rftrackingfilterscorrection function description reference description ?nd the cprog corresponding to the programmed central frequency freq_input input freq_input, tmvalue_rfcal, ms table rf_band_map, rf_cal_dc_over_dt_map, rf_cal_map t ab le 45 rf_band_map t ab le 50 rf_cal_dc_o ver_dt_map t ab le 51 rf_cal_map output -
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 36 of 69 nxp semiconductors tda18271hd silicon tuner ic fig 16. flowchart tda18271rftrackingfilterscorrection 001aah052 action power-up tda18271 sm = 0, sm_lt = 0, sm_xt = 0 ep3 read current die temperature call tda18271thermometerread frequency dependent parameters update find rfc_cprog = f rf(max) in rf_cal_map, cprog_table = rfc_cprog find rf1, rf2, rf3, rf_a1, rf_a2, rf_b1, rf_b2 = f rf(max) in rf_band_map (ms) internal table i 2 c-bus calculate final cprog cprog = capprox + rfcal_tcomp rfc_cprog = cprog eb14 rf_cal_map rf_band_map tmvalue_current find dcoverdt = f rf(max) in rf_cal_dc_over_dt_map dcoverdt cprog_table rf1 rf2 rf3 rf_a1 rf_a2 rf_b1 rf_b2 start tda18271rftrackingfilterscorrection end tda18271rftrackingfilterscorrection rf3 = 0 or freq_input < rf2 no yes freq_input ms rf_cal_dc_over_dt_map freq_input calculate temperature compensation rfcal_tcomp = dcoverdt (tmvalue_current - tmvalue_rfcal) rfcal_tcomp dcoverdt tmvalue_current capprox rfcal_tcomp tmvalue_rfcal capprox = rf_a2 (freq_input - rf2) + rf_b2 + cprog_table capprox rf_a2 rf2 rf_b2 cprog_table freq_input capprox = rf_a1 (freq_input - rf1) + rf_b1 + cprog_table capprox rf_a1 rf1 rf_b1 cprog_table freq_input capprox < 0 capprox > 255 no no yes yes capprox = 255 capprox = 0 ms
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 37 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.12 flowchart tda18271channelcon?guration table 37. tda18271channelcon?guration function description reference description tunes the tuner according to the channel and broadcast con?guration input freq_input, ms, standard table standard_description_map, bp_filter_map, rf_band_map, cal_pll_map, gain_taper_map, ir_meas_map t ab le 43 st and ard_description_map t ab le 44 bp_fil ter_map t ab le 45 rf_band_map t ab le 48 cal_pll_map t ab le 49 gain_t aper_map t ab le 53 ir_meas_map output -
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 38 of 69 nxp semiconductors tda18271hd silicon tuner ic fig 17. flowchart tda18271channelcon?guration 001aah053 - - - - eb22 - - actions internal table i 2 c-bus update frequency dependent parameters find ir_meas = f rf(max) in ir_meas_map find bp_filter = f rf(max) in bp_filter_map find rf_band = f rf(max) in rf_band_map (ms) find gain_taper = f rf(max) in gain_taper_map ir_meas = ir_meas bp_filter = bp_filter rf_band = rf_band gain_taper = gain_taper - disable power level indicator dis_power_level = 1 - start tda18271channelconfiguration end tda18271channelconfiguration ir_meas_map bp_filter_map rf_band_map gain_taper_map freq_input ms standard_description_ map standard dual tuner and agc1 extra configurations managing main vco when master, cal vco when slave agc1 always active agc1 has priority on agc2 tuner registers update freq_pll = freq_input + if_freq tune to wanted channel frequency call tda18271calcmainpll tuner registers update main pll charge pump source wait 1 ms normal operation for the main pll - tm ... ep5 lo_forcesrce = 1 lo_forcesrce = 0 eb4 eb4 - eb1 calvco_forlon = ms agc1_always_mastern = 0 agc1_firstn = 0 - if_freq freq_pll tune to wanted channel frequency call tda18271calcmainpll find cal_post_div = f lo(max) in cal_pll_map cal pll charge pump source wait 1 ms normal operation for the cal pll mpd = cal_post_div & 7fh mpd cal_forcesrce = 1 cal_forcesrce = 0 tuner registers update - tm ... ep5 eb7 eb7 freq_pll cal_pll_map freq_pll ms freq_input if_freq end tda18271channelconfiguration ms = 1 yes no standard mode update update tv broadcast parameters switch rfagc to high speed mode normal mode update if output level update if notch frequency update extended byte 22 update if center frequency update fm_rfn std = std from standard_description_map according to standard value std[2] = 0 cal_mode = 0 if_level = if_level if_notch = if_notch eb22 = eb22 if_freq = if_freq fm_rfn = fm_rfn switch rfagc to normal speed mode std[2] = not (fm_rfn) ep3 wait 20 ms switch rfagc to normal speed mode std[2] = not (fm_rfn) ep3 wait 20 ms ms from standard_description_map according to standard
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 39 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.13 flowchart tda18271calcmainpll mpd, md1, md2 and md3 are 8-bit registers. arithmetical and logical operations performed on these registers are handled as binary operations. dividing is right shifting and multiplying is left shifting. 9.4.14 flowchart tda18271calccalpll cpd, cd1, cd2 and cd3 are 8-bit registers. arithmetical and logical operations performed on these registers are handled as binary operations. dividing is right shifting and multiplying is left shifting. table 38. tda18271calcmainpll function description reference description ?nds the correct values for the bytes mpd, md1, md2, md3 and update the tuner registers input freq_input, ms table main_pll_map t ab le 47 main_pll_map output - fig 18. flowchart tda18271calcmainpll 001aah054 tuner registers update internal table i 2 c-bus start tda18271calcmainpll end tda18271calcmainpll div main_div main_post_div freq_input main_pll_map freq_input main_post_div div main_div md1 = (main_div / 2 16 ) & 7fh md2 = (main_div / 2 8 ) md3 = main_div - mpd md3 - - mpd = main_post_div & 7fh find main_post_div, div = f lo(max) in main_pll_map update mpd byte main_div = (div freq_input 2 7 ) / 125 update md1, md2, md3 bytes ms
