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data sheet skyworks doc. no. 101134a proprietary information and specifications are subject to change march 5, 2002 CX74001 rx asic for cdma, amps, and pcs applications the CX74001 application-specific integrated circuit (asic) is a triple-mode, dual- band receiver (rx) intended for use in code division multiple access (cdma) portable phones in both cellular and personal communications system (pcs) bands, as well as advanced mobile phone system (amps) mode. the device is a highly integrated super-heterodyne receiver. it incorporates all the components required to implement the receiver chain, from the low-noise amplifier (lna) to the in-phase and quadrature (i/q) demodulator stages, except for the external surface acoustic wave (saw) filters and matching components. there are two internal low noise amplifiers (lnas). the cellular lna has three-step gain stages, and the pcs lna gain has a bypass feature. after rf signal amplification and filtering, the received signal is mixed down from rf to the intermediate frequency (if). there are separate mixers for amps, cdma, and pcs bands. the cdma cellular and pcs mixers have balanced outputs for the if saw filters, while the amps differential output can be combined externally to mate to a single-ended saw filter. after if filtering, the if signal is amplified by a variable gain amplifier (vga) and fed to an i/q demodulator resulting in baseband i/q signals at the output. the vga has a minimum dynamic range of 90 db with a control voltage range from 0.5 to 2.5 volts, and it is common to all modes. there are two vhf oscillators which operates with external tank circuits to provide local oscillator (lo) frequencies for the i/q demodulator in the cellular and pcs bands. the noise figure, gain, and third order input intercept point (iip3) of each stage in the receiver chip are optimized to meet the system requirements for amps and cdma modes as per tia/eia-98-c. employing bicmos technology, the asic is designed for low cost, high performance, and a high level of integration. the device package and pinout are shown in figure 1. a system block diagram of the CX74001 is shown in figure 2. distinguishing features ? supports single and dual-band, and tri-mode handsets ? battery cell operation (2.7 v < vcc < 3.3 v) ? dual low noise amplifiers (800 mhz / 1900 mhz) ? pcs lna with bypass feature ? three-step cellular lna gain ? i/q interface ? dual 200-600 mhz vhf oscillators ? vco on/off control for standby current optimization ? cdma single if feature ? 48-pin, 7 x 7 mm rf land grid array (rflga?) package with down-set paddle. applications ? cellular and pcs band phones ? cdma and amps modes in the cellular band ? amps ? cdma-us ? cdma-japan ? cdma mode in the pcs band ? pcs-us ? pcs-korea cnxt061 vcc_mix pcs_mixer_out+ pcs_mixer_out- amps_mix_out+ amps_mix_out- cdma_mix_out+ cdma_mix_out- pcs_vga_in+ pcs_vga_in- amps_vga_in cdma_vga_in+ cdma_vga_in- pcs_lna_bias_res cell_lna_ out nc pcs_lna_out cell_lna_bias_res rf_bias_res cell_mix_in pcs_mix_in pcsmix_bypass cell_lo pcs_lo vcc_if lna_ctrl1 pcs_lnain lna_ctrl0 cell_lna_in vcc_rf_bias cell_lna_emit cell/pcs fm/cdma vco_vcc vco_on cell_tank- cell_tank+ pcs_tank- pcs_tank+ lod pll+ pll- sif i- i+ q+ q- sleep vga_control 1 2 3 4 5 6 7 8 9 10 11 12 13 37 36 35 34 33 32 31 30 29 28 27 26 25 48 47 46 45 44 43 42 41 40 39 38 14 15 16 17 18 19 20 21 22 23 24 figure 1. CX74001 rx asic pin-out (top view)
CX74001 rx asic for cdma, amps, and pcs applications 2 skyworks 101134a proprietary information and specifications are subject to change march 5, 2002 2 cdma if saw pcs if saw rf saw (cell) rf saw (pcs) cell_lna_in pcs lna in vga_control 3 lod bias resistors (3) lna_ctrl0 vco_on bypass bypass lna_ctrl1 lna1 cell_lo amps if saw lna2 pcs_lo bias control fm cell/pcs sleep i+ q+ i- q- sif pll figure 2. CX74001 rx asic block diagram technical description low noise amplifiers (lnas) _________________________ the cellular band lna is designed with a low noise figure and high linearity to achieve receiver sensitivity and single-tone requirements. the cellular lna is a three-step gain lna designed to meet the inter-modulation distortion specifications in cdma per tia/eia 98-c. the pcs band lna is also designed to provide a low noise figure and high linearity to achieve receiver sensitivity and single-tone requirements. at high signal strength, it is preferable to bypass the lna completely, and the pcs lna supports this feature. mixers ____________________________________________ the CX74001 rx asic has three independent mixers, one for the pcs band and two for the cellular band (amps and cdma). the mixers are designed to operate with lo powers of ?10 dbm, typical. the cellular and pcs band mixers have a high gain and iip3, and a low noise figure that allow them to meet the system requirements with margin. the cellular cdma and pcs mixers have balanced output to drive the if saw filters. the differential outputs of the amps mixer are combined externally to mate to a single-ended input if saw filter. variable gain amplifier (vga) _________________________ the high dynamic range required by cdma handsets is achieved by the vga, which is common to all modes. it has three different inputs and the appropriate signal path is switched inside the chip. the vga has a dynamic range of 90 db with a control voltage of 0.5 to 2.5 volts. it has a low noise figure at maximum gain, which allows it to meet the system noise figure requirements. the balanced output is common for all the modes and is fed directly to the i/q demodulator. i/q demodulator_____________________________________ the vga stage is internally ac coupled to the i/q demodulator. the lo signals are derived from one of the on-chip vcos, then fed to a divider block that divides the vco frequency by two. the differential i and q outputs are designed specifically with a low dc output offset and a low phase and amplitude imbalance when cascaded with the baseband processor.
rx asic for cdma, amps, and pcs applications CX74001 101134a skyworks 3 march 5, 2002 proprietary information and specifications are subject to change voltage controlled oscillators (vcos)__________________ the active cores of the two vcos are present on the CX74001, requiring only differential external lc tanks and a pll synthesizer. the vco core current is automatically adjusted to give a constant vco output swing, regardless of the external tank q. mode control ______________________________________ the operation of the chip is controlled by signals cell/pcs, fm, and sleep. the single if (sif) is added to use a common if frequency for cdma mode in cellular and pcs band. this allows the use of one if saw filter for the pcs and cdma modes to reduce system implementation cost. the logic blocks are powered off of the vcc_if, so it must be present to obtain chip functionality. electrical and mechanical specifications. signal pin assignments and functional pin descriptions are described in table 1. the absolute maximum ratings of the CX74001 are provided in table 2. the recommended operating conditions are specified in table 3. electrical specifications are provided in table 4. tables 5, 6, 7, and 8 provide logic and mode control information for the CX74001. figures 3 through 46 provide typical performance characteristics. a schematic diagram of the CX74001 is provided in figure 47 and the package dimensions of the 48-pin rflga are shown in figure 48. esd sensitivity the CX74001 is a jedec class 1 device. the following extreme electrostatic discharge (esd) precautions are required according to the human body model (hbm): ? protective outer garments. ? handle device in esd safeguarded work area. ? transport device in esd shielded containers. ? monitor and test all esd protection equipment. the hbm esd withstand threshold value, with respect to ground, is 1.5 kv. the hbm esd withstand threshold value, with respect to vdd (the positive power supply terminal) is also 1.5 kv.
CX74001 rx asic for cdma, amps, and pcs applications 4 skyworks 101134a proprietary information and specifications are subject to change march 5, 2002 table 1. CX74001 pin assignments and signal descriptions (1 of 4) pin # name description equivalent circuit 1 lna_ctrl1 digital signal used in conjunction with pin 3 to control lna gain step. do not allow to float or leave unconnected vcc 2 pcs_lnain pcs lna input pin. high-q matching network should be used to minimize noise figure, and a dc blocking capacitor is required. 3 lna_ctrl0 digital signal used in conjunction with pin 1 to control lna gain step. do not allow to float or leave unconnected vcc 4 cell_lna_in cellular lna input pin. high-q matching network should be used to minimize noise figure, and a dc blocking capacitor is required. 5 vcc_rf_bias supply voltage to the rf bias (needed by all lna/mixer blo cks) . an rf bypass c apacitor should be connected from the pin to ground with minimal trace length. 6 cell_lna_emit ground directly to ground with minimum trace length. 7 cell/pcs digital signal used for band selection: 0 = cellular (800 mhz), 1 = pcs (1900 mhz). 8 fm/cdma digital signal used in cellular band for mode selection: 0 = amps, 1 = cdma. 9 vco_vcc voltage supply to the vco buffers. a bypass capacitor should be placed close to the device from pin 9 to ground with minimal trace length. 10 vco_on vco control signal to turn vco and pll buffer on/off during slotted paging modes, thereby increasing standby time. 11 cell_tank? differential tank cellular band vco pin. care should be taken during the layout of the external tank circuit to prevent parasitic oscillations. 12 cell_tank+ differential tank cellular band vco pin. care should be taken during the layout of the external tank circuit to prevent parasitic oscillations. 13 pcs_tank? differential tank pcs band vco pin. care should be taken during the layout of the external tank circuit to prevent parasitic oscillations. 14 pcs_tank+ differential tank pcs band vco pin. care should be taken during the layout of the external tank circuit to prevent parasitic oscillations. ? + 15 lod linearity on demand. it provides the bias control for the mixers, thereby reducing the chip current consumption at the expense of input ip3.