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 40 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.15 flowchart tda18271thermometerread table 39. tda18271calccalpll function description reference description ?nds the correct values for the bytes cpd, cd1, cd2, cd3 and update the tuner registers input freq_input, ms table cal_pll_map t ab le 48 cal_pll_map output - fig 19. flowchart tda18271calccalpll 001aah055 tuner registers update internal table i 2 c-bus start tda18271calccalpll end tda18271calccalpll div cal_div cal_post_div freq_input cal_pll_map freq_input cal_post_div div cal_div cd1 = (cal_div / 2 16 ) & 7fh cd2 = (cal_div / 2 8 ) cd3 = cal_div - cpd cd3 - - cpd = cal_post_div find cal_post_div, div = f lo(max) in cal_pll_map update cpd byte cal_div = (div freq_input 2 7 ) / 125 update cd1, cd2, cd3 bytes ms table 40. tda18271thermometerread function description reference description turns the on-chip temperature sensor on, reads the current temperature on the die and then turns the temperature sensor off input ms table thermometer_map t ab le 52 thermometer_map output tmvalue (temperature in c)
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 41 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.16 flowchart tda18271read the internal software registers are never updated at any time during the read procedure but are updated when the tda18271read is called. the i 2 c-bus read in the tda18271hd does not support subaddressing or variable length sequences. the chip can only be read by performing read sequences tda18271read (16 bytes) or tda18271readextended (39 bytes). fig 20. flowchart tda18271thermometerread 001aah056 internal table actions i 2 c-bus start tda18271thermometerread end tda18271thermometerread tm_d tm_range tmvalue tm_range tm_d tm_range tm_d tm_on = 0 cal_mode = 0 tm ep4 tm tm_on = 1 read thermometer information call tda18271read read thermometer information call tda18271read find tmvalue = f (tm_d, tm_range) in thermometer_map switch thermometer on tm tm_range = not (tm_range) switch tm_range wait 10 ms - temperature sensing switch thermometer off normal mode (tm_d = 0) and (tm_range = 1) or (tm_d = 8) and (tm_range = 0) ye s no ms table 41. tda18271read function description reference description reads the ?rst 16 bytes of the tda18271hd input ms ta bl e - output an image of the tuner registers from tm to md3
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 42 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.4.17 flowchart tda18271readextended the internal software registers are not updated throughout a read procedure. the update is performed at the level of the call tda18271readextended. (1) addread = c1h, c3h, c5h or c7h. (2) x = 1, 3, 5 or 7. fig 21. flowchart tda18271read 001aah057 start tda18271read ms read the first 16 bytes starting at address cx00h (2) addread (1) choose read address = f (ms) end tda18271read tm ...md3 addread table 42. tda18271readextended function description reference description read the ?rst 39 bytes of the tda18271hd input ms ta bl e - output an image of the tuner registers from tm to eb23 (1) addread = c1h, c3h, c5h or c7h. (2) x = 1, 3, 5 or 7. fig 22. flowchart tda18271readextended 001aah058 start tda18271readextended ms read the first 39 bytes starting at address cx00h (2) addread (1) choose read address = f (ms) end tda18271readextended tm ...eb23 addread
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 43 of 69 nxp semiconductors tda18271hd silicon tuner ic 9.5 maps [1] recommended values for analog and digital reception with a tda8295 if demodulator and a tda10048hn channel decoder respectively. [2] eb22[7:0] is the byte of the take-over points of the rf_agc (bits rf_top[2:0] and bits if_top[3:0]). the rf performances (see section 13 char acter istics ) relate to these standard dependent arrangements. any other combination of rf_top and if_top ?elds is not recommended. [3] digital standard settings may vary, depending on channel decoder used. table 43. standard_description_map standard selection recommended values [1] std[2:0] fm_rfn if_level[2:0] if_notch eb22[7:0] [2] f if (mhz) radio fm radio 000 1 000 0 2ch 1.25 analog tv analog tv std b 101 0 000 0 2ch 6 analog tv std d/k 110 6.9 analog tv std g/h 7.1 analog tv std i 7.25 analog tv std l 6.9 analog tv std l 1.25 analog tv std m/n 100 5.4 digital tv [3] atsc 6 mhz 100 0 001 1 37h 3.25 dvb-t 6 mhz 3.30 dvb-t 7 mhz 3.50 dvb-t 8 mhz 101 4 qam 6 mhz 4 qam 8 mhz 111 5 table 44. bp_filter_map f rf(max) (khz) bp_filter[2:0] 62000 000 84000 001 100000 010 140000 011 170000 100 180000 101 865000 110
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 44 of 69 nxp semiconductors tda18271hd silicon tuner ic the km_map refers to parameters used during the rf tracking ?lter calibration. these parameters are frequency dependent. table 45. rf_band_map f rf(max) (khz) rf_band [2:0] used in ?owchart rf1_ default (khz) rf2_ default (khz) rf3_ default (khz) rf_a1 rf_b1 rf_a2 rf_b2 rf1 rf2 rf3 47900 000 rf_a1_0 rf_b1_0 rf_a2_0 rf_b2_0 rf1_0 0 0 46000 0 0 61100 001 rf_a1_1 rf_b1_1 rf_a2_1 rf_b2_1 rf1_1 0 0 52200 0 0 152600 010 rf_a1_2 rf_b1_2 rf_a2_2 rf_b2_2 rf1_2 rf2_2 0 70100 136800 0 164700 011 rf_a1_3 rf_b1_3 rf_a2_3 rf_b2_3 rf1_3 0 0 156700 0 0 203500 100 rf_a1_4 rf_b1_4 rf_a2_4 rf_b2_4 rf1_4 0 0 186250 0 0 457800 101 rf_a1_5 rf_b1_5 rf_a2_5 rf_b2_5 rf1_5 rf2_5 rf3_5 230000 345000 426000 865000 110 rf_a1_6 rf_b1_6 rf_a2_6 rf_b2_6 rf1_6 rf2_6 rf3_6 489500 697500 842000 table 46. km_map f rf(max) (khz) rfc_k[2:0] rfc_m[1:0] 47900 011 10 61100 100 01 350000 011 00 720000 010 01 865000 011 11 table 47. main_pll_map f lo(max) (khz) main_post_div[6:0] div [1] 33125 57h f0h 35500 56h e0h 38188 55h d0h 41375 54h c0h 45125 53h b0h 49688 52h a0h 55188 51h 90h 62125 50h 80h 66250 47h 78h 71000 46h 70h 76375 45h 68h 82750 44h 60h 90250 43h 58h 99375 42h 50h 110375 41h 48h 124250 40h 40h 132500 37h 3ch 142000 36h 38h 152750 35h 34h 165500 34h 30h
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 45 of 69 nxp semiconductors tda18271hd silicon tuner ic [1] used in section 9.4.13 flo wchar t td a18271calcmainpll . 180500 33h 2ch 198750 32h 28h 220750 31h 24h 248500 30h 20h 265000 27h 1eh 284000 26h 1ch 305500 25h 1ah 331000 24h 18h 361000 23h 16h 397500 22h 14h 441500 21h 12h 497000 20h 10h 530000 17h 0fh 568000 16h 0eh 611000 15h 0dh 662000 14h 0ch 722000 13h 0bh 795000 12h 0ah 883000 11h 09h 994000 10h 08h table 48. cal_pll_map f lo(max) (khz) cal_post_div[7:0] div [1] 33813 ddh d0h 36625 dch c0h 39938 dbh b0h 43938 dah a0h 48813 d9h 90h 54938 d8h 80h 62813 d3h 70h 67625 cdh 68h 73250 cch 60h 79875 cbh 58h 87875 cah 50h 97625 c9h 48h 109875 c8h 40h 125625 c3h 38h 135250 bdh 34h 146500 bch 30h 159750 bbh 2ch table 47. main_pll_map continued f lo(max) (khz) main_post_div[6:0] div [1]
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 46 of 69 nxp semiconductors tda18271hd silicon tuner ic [1] used in section 9.4.14 flo wchar t td a18271calccalpll . 175750 bah 28h 195250 b9h 24h 219750 b8h 20h 251250 b3h 1ch 270500 adh 1ah 293000 ach 18h 319500 abh 16h 351500 aah 14h 390500 a9h 12h 439500 a8h 10h 502500 a3h 0eh 541000 9dh 0dh 586000 9ch 0ch 639000 9bh 0bh 703000 9ah 0ah 781000 99h 09h 879000 98h 08h table 49. gain_taper_map gain_taper[4:0] [1] f rf(max) (khz) 1 2 3 4 1fh 45400 154300 - - 1eh 45800 156100 - - 1dh 46200 157800 - - 1ch 46700 159500 - - 1bh 47100 161200 - - 1ah 47500 163000 - - 19h 47900 164700 - 476300 18h - - - 494800 17h 49600 170200 - 513300 16h 51200 175800 - 531800 15h 52900 181300 - 550300 14h 54500 186900 216200 568900 13h 56200 192400 228900 587400 12h 57800 198000 241600 605900 11h 59500 203500 254400 624400 10h 61100 - 267100 642900 0fh - - 279800 661400 0eh - - 292500 679900 0dh 67600 - 305200 698400 table 48. cal_pll_map continued f lo(max) (khz) cal_post_div[7:0] div [1]
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 47 of 69 nxp semiconductors tda18271hd silicon tuner ic [1] the gain taper function compensates for any systematic rf gain ripple, giving a ?at rf gain with frequency. 0ch 74200 - 317900 716900 0bh 80700 - 330700 735400 0ah 87200 - 343400 753900 09h 93800 - 356100 772500 08h 100300 - 368800 791000 07h 106900 - 381500 809500 06h 113400 - 394200 828000 05h 119900 - 406900 846500 04h 126500 - 419700 865000 03h 133000 - 432400 - 02h 139500 - 445100 - 01h 146100 - 457800 - 00h 152600 - - - table 49. gain_taper_map continued gain_taper[4:0] [1] f rf(max) (khz) 1 2 3 4 table 50. rf_cal_dc_over_dt_map f rf(max) (khz) dcoverdt [1] f rf(max) (khz) dcoverdt [1] f rf(max) (khz) dcoverdt [1] f rf(max) (khz) dcoverdt [1] 47900 0h 383000 22h 457800 3ch 754000 3ch 55000 0h 386000 23h 465000 0fh 759000 3dh 61100 0ah 389000 24h 477000 12h 764000 3eh 64000 0ah 393000 25h 483000 14h 769000 3fh 82000 14h 396000 26h 502000 19h 774000 40h 84000 19h 399000 27h 508000 1bh 779000 41h 119000 1ch 402000 28h 519000 1ch 784000 43h 124000 20h 404000 29h 522000 1dh 789000 46h 129000 2ah 407000 2ah 524000 1eh 794000 48h 134000 32h 409000 2bh 534000 1fh 799000 4bh 139000 39h 412000 2ch 549000 20h 804000 4fh 144000 3eh 414000 2dh 554000 22h 809000 54h 149000 3fh 417000 2eh 584000 24h 814000 59h 152600 40h 419000 2fh 589000 26h 819000 5dh 154000 40h 422000 30h 658000 27h 824000 61h 164700 41h 424000 31h 664000 2ch 829000 68h 203500 32h 427000 32h 669000 2dh 834000 6eh 353000 19h 429000 33h 699000 2eh 839000 75h 356000 1ah 432000 34h 704000 30h 844000 7eh 359000 1bh 434000 35h 709000 31h 849000 82h 363000 1ch 437000 36h 714000 32h 854000 84h 366000 1dh 439000 37h 724000 33h 859000 8fh 369000 1eh 442000 38h 729000 36h 865000 9ah
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 48 of 69 nxp semiconductors tda18271hd silicon tuner ic [1] used in ?owcharts. 373000 1fh 444000 39h 739000 38h - - 376000 20h 447000 3ah 744000 39h - - 379000 21h 449000 3bh 749000 3bh - - table 50. rf_cal_dc_over_dt_map continued f rf(max) (khz) dcoverdt [1] f rf(max) (khz) dcoverdt [1] f rf(max) (khz) dcoverdt [1] f rf(max) (khz) dcoverdt [1] table 51. rf_cal_map f rf(max) (khz) cprog_ table f rf(max) (khz) cprog_ table f rf(max) (khz) cprog_ table f rf(max) (khz) cprog_ table f rf(max) (khz) cprog_ table f rf(max) (khz) cprog_ table 41000 0fh 127000 6eh 208000 0fh 370000 58h 521000 20h 740000 69h 43000 1ch 128000 70h 212000 10h 372000 59h 525000 21h 741000 6ah 45000 2fh 129000 71h 216000 11h 375000 5ah 529000 22h 742000 6bh 46000 39h 130000 75h 217000 12h 376000 5bh 533000 23h 743000 6ch 47000 40h 131000 77h 218000 13h 377000 5ch 539000 24h 745000 6dh 47900 50h 132000 78h 220000 14h 379000 5dh 541000 25h 747000 6eh 49100 16h 133000 7bh 222000 15h 382000 5eh 547000 26h 748000 6fh 50000 18h 134000 7eh 225000 16h 384000 5fh 549000 27h 750000 70h 51000 20h 135000 81h 228000 17h 385000 60h 551000 28h 752000 71h 53000 28h 136000 82h 231000 18h 386000 61h 556000 29h 754000 72h 55000 2bh 137000 87h 234000 19h 388000 62h 561000 2ah 757000 73h 56000 32h 138000 88h 235000 1ah 390000 63h 563000 2bh 758000 74h 57000 35h 139000 8dh 236000 1bh 393000 64h 565000 2ch 760000 75h 58000 3eh 140000 8eh 237000 1ch 394000 65h 569000 2dh 763000 76h 59000 43h 141000 91h 240000 1dh 396000 66h 571000 2eh 764000 77h 60000 4eh 142000 95h 242000 1eh 397000 67h 577000 2fh 766000 78h 61100 55h 143000 9ah 244000 1fh 398000 68h 580000 30h 767000 79h 63000 0fh 144000 9dh 247000 20h 400000 69h 582000 31h 768000 7ah 64000 11h 145000 a1h 249000 21h 402000 6ah 584000 32h 773000 7bh 65000 12h 146000 a2h 252000 22h 403000 6bh 588000 33h 774000 7ch 66000 15h 147000 a4h 253000 23h 407000 6ch 591000 34h 776000 7dh 67000 16h 148000 a9h 254000 24h 408000 6dh 596000 35h 777000 7eh 68000 17h 149000 aeh 256000 25h 409000 6eh 598000 36h 778000 7fh 70000 19h 150000 b0h 259000 26h 410000 6fh 603000 37h 779000 80h 71000 1ch 151000 b1h 262000 27h 411000 70h 604000 38h 781000 81h 72000 1dh 152000 b7h 264000 28h 412000 71h 606000 39h 783000 82h 73000 1fh 152600 bdh 267000 29h 413000 72h 612000 3ah 784000 83h 74000 20h 154000 20h 269000 2ah 414000 73h 615000 3bh 785000 84h 75000 21h 155000 22h 271000 2bh 417000 74h 617000 3ch 786000 85h 76000 24h 156000 24h 273000 2ch 418000 75h 621000 3dh 793000 86h 77000 25h 157000 25h 275000 2dh 420000 76h 622000 3eh 794000 87h 78000 27h 158000 27h 277000 2eh 422000 77h 625000 3fh 795000 88h 80000 28h 159000 29h 279000 2fh 423000 78h 632000 40h 797000 89h