rx asic for cdma, amps, and pcs applications CX74001 101134a skyworks 5 march 5, 2002 proprietary information and specifications are subject to change table 1. CX74001 pin assignments and signal descriptions (2 of 4) pin # name description equivalent circuit 16 pll+ differential buffered vco output. ? + vcc vcc 17 pll? differential buffered vco output. 18 sif digital control signal for sif selection: 1 = sif, 0 = normal. 19 i? i channel differential output. 20 i+ i channel differential output. 21 q+ q channel differential output. 22 q? q channel differential output. 23 sleep digital signal used to activate the receiver asic: 0 = sleep, 1= enable. 24 vga_control analog gain control of the vga. typical 0.5 to 2.5 v to control vga dynamic range of greater than 90db. 25 vcc_if voltage supply to vga from i/q demodulator stages and logic blo cks. s upply should be bypassed to prevent signal modulation to the supply line. 26 cdma_vga_in? cdma differential vga input 27 cdma_vga_in+ cdma differential vga input ? + 28 amps_vga_in amps vga input 29 pcs_vga_in? pcs differential vga input 30 pcs_vga_in+ pcs differential vga input ? +
CX74001 rx asic for cdma, amps, and pcs applications 6 skyworks 101134a proprietary information and specifications are subject to change march 5, 2002 table 1. CX74001 pin assignments and signal descriptions (3 of 4) pin # name description equivalent circuit 31 cdma_mix_out? cdma differential cellular mixer open collector output. vcc pull up inductor is required, and the output impedance is set by an external matching network. 32 cdma_mix_out+ cdma differential cellular mixer open collector output. vcc pull up inductor is required, and the output impedance is set by an external matching network. 33 amps_mix_out? amps differential mixer open collector output. vcc pull up inductor is required, and the output impedance is set by an external matching network. 34 amps_mix_out+ amps differential mixer open collector output. vcc pull up inductor is required, and the output impedance is set by an external matching network. 35 pcs_mixer_out? pcs differential mixer open collector output. vcc pull up inductor is required, and the output impedance is set by an external matching network. 36 pcs_mixer_out+ pcs differential mixer open collector output. vcc pull up inductor is required, and the output impedance is set by an external matching network. ? + 37 vcc_mix voltage supply for the mixers. rf bypass capacitor should be close to pin with minimal trace length. 38 pcs_lo the local oscillator input for the pcs band mixer. 39 cell_lo the local oscillator input for the cellular band mixer. 40 pcsmix_bypass low frequency bypass for the pcs mixer. typically, a 47 nf is connected from pin to ground. 41 pcs_mix_in pcs mixer input. requires ac coupling capacitor 42 cell_mix_in cellular mixer input 43 rf_bias_res this sets the rf bias current. typically, a 15 k ? resistor is connected from the pin to ground. 44 cell_lna_bias_res this sets the cellular lna bias current. typically, 27 k ? is connected to ground.