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 49 of 69 nxp semiconductors tda18271hd silicon tuner ic 81000 29h 160000 2ch 282000 30h 424000 79h 633000 41h 799000 8ah 82000 2dh 161000 2dh 284000 31h 427000 7ah 634000 42h 801000 8bh 83000 2eh 163000 2eh 286000 32h 428000 7bh 642000 43h 802000 8ch 84000 2fh 164000 2fh 287000 33h 429000 7dh 643000 44h 803000 8dh 85000 31h 164700 30h 290000 34h 432000 7fh 647000 45h 804000 8eh 86000 33h 166000 11h 293000 35h 434000 80h 650000 46h 810000 90h 87000 34h 167000 12h 295000 36h 435000 81h 652000 47h 811000 91h 88000 35h 168000 13h 297000 37h 436000 83h 657000 48h 812000 92h 89000 37h 169000 14h 300000 38h 437000 84h 661000 49h 814000 93h 90000 38h 170000 15h 303000 39h 438000 85h 662000 4ah 816000 94h 91000 39h 172000 16h 305000 3ah 439000 86h 665000 4bh 817000 96h 93000 3ch 173000 17h 306000 3bh 440000 87h 667000 4ch 818000 97h 94000 3eh 174000 18h 307000 3ch 441000 88h 670000 4dh 820000 98h 95000 3fh 175000 1ah 310000 3dh 442000 89h 673000 4eh 821000 99h 96000 40h 176000 1bh 312000 3eh 445000 8ah 676000 4fh 822000 9ah 97000 42h 178000 1dh 315000 3fh 446000 8bh 677000 50h 828000 9bh 99000 45h 179000 1eh 318000 40h 447000 8ch 681000 51h 829000 9dh 100000 46h 180000 1fh 320000 41h 448000 8eh 683000 52h 830000 9fh 102000 48h 181000 20h 323000 42h 449000 8fh 686000 53h 831000 a0h 103000 4ah 182000 21h 324000 43h 450000 90h 688000 54h 833000 a1h 105000 4dh 183000 22h 325000 44h 452000 91h 689000 55h 835000 a2h 106000 4eh 184000 24h 327000 45h 453000 93h 691000 56h 836000 a3h 107000 50h 185000 25h 331000 46h 454000 94h 695000 57h 837000 a4h 108000 51h 186000 26h 334000 47h 456000 96h 698000 58h 838000 a6h 110000 54h 187000 27h 337000 48h 457800 98h 703000 59h 840000 a8h 111000 56h 188000 29h 339000 49h 461000 11h 704000 5ah 842000 a9h 112000 57h 189000 2ah 340000 4ah 468000 12h 705000 5bh 845000 aah 113000 58h 190000 2ch 341000 4bh 472000 13h 707000 5ch 846000 abh 114000 59h 191000 2dh 343000 4ch 473000 14h 710000 5dh 847000 adh 115000 5ch 192000 2eh 345000 4dh 474000 15h 712000 5eh 848000 aeh 116000 5dh 193000 2fh 349000 4eh 481000 16h 717000 5fh 852000 afh 117000 5fh 194000 30h 352000 4fh 486000 17h 718000 60h 853000 b0h 119000 60h 195000 33h 353000 50h 491000 18h 721000 61h 858000 b1h 120000 64h 196000 35h 355000 51h 498000 19h 722000 62h 860000 b2h 121000 65h 198000 36h 357000 52h 499000 1ah 723000 63h 861000 b3h 122000 66h 200000 38h 359000 53h 501000 1bh 725000 64h 862000 b4h 123000 68h 201000 3ch 361000 54h 506000 1ch 727000 65h 863000 b6h 124000 69h 202000 3dh 362000 55h 511000 1dh 730000 66h 864000 b8h 125000 6ch 203500 3eh 364000 56h 516000 1eh 732000 67h 865000 b9h 126000 6dh 206000 0eh 368000 57h 520000 1fh 735000 68h - - table 51. rf_cal_map continued f rf(max) (khz) cprog_ table f rf(max) (khz) cprog_ table f rf(max) (khz) cprog_ table f rf(max) (khz) cprog_ table f rf(max) (khz) cprog_ table f rf(max) (khz) cprog_ table
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 50 of 69 nxp semiconductors tda18271hd silicon tuner ic table 52. thermometer_map bit tm_on must be set to logic 1. tm_d[3:0] tmvalue (die temperature) tm_range = 0 tm_range = 1 0000 60 c92 c 0001 62 c94 c 0010 66 c98 c 0011 64 c96 c 0100 74 c 106 c 0101 72 c 104 c 0110 68 c 100 c 0111 70 c 102 c 1000 90 c 122 c 1001 88 c 120 c 1010 84 c 116 c 1011 86 c 118 c 1100 76 c 108 c 1101 78 c 110 c 1110 82 c 114 c 1111 80 c 112 c table 53. ir_meas_map f rf(max) (khz) ir_meas[2:0] 200 101 600 110 865 111 table 54. cid_target_map f rf(max) cid_target count_limit 46000 4 1800 52200 a 1500 70100 1 4000 136800 18 156700 18 186250 a 230000 a 345000 18 426000 e 489500 1e 697500 32 842000 3a
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 51 of 69 nxp semiconductors tda18271hd silicon tuner ic 10. internal circuitry table 55. internal circuits symbol pin description [1] average dc voltage fm_in 8 0.8 v rf_in 10 0.8 v caprfagc 12 2.8 v lt 13 0.85 v sto 15 0.85 v capregvco 17 2.8 v (normal mode); 0 v (standby mode) 001aaf836 8 001aaf837 10 001aaf838 12 001aaf839 13 001aaf840 15 001aaf841 17
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 52 of 69 nxp semiconductors tda18271hd silicon tuner ic mastersync 19 0.5 v cc capfiltvco 20 1.6 v (normal mode); 0 v (standby mode) vt_coarse 21 0.5 v cc vt_fine 22 0.5 v cc cp_lo 24 0.5 v cc xtalp 26 1.45 v xtaln 27 1.45 v table 55. internal circuits continued symbol pin description [1] average dc voltage 001aaf842 19 001aaf843 20 001aaf844 21 001aaf845 22 001aaf846 24 001aaf847 26 001aaf848 27
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 53 of 69 nxp semiconductors tda18271hd silicon tuner ic freeze 28 3.3 v xtout_ms 29 high-z xtoutp 30 2.4 v xtoutn 31 2.4 v as 32 high-z cp_cal 34 3.3 v (normal mode); 0.5 v cc (calibration mode) vt_cal 35 3.3 v (normal mode); 0.5 v cc (calibration mode) table 55. internal circuits continued symbol pin description [1] average dc voltage 001aaf849 28 001aaf850 29 001aaf851 30 001aaf852 31 001aaf853 32 001aaf854 34 001aaf855 35
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 54 of 69 nxp semiconductors tda18271hd silicon tuner ic scl 38 high-z sda 39 high-z capreg18 40 1.8 v (normal mode); 2.0 v (sleep mode) capreg28 42 2.8 v (normal mode); 2.4 v (sleep mode) ifoutn 45 1.35 v ifoutp 46 1.35 v table 55. internal circuits continued symbol pin description [1] average dc voltage 001aaf856 38 001aaf857 39 001aaf858 40 001aaf859 42 001aaf860 45 001aaf861 46
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 55 of 69 nxp semiconductors tda18271hd silicon tuner ic [1] esd protection components are not shown. 11. limiting values [1] the tda18271hd withstands the latch-up speci?cations of jedec jesd78a, with the speci?c recommendation using coupling capacitors on pins rf_in, lt, sto, xtoutp and xtoutn. 12. thermal characteristics [1] the junction temperature can be obtained with the formula t j =t amb +r th(j-a) v cc i cc , where r th(j-a) is the thermal resistance of the application. r th(j-a) must be such that the resulting t j does not exceed the maximum value de?ned in t ab le 56 . v_ifagc 47 high-z vsync 51 high-z capregfiltrf 52 2.8 v (normal mode); 0 v (sleep mode) table 55. internal circuits continued symbol pin description [1] average dc voltage 001aaf862 47 001aaf863 51 001aaf864 52 table 56. limiting values in accordance with the absolute maximum rating system (iec 60134). [1] symbol parameter conditions min max unit v cc supply voltage - 0.3 +3.6 v v i input voltage pins sda and scl - 0.3 +5.5 v all other pins v cc < 3.3 v - 0.3 v cc + 0.3 v v cc > 3.3 v - 0.3 +3.6 v t stg storage temperature - 40 +150 c t j junction temperature - 110 c v esd electrostatic discharge voltage hbm: eia/jesd22-a114 2000 - v mm: eia/jesd22-a115 200 - v table 57. thermal characteristics [1] symbol parameter conditions typ unit r th(j-c) thermal resistance from junction to case according to jedec speci?cation 19.6 k/w
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 56 of 69 nxp semiconductors tda18271hd silicon tuner ic 13. characteristics all data in this section refers to master mode operation [1] channel loading assumptions: 129 channels (ntsc 129 frequency plan) at 75 db m v. table 58. loop-through characteristics (rf input to loop-through output) t amb = 25 c; v cc = 3.3 v; for test circuit see figure 27 ; unless otherwise speci?ed. symbol parameter conditions min typ max unit f rf(lt) loop-through rf frequency center of channel 45 - 864 mhz vswr voltage standing wave ratio loop-through output; 75 w nominal impedance --3 g v(lt) loop-through voltage gain 75 w load - 1.5 - db d g lt loop-through gain variation in the rf frequency range; 75 w load -3-db nf lt loop-through noise ?gure standby mode with lt, sto and crystal oscillator on - 6.5 - db cso composite second-order distortion [1] - - 60 - dbc ctb composite triple beat [1] - - 63 - dbc a isol(bp) bypass isolation from loop-through output to rf input -24-db v l(tun-lto) leakage voltage between tuner and loop-through output in rf tv band - 5 - db m v table 59. slave tuner output characteristics (pin sto) t amb = 25 c; v cc = 3.3 v; for test circuit see figure 27 ; unless otherwise speci?ed. symbol parameter conditions min typ max unit f rf(sto) rf frequency on pin sto 45 - 864 mhz z o(sto) output impedance on pin sto 30 35 40 w g v(sto) voltage gain on pin sto 75 w source resistance on rf input; z i =35 w (75 w , vswr = 2) power_level[6:5] = 00 - 6 - db power_level[6:5] = 01 - 9 - db power_level[6:5] = 10 - 12 - db power_level[6:5] = 11 - 15 - db
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 57 of 69 nxp semiconductors tda18271hd silicon tuner ic table 60. general characteristics for tv reception (rf input to if output) t amb = 25 c; v cc = 3.3 v; if output level option 2 v (p-p); if output load = 1 k w on each terminal; for test circuit see figure 27 ; unless otherwise speci?ed. symbol parameter conditions min typ max unit supply v cc supply voltage 3.13 3.30 3.47 v i cc supply current normal mode 180 235 290 ma standby mode with lt, sto and crystal oscillator on (default at por) 40 51 65 ma standby mode with only crystal oscillator and its output on 10 15 20 ma device off mode 1 2 5 ma ppower dissipation - 780 - mw t amb ambient temperature 0- 70 c input f rf rf frequency center of channel 45 - 864 mhz vswr voltage standing wave ratio rf input; 75 w nominal impedance -2- - nf tun tuner noise ?gure maximum gain - 5.5 - db g v(tun)max maximum tuner voltage gain 2 v (p-p) if output selection - 83 - db d g agc(tun) tuner agc gain range -71- db v i(max) maximum input voltage 1 db gain compression, one analog tv signal at rf input ( - 5 dbm) - 103 - db m v v l(tun-rf) leakage voltage between tuner and rf at rf input; in rf band - 0 - db m v output v o(if)dif(p-p) peak-to-peak differential if output voltage if_level[2:0] = 000 - 2 - v if_level[2:0] = 001 - 1.25 - v if_level[2:0] = 010 - 1 - v if_level[2:0] = 110 - 0.6 - v if_level[2:0] = 111 - 0.5 - v z o(if) if output impedance differential mode; magnitude value - 100 - w d g agc(if) if agc gain range 2 v (p-p) if output voltage selection -30- db g tlt tilt gain rf frequency range; 6/7/8 mhz channel -24 db
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 58 of 69 nxp semiconductors tda18271hd silicon tuner ic [1] measured with tda10048hn channel decoder. [2] measured with tda8295 if modulator. f if(stpb)lp low-pass stop-band if frequency 60 db attenuation 6 mhz if ?lter - 14 - mhz 7 mhz if ?lter - 16 - mhz 8 mhz if ?lter - 18 - mhz a image image rejection - 65 - db t d(grp) group delay time analog tv; difference between f1 and f2 in if std b; f1 = 1.57 mhz; f2 = 6 mhz - 130 - ns std g; f1 = 2.67 mhz; f2 = 7.1 mhz -36- ns std m/n; f1 = 1.82 mhz; f2 = 5.4 mhz -92- ns t ripple ripple time digital tv; difference between f1 and f2 in digital channel atsc 6 mhz; f1 = 0.75 mhz; f2 = 5.75 mhz - 395 - ns dvb-t 6 mhz; f1 = 0.8 mhz and f2 = 5.8 mhz - 365 - ns dvb-t 7 mhz; f1 = 0.5 mhz and f2 = 6.5 mhz - 478 - ns dvb-t 8 mhz; f1 = 0.5 mhz and f2 = 7.5 mhz - 515 - ns qam 6 mhz; f1 = 1.5 mhz and f2 = 6.5 mhz - 155 - ns qam 8 mhz; f1 = 1.5 mhz and f2 = 8.5 mhz - 180 - ns j n phase noise 1 khz and 10 khz; see figure 23 - - 89 - dbc/hz various t startup(tun) tuner start-up time at power up - 1.5 - s t set setting time channel change - 20 - ms s dig digital sensitivity dvb-t (64 qam 2 3 ); ber = 2.10 - 4 [1] - - 82 - dbm s a analog sensitivity 50 db video snr weighted 22 db m v (color loss) [2] -58- db m v table 60. general characteristics for tv reception (rf input to if output) continued t amb = 25 c; v cc = 3.3 v; if output level option 2 v (p-p); if output load = 1 k w on each terminal; for test circuit see figure 27 ; unless otherwise speci?ed. symbol parameter conditions min typ max unit