rx asic for cdma, amps, and pcs applications CX74001 101134a skyworks 7 march 5, 2002 proprietary information and specifications are subject to change table 1. CX74001 pin assignments and signal descriptions (4 of 4) pin # name description equivalent circuit 45 pcs_lna_out pcs lna open collector output. vcc inductor pull up and external matching network are required. 46 nc no connection. 47 cell_lna_out cellular lna open collector output. vcc inductor pull up and external matching network are required. 48 pcs_lna_bias_res this set the pcs lna bias current. typically, a 220 ? resistor is connected from the pin to ground. table 2. absolute maximum ratings parameter minimum maximum units supply voltage (v cc ) ?0.3 +5.5 v input voltage range ?0.3 v cc v lna input power +5 dbm power dissipation 600 mw ambient operating temperature ?30 +80 c storage temperature ?40 +125 c table 3. recommended operating conditions parameter minimum typical maximum units supply voltage (vcc) 2.7 3.0 3.3 v operating temperature ?30 +25 +80 c impedance of logic inputs 50 k ? vil logic low input voltage 0.0 0.5 v vih logic high input voltage vcc ? 0.5 vcc v
CX74001 rx asic for cdma, amps, and pcs applications 8 skyworks 101134a proprietary information and specifications are subject to change march 5, 2002 table 4. CX74001 rx asic electrical specifications (1 of 3) (t a = 25 c, vcc = 3.0 v) parameter symbol test condition minimum typical maximum units 800 mhz lna cdma high gain 15.5 16 16.5 db medium gain 6 6.4 7 db low gain ?3 ?5 ?6 db noise figure @ high gain 1.6 1.8 db noise figure @ medium gain 2.8 4 db noise figure @ low gain 5 6.4 db input ip3 @ high gain 5 6 dbm input ip3 @ medium gain 10 15 dbm input ip3 @ low gain 20 22 dbm reverse isolation 18 20 db input return loss (869-894 mhz) ?10 ?15 db output return loss (869-894 mhz) ?10 ?12 db total supply current (adjustable) 8 8.5 ma 800 mhz lna amps gain @ 881 mhz 15 15.5 16 db noise figure 1.4 1.6 db input ip3 ?2 0 dbm reverse isolation 19 20 db input return loss ?10 ?15 db output return loss ?10 ?15 db total supply current 4.5 5 ma 1900 mhz lna gain 1 (high) 15 15.5 16 db gain 2 (lna bypass) ?5 ?4 ?3 db noise figure 1 (high) 1.8 2 db noise figure 2 (lna bypass) 4 5 db input ip3 1 (high gain) 2 3 dbm input ip3 (lna bypass) 20 21 dbm reverse isolation 19 20 db input return loss (1930-1990 mhz) ?8 ?12 db output return loss (1930-1990 mhz) ?10 ?12 db total supply current (adjustable) 7.5 10 ma
rx asic for cdma, amps, and pcs applications CX74001 101134a skyworks 9 march 5, 2002 proprietary information and specifications are subject to change table 4. CX74001 rx asic electrical specifications (2 of 3) (t a = 25 c, vcc = 3.0 v) parameter symbol test condition minimum typical maximum units 800 mhz mixer conversion gain (power): cdma mode amps mode 10 11 10.5 11.5 11 12 db db single-sideband noise figure: cdma mode amps mode 8.1 8.2 8.6 8.6 db db p1db @ input: cdma mode amps mode ?9.5 ?14 ?8 ?13 dbm dbm ip3 @ input: cdma mode amps mode 6 5 7.5 6 dbm dbm mixer rf input return loss (869-894 mhz) (rf port 1) ?10 ?14 db if output resistance: cdma (differential) amps (differential) 2000 1700 ? ? lo input power level ?10 ?5 0 dbm lo input return loss ?10 ?12 db if frequency range 50 300 mhz lo/rf isolation 18 20 db total supply current (mixer and lo buffer) cdma amps 18 12 22 16 ma ma 1900 mhz mixer (1930-1990 mhz) conversion gain (power) 10 11 11.5 db single-sideband noise figure 8 9.5 db p1db @ input ?12 ?10 dbm ip3 @ input 6 7 dbm rf input return loss (1930-1990 mhz) ?10 ?15 db lo input power level ?10 ?5 0 dbm lo input return loss (1600-2300 mhz) ?10 ?11 db if output resistance (differential) 1000 ? if frequency range 50 300 mhz total supply current (mixer and lo buffer) 18 20 ma