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 59 of 69 nxp semiconductors tda18271hd silicon tuner ic table 61. general characteristics for fm radio reception (fm input to if output) v cc = 3.3 v; t amb = 25 c; if output load of 1 k w on each terminal; for test circuit see figure 27 ; unless otherwise speci?ed. symbol parameter conditions min typ max unit supply i cc supply current fm mode with loop-through, slave tuner output and crystal oscillator on (default at por) - 265 315 ma input f rf rf frequency 65 - 108 mhz vswr voltage standing wave ratio 75 w nominal impedance - 2 - output f o output frequency if - 1 - mhz v o(p-p) peak-to-peak output voltage if_level[2:0] = 000 - 2.0 - v if_level[2:0] = 001 - 1.25 - v if_level[2:0] = 010 - 1.0 - v if_level[2:0] = 111 - 0.5 - v a isol(bp) bypass isolation in fm band between pins rf_in and pin fm_in -32-db table 62. characteristics of terminals t amb = 25 c; v cc = 3.3 v; 2.2 nf on input pin v_ifagc; for test circuit see figure 27 ; unless otherwise speci?ed. symbol parameter conditions min typ max unit if agc input: pin v_ifagc v agc agc voltage 0 - v cc v z i input impedance - high-z - w dg agc /dv rate of change of agc gain with voltage - 30 55 db/v crystal oscillator f xtal crystal frequency 15.99 16 16.01 mhz z i input impedance magnitude value; master mode - 500 - w crystal oscillator output buffer; pins xtoutp and xtoutn r o output resistance 16 mhz output frequency - 460 - w v o(p-p) peak-to-peak output voltage 10 k w //10 pf ac load - 0.4 - v sr r slew rate of rising signal 10 k w //10 pf ac load - 40 - v/ m s sr f slew rate of falling signal 10 k w //10 pf ac load - 40 - v/ m s
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 60 of 69 nxp semiconductors tda18271hd silicon tuner ic [1] devices that use non-standard supply voltages, which do not conform to the intended i 2 c-bus system levels, must relate their input levels to the supply voltage to which the pull-up resistors are connected. i 2 c-bus [1] pin scl v il low-level input voltage ?xed input levels - - 1.5 v v dd related input levels - - 0.3v dd v v ih high-level input voltage ?xed input levels 3 - - v v dd related input levels 0.7v dd --v f scl scl clock frequency - - 400 khz pin sda v oh high-level output voltage i sda = 3 ma (sink current) - - 0.4 v v il low-level input voltage ?xed input levels - - 1.5 v v dd related input levels - - 0.3v dd v v ih high-level input voltage ?xed input levels 3 - - v v dd related input levels 0.7v dd --v (1) offset is 1 khz (2) offset is 10 khz (3) offset is 100 khz fig 23. typical phase noise curve table 62. characteristics of terminals continued t amb = 25 c; v cc = 3.3 v; 2.2 nf on input pin v_ifagc; for test circuit see figure 27 ; unless otherwise speci?ed. symbol parameter conditions min typ max unit f rf (mhz) 40 940 540 840 740 640 340 440 240 140 001aah561 - 100 - 90 - 110 - 80 - 70 j n (dbc/hz) - 120 (2) (3) (1)
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 61 of 69 nxp semiconductors tda18271hd silicon tuner ic (1) 1.5 mhz bandwidth ?lter (2) 6 mhz bandwidth ?lter (3) 7 mhz bandwidth ?lter (4) 8 mhz bandwidth ?lter (5) 9 mhz bandwidth ?lter fig 24. typical if selectivity curves f if (mhz) - 3 19 13 5 117 9 001aah562 - 50 - 60 - 30 - 40 - 20 - 10 0 selectivity (db) - 70 (5) (4) (2) (3) (1)
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 62 of 69 nxp semiconductors tda18271hd silicon tuner ic 14. application information 14.1 application examples 14.2 application notes application notes are available for the following: ? analog and digital front end: see application note an605 ? analog front end: see application note an602 ? dual tuner application for pctv: see application note an604 fig 25. example of dvb-t dual tuner reception for pctv applications 001aah040 3.3 v 1.2 v 3.3 v i 2 c-bus ts rf rf lt sto rf ifoutp ifoutn v_ifagc i 2 c-bus (gated) v_ifagc freeze mastersync xtoutn xtoutp i 2 c-bus (gated) xtal tv surge protection surge protection channel demodulator tda10048hn silicon tuner tda18271hd (master) 3.3 v 1.2 v 3.3 v i 2 c-bus ts ifoutp ifoutn channel demodulator tda10048hn silicon tuner tda18271hd (slave) fig 26. example of hybrid reception for pctv applications 001aag457 tv fm radio v_ifagc tuner tda18271hd ifoutp ifout ifoutn vsync mpeg2 transport stream cvbs ssif pci-bus cb filter audio and video decoder with pci interface (saa713x) xtal dvb-t channel decoder (tda1004x) if demodulator (tda8295)
xxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x xxxxxxxxxxxxxx xxxxxxxxxx xxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx xxxxxxxxxxxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxx x x tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 63 of 69 nxp semiconductors tda18271hd silicon tuner ic 15. test information fig 27. test circuit 001aah560 r107 r108 y1 470 w 390 w r118 r116 r117 150 k w 470 w 56 w cp_lo c112 6.8 nf 16 mhz c113 33 pf c129 5.6 pf c200 33 pf c111 1 nf c110 220 nf tda18271hd gnd 64 62 63 60 61 58 59 56 57 54 55 52 53 xoutn_m v_ifagc_m 50 49 48 51 18 17 20 19 22 21 24 23 26 25 28 27 30 29 32 31 gnd gnd gnd gnd gnd gnd gnd gnd gnd gnd gnd gnd capregfiltrf vsync tp104 vsync_m gnd gnd gnd gnd gnd gnd gnd gnd gnd 47 v_ifagc 46 ifoutp 45 ifoutn 44 43 42 41 40 39 38 37 36 35 34 33 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 vcc gnd capreg28 gnd capreg18 sda scl sda scl gnd gnd vt_cal cp_cal vcc fm_in fmin_m vcc rf_in rfin_m gnd caprfagc lt gnd c128 47 nf c102 1 nf_5 % 1 nf_5 % 1 nf_5 % vcc1 lt_m vcc2 vcc3 vcc2 vcc2 c103 220 nf c101 1 nf_5 % j102 j101 j109 ifoutp j108 j106 c105 47 nf c117 47 nf c123 47 nf c120 220 nf c119 3.9 nf c118 6.8 nf c122 100 nf c121 c125 c115 4.7 nf xoutp_m xoutp_m tp103 c114 4.7 nf c127 100 nf r114 r115 470 w 56 w r113 120 w r112 390 w ifoutn j107 c124 100 nf c116 150 pf 100 nf c126 2.2 nf st1 c108 47 nf c107 100 nf c109 100 nf sto sp_m vcc vcc mastersync capfiltvco vt_coarse vt_fine gnd gnd xtalp xtaln r105 39 w r111 r106 capregvco freeze xtout_ms xtoutp xtoutn as c104 j103 sp_m sp_m rfin_s r104 n.c. c106 j104 master sync mastersync j105 10 nf caprfagc tp101 freeze freeze_cmot tp102 sda scl vcc3.3 vcc3.3 j1 r1 2.2 k w r2 2.2 k w 1 2 3 4 5 6 scl gnd sda vcc3.3 r102 r101
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 64 of 69 nxp semiconductors tda18271hd silicon tuner ic 16. package outline fig 28. package outline sot903-1 (hlqfn64r) references outline version european projection issue date iec jedec jeita sot903-1 sot903-1 06-03-29 07-11-14 unit a max mm 1.7 0.3 0.2 9.1 8.9 9.1 8.9 2.92 2.82 0.31 0.21 0.45 0.40 0.18 0.08 b dimensions (mm are the original dimensions) hlqfn64r; plastic thermal enhanced low profile quad flat package; no leads; 64 terminals; resin based; body 9 9 1.6 mm d d h 0.86 0.76 d j 3.32 3.22 d k 1.79 1.69 d l 2.16 2.06 d m e e h 0.69 0.59 e j 1.79 1.69 e k 0.79 0.69 e l 2.63 2.53 e m 2.02 1.92 e n e e 1 e 2 7.5 7.5 0.5 l l 1 v 0.1 w y 0.05 0.05 y 1 0.1 0 2.5 5 mm scale - - - - - - - - - b a terminal 1 index area d e c y c y 1 x a detail x b terminal 1 index area e 1 e 1/2 e e 2 e 1/2 e a c b v m c w m l 1 l e h e j e l e k e m e n d h d j d k d l d m 1 17 16 32 33 48 49 64