CX74001 rx asic for cdma, amps, and pcs applications 10 skyworks 101134a proprietary information and specifications are subject to change march 5, 2002 table 4. CX74001 rx asic electrical specifications (3 of 3) (t a = 25 c, vcc = 3.0 v) parameter symbol test condition minimum typical maximum units vga and iq cascaded performance input frequency range (-2 db) 50 300 mhz input impedance: cdma (differential) amps(single-ended) pcs (differential) 1000 1000 1000 ? ? ? cascaded noise figure: @ max gain @ min gain 5 50 7 db db vga control range 0.5 2.5 v gain: minimum (amps) minimum (cdma) minimum (pcs) maximum (amps) maximum (cdma) maximum (pcs) ?35 ?43 ?47.5 59 51 48 ?30 ?38 ?42.5 63 55 52 ?25 ?33 ?37.5 66 59 56 db db db db db db gain slope 30 45 70 db/v gain variation over signal bandwidth: cdma and pcs (1 khz-630 khz) amps (100 hz-15 khz) 0.2 0.2 0.55 0.55 db db gain variation over temperature and supply 2 db input 1 db compression at minimum gain ?10 ?8 dbm oip3 @ greater than 30 db gain 4 5.5 dbm output (1db compression) 1.25 vppd output common mode voltage variation over supply 0.9 1.8 v i-ib and q-qb dc offset 2 6 mv i-q gain mismatch 0.2 0.3 db i-q phase mismatch 2 4 degrees i-q dc offset 8 30 mv total supply current (vga, iq, dividers) cdma / pcs amps 9 12 10.5 14 ma ma oscillator frequency range 100 600 mhz phase noise (fc = 200 mhz, unloaded q = 20) @ 100 khz offset ?115 ?117 dbc/hz second harmonic distortion (application dependent) ?25 ?30 dbc total supply current 6 8 ma buffered vco output frequency range 100 600 mhz output level (peak differential) 120 150 mv output impedance (differential) 300 ? reverse isolation ?30 ?40 db total supply current 3 4 ma
rx asic for cdma, amps, and pcs applications CX74001 101134a skyworks 11 march 5, 2002 proprietary information and specifications are subject to change table 5. mode control select signal switching sleep cell/ pcs fm amps chain cell cdma chain pcs cdma chain 0 x x off (note 1) off (note 1) off (note 1) 1 0 0 on 1 0 1 on 1 1 x on key: 0 = low, off 1 = high, on x = do not care note 1 : all blocks except vco, which is i ndependently controlled by vco_on in this state. table 6. vco_on control (sif = 0) vco_on sleep cell/ pcs cellular vco pcs vco 1 x 0 on 1 x 1 on x 1 0 on x 1 1 on key: 0 = low, off 1 = high, on x = do not care table 7. sif control ? single if (sleep = 1) vga input sif cell/ pcs fm amps cdma pcs vco1 cell vco2 pcs 0 0 0 on on 0 0 1 on on 0 1 x on on 1 0 0 on on 1 0 1 on on 1 1 x on on key: 0 = low, off 1 = high, on x = do not care
CX74001 rx asic for cdma, amps, and pcs applications 12 skyworks 101134a proprietary information and specifications are subject to change march 5, 2002 table 8. logic control for lna gain step lna_ctrl0 lna_ctrl1 amps cell cdma pcs cdma 0 0 high high high 1 0 medium (note 1) medium bypass 0 1 bypass (note 1) bypass high 1 1 bypass (note 1) bypass bypass key: 0 = low, off 1 = high, on x = do not care note 1 : these modes are available but not used to meet the is-98 specifications. 8 9 10 11 12 13 14 15 16 17 18 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 3. pcs lna gain at 1960 mhz 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) iip3 (dbm) -30 deg c 25 deg c 85 deg c figure 5. pcs lna iip3 at 1960 mhz 0 0.5 1 1.5 2 2.5 3 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 4. pcs lna nf at 1960 mhz -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 6. pcs lna gain at 1960 mhz(bypass mode)
rx asic for cdma, amps, and pcs applications CX74001 101134a skyworks 13 march 5, 2002 proprietary information and specifications are subject to change 0 1 2 3 4 5 6 7 8 9 10 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) -30 deg c 25 deg c 85 deg c figure 7. pcs lna nf (bypass mode) 10 11 12 13 14 15 16 17 18 19 20 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 9. cell cdma lna gain at 881 mhz 0 1 2 3 4 5 6 7 8 9 10 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) iip3 (dbm) -30 deg c 25 deg c 85 deg c figure 11. cell cdma lna iip3 (high gain) at 881 mhz 15 16 17 18 19 20 21 22 23 24 25 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) -30 deg c 25 deg c 85 deg c figure 8. pcs lna iip3 (bypass mode) 0 0.5 1 1.5 2 2.5 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 10. cell cdma lna nf at 881 mhz 0 1 2 3 4 5 6 7 8 9 10 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 12. cell cdma lna gain (mid gain) at 881 mhz