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 65 of 69 nxp semiconductors tda18271hd silicon tuner ic 17. printed-circuit board 17.1 re?ow pro?le see application note an10366 . 17.2 de-soldering recommendation see application note an10366 .
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 66 of 69 nxp semiconductors tda18271hd silicon tuner ic 17.3 footprint layout fig 29. footprint hlqfn64r (sot903-1) dimensions in mm a x a y b x b y dh x sl x sl x1 sl y sl y1 sp x sp x1 sp x2 sp y 9.000 9.000 7.880 7.880 p 0.500 0.250 c 0.555 9.500 h y 9.500 4.610 1.740 3.220 0.640 0.800 2.065 0.3 0.7 sp y1 0.3 v y2 v y3 0.8 0.9 v x v y1 0.8 0.9 v d v d1 0.35 0.5 dp 1/2 p b x h x h y a x b y a y 0.065 sl y1 sl y 0.12 sp y v y2 v y1 sp y1 v d1 v x sp x2 sp x1 sl x1 sl x c solder resist occupied area solder lands solder paste v d v y3 sp x
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 67 of 69 nxp semiconductors tda18271hd silicon tuner ic 18. abbreviations 19. revision history table 63. abbreviations acronym description agc automatic gain control ber bit error rate cb citizens band cp charge pump dvb-t digital video broadcasting - terrestrial dvd-r digital versatile disk-recordable esd electrostatic discharge hbm human body model if intermediate frequency lna low noise ampli?er lo local oscillator lt loop-through mm machine model pctv personal computer television pll phase-locked loop qam quadrature amplitude modulation rohs restriction of hazardous substances saw surface acoustic wave snr signal-to-noise ratio ts transport stream vco voltage controlled oscillator table 64. revision history document id release date data sheet status change notice supersedes tda18271hd_3 20080911 product data sheet - tda18271hd_2 modi?cations: ? t ab le 18 : added row with value 110 ? t ab le 60 : added row with condition if_level[2:0] = 110 tda18271hd_2 20080306 product data sheet - tda18271hd_1 modi?cations: ? section 9.4 i 2 c-bus programming ?owcharts: updated for tda18271hd/c2 tda18271hd_1 20070806 product data sheet - -
tda18271hd_3 ? nxp b.v. 2008. all rights reserved. product data sheet rev. 03 11 september 2008 68 of 69 nxp semiconductors tda18271hd silicon tuner ic 20. legal information 20.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term short data sheet is explained in section de?nitions. [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple dev ices. the latest product status information is available on the internet at url http://www .nxp .com . 20.2 de?nitions draft the document is a draft version only. the content is still under internal review and subject to formal approval, which may result in modi?cations or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. short data sheet a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request via the local nxp semiconductors sales of?ce. in case of any inconsistency or con?ict with the short data sheet, the full data sheet shall prevail. 20.3 disclaimers general information in this document is believed to be accurate and reliable. however, nxp semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. right to make changes nxp semiconductors reserves the right to make changes to information published in this document, including without limitation speci?cations and product descriptions, at any time and without notice. this document supersedes and replaces all information supplied prior to the publication hereof. suitability for use nxp semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an nxp semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. nxp semiconductors accepts no liability for inclusion and/or use of nxp semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customers own risk. applications applications that are described herein for any of these products are for illustrative purposes only. nxp semiconductors makes no representation or warranty that such applications will be suitable for the speci?ed use without further testing or modi?cation. limiting values stress above one or more limiting values (as de?ned in the absolute maximum ratings system of iec 60134) may cause permanent damage to the device. limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the characteristics sections of this document is not implied. exposure to limiting values for extended periods may affect device reliability. terms and conditions of sale nxp semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www .nxp .com/pro? le/ter ms , including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by nxp semiconductors. in case of any inconsistency or con?ict between information in this document and such terms and conditions, the latter will prevail. no offer to sell or license nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. quick reference data the quick reference data is an extract of the product data given in the limiting values and characteristics sections of this document, and as such is not complete, exhaustive or legally binding. 20.4 trademarks notice: all referenced brands, product names, service names and trademarks are the property of their respective owners. i 2 c-bus logo is a trademark of nxp b.v. silicon tuner is a trademark of nxp b.v. 21. contact information for more information, please visit: http://www .nxp.com for sales of?ce addresses, please send an email to: salesad dresses@nxp.com document status [1] [2] product status [3] de?nition objective [short] data sheet development this document contains data from the objective speci?cation for product development. preliminary [short] data sheet quali?cation this document contains data from the preliminary speci?cation. product [short] data sheet production this document contains the product speci?cation.
nxp semiconductors tda18271hd silicon tuner ic ? nxp b.v. 2008. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com date of release: 11 september 2008 document identifier: tda18271hd_3 please be aware that important notices concerning this document and the product(s) described herein, have been included in section legal information. 22. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3.1 target applications . . . . . . . . . . . . . . . . . . . . . . 1 3.2 key bene?ts . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 quick reference data . . . . . . . . . . . . . . . . . . . . . 2 5 ordering information . . . . . . . . . . . . . . . . . . . . . 2 6 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 pinning information . . . . . . . . . . . . . . . . . . . . . . 4 7.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 8 functional description . . . . . . . . . . . . . . . . . . . 6 8.1 tv and fm reception . . . . . . . . . . . . . . . . . . . . 6 8.2 master and slave operation. . . . . . . . . . . . . . . . 6 8.3 tuner outputs . . . . . . . . . . . . . . . . . . . . . . . . . . 7 8.3.1 loop-through output . . . . . . . . . . . . . . . . . . . . . 7 8.3.2 slave tuner output. . . . . . . . . . . . . . . . . . . . . . . 7 8.4 crystal input mode . . . . . . . . . . . . . . . . . . . . . . 7 8.5 crystal output mode . . . . . . . . . . . . . . . . . . . . . 7 9 control interface . . . . . . . . . . . . . . . . . . . . . . . . 8 9.1 i 2 c-bus format, write/read mode . . . . . . . . . . 8 9.2 i 2 c-bus at power-on reset. . . . . . . . . . . . . . . . 11 9.3 description of symbols used in i 2 c-bus format table. . . . . . . . . . . . . . . . . . . . . . . . . . . 12 9.3.1 i 2 c-bus address selection. . . . . . . . . . . . . . . . 13 9.3.2 description of chip id byte . . . . . . . . . . . . . . . 14 9.3.3 description of temperature sensor byte . . . . . 14 9.3.4 description of power level byte (read mode) . 15 9.3.5 description of easy prog byte 1 . . . . . . . . . . . 15 9.3.6 description of easy prog byte 2 . . . . . . . . . . . 16 9.3.7 description of easy prog byte 3 . . . . . . . . . . . 16 9.3.8 description of easy prog byte 4 . . . . . . . . . . . 17 9.3.9 description of easy prog byte 5 . . . . . . . . . . . 18 9.3.10 description of cal post-divider byte . . . . . . . . 18 9.3.11 description of cal divider bytes 1, 2 and 3 . . . 18 9.3.12 description of main post-divider byte . . . . . . . 19 9.3.13 description of main divider bytes 1, 2 and 3. . 19 9.3.14 description of extended bytes 1 to 23 . . . . . . 19 9.4 i 2 c-bus programming ?owcharts . . . . . . . . . . 22 9.4.1 flowchart explanation. . . . . . . . . . . . . . . . . . . 22 9.4.2 flowchart tda18271setrf_dual . . . . . . . . . . 25 9.4.3 flowchart tda18271initcal . . . . . . . . . . . . . . 25 9.4.4 flowchart tda18271fixedcontentsi2cupdate 26 9.4.5 flowchart tda18271calcrffiltercurve . . . . 27 9.4.6 flowchart tda18271rftrackingfiltersinit . . . 29 9.4.7 flowchart tda18271powerscaninit . . . . . . . . 31 9.4.8 flowchart tda18271powerscan . . . . . . . . . . 31 9.4.9 flowchart tda18271calibraterf . . . . . . . . . 33 9.4.10 flowchart tda18271mspor . . . . . . . . . . . . 35 9.4.11 flowchart tda18271rftrackingfilters correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 9.4.12 flowchart tda18271channelcon?guration. . 37 9.4.13 flowchart tda18271calcmainpll . . . . . . . . 39 9.4.14 flowchart tda18271calccalpll . . . . . . . . . 39 9.4.15 flowchart tda18271thermometerread . . . . 40 9.4.16 flowchart tda18271read . . . . . . . . . . . . . . . 41 9.4.17 flowchart tda18271readextended . . . . . . . 42 9.5 maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 10 internal circuitry . . . . . . . . . . . . . . . . . . . . . . . 51 11 limiting values . . . . . . . . . . . . . . . . . . . . . . . . 55 12 thermal characteristics . . . . . . . . . . . . . . . . . 55 13 characteristics . . . . . . . . . . . . . . . . . . . . . . . . 56 14 application information . . . . . . . . . . . . . . . . . 62 14.1 application examples . . . . . . . . . . . . . . . . . . . 62 14.2 application notes . . . . . . . . . . . . . . . . . . . . . . 62 15 test information. . . . . . . . . . . . . . . . . . . . . . . . 63 16 package outline . . . . . . . . . . . . . . . . . . . . . . . . 64 17 printed-circuit board . . . . . . . . . . . . . . . . . . . . 65 17.1 re?ow pro?le . . . . . . . . . . . . . . . . . . . . . . . . . 65 17.2 de-soldering recommendation . . . . . . . . . . . . 65 17.3 footprint layout. . . . . . . . . . . . . . . . . . . . . . . . 66 18 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 67 19 revision history . . . . . . . . . . . . . . . . . . . . . . . 67 20 legal information . . . . . . . . . . . . . . . . . . . . . . 68 20.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 68 20.2 de?nitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 20.3 disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 68 20.4 trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 68 21 contact information . . . . . . . . . . . . . . . . . . . . 68 22 contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

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