CX74001 rx asic for cdma, amps, and pcs applications 14 skyworks 101134a proprietary information and specifications are subject to change march 5, 2002 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 13. cell cdma lna noise figure (mid gain) at 881 mhz -8 -7 -6 -5 -4 -3 -2 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 15. cell cdma lna gain (bypass mode) at 881 mhz 15 16 17 18 19 20 21 22 23 24 25 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) iip3 (dbm) -30 deg c 25 deg c 85 deg c figure 17 cell cdma lna iip3 (bypass mode) at 881 mhz 0 2 4 6 8 10 12 14 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) iip3 (dbm) -30 deg c 25 deg c 85 deg c figure 14. cell cdma lna iip3 (mid gain) at 881 mhz 0 1 2 3 4 5 6 7 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 16. cell cdma lna noise figure (bypass mode) at 881 mhz 10 11 12 13 14 15 16 17 18 19 20 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 18. amps lna gain at 881 mhz
rx asic for cdma, amps, and pcs applications CX74001 101134a skyworks 15 march 5, 2002 proprietary information and specifications are subject to change 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 19. amps lna noise figure at 881 mhz 0 2 4 6 8 10 12 14 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 21. pcs mixer gain at 1960 mhz 0 1 2 3 4 5 6 7 8 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) iip3 (dbm) -30 deg c 25 deg c 85 deg c figure 23. pcs mixer iip3 at 1960 mhz -5 -4 -3 -2 -1 0 1 2 3 4 5 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) iip3 (dbm) -30 deg c 25 deg c 85 deg c figure 20. amps lna iip3 at 881 mhz 0 2 4 6 8 10 12 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 22. pcs mixer noise figure at 1960 mhz 0 2 4 6 8 10 12 14 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 24. cell cdma mixer gain at 881 mhz
CX74001 rx asic for cdma, amps, and pcs applications 16 skyworks 101134a proprietary information and specifications are subject to change march 5, 2002 0 1 2 3 4 5 6 7 8 9 10 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 25. cell cdma mixer noise figure at 881 mhz 0 2 4 6 8 10 12 14 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 27. amps mixer gain at 881 mhz 0 1 2 3 4 5 6 7 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) iip3(dbm) -30 deg c 25 deg c 85 deg c figure 29. amps mixer iip3 at 881 mhz -4 -2 0 2 4 6 8 10 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) iip3 (dbm) -30 deg c 25 deg c 85 deg c figure 26. cell cdma mixer iip3 at 881 mhz 0 1 2 3 4 5 6 7 8 9 10 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) nf (db) -30 deg c 25 deg c 85 deg c figure 28. amps mixer noise figure at 881 mhz 40 42 44 46 48 50 52 54 56 58 60 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 30. pcs vga+iq gain (vcc = 2.5 v) at 210.38 mhz
rx asic for cdma, amps, and pcs applications CX74001 101134a skyworks 17 march 5, 2002 proprietary information and specifications are subject to change -45 -44 -43 -42 -41 -40 -39 -38 -37 -36 -35 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 31. pcs vga+iq gain (vcc = 0.5 v) at 210.38 mhz -50 -49 -48 -47 -46 -45 -44 -43 -42 -41 -40 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 33. pcs vga+i/q iip3 (vcc = 2.5 v) at 210.38 mhz 40 42 44 46 48 50 52 54 56 58 60 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 35. cell cdma vga+iq gain (vcc = 2.5 v) at 85.38 mhz 0 1 2 3 4 5 6 7 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 32. pcs vga+i/q noise figure (vcc = 2.5 v) at 210.38 mhz -40 -39 -38 -37 -36 -35 -34 -33 -32 -31 -30 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 34. cell cdma vga+iq gain (vcc = 0.5 v) at 85.38 mhz 0 1 2 3 4 5 6 7 8 9 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 36. cdma vga+i/q noise figure (vcc = 2.5 v) at 85.38 mhz
CX74001 rx asic for cdma, amps, and pcs applications 18 skyworks 101134a proprietary information and specifications are subject to change march 5, 2002 -55 -53 -51 -49 -47 -45 -43 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 37. cdma vga+i/q iip3 (vc = 2.5 v) at 85.38 mhz 50 52 54 56 58 60 62 64 66 68 70 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 39. amps vga+iq gain (vc = 2.5 v) at 85.38 mhz -60 -58 -56 -54 -52 -50 -48 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) iip3 (dbm) -30 deg c 25 deg c 85 deg c figure 41. amps vga+i/q iip3 (vc = 2.5 v) at 85.38 mhz -40 -38 -36 -34 -32 -30 -28 -26 -24 -22 -20 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) gain (db) -30 deg c 25 deg c 85 deg c figure 38. amps vga+iq gain (vc = 0.5 v) at 85.38 mhz 0 1 2 3 4 5 6 7 8 9 10 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) noise figure (db) -30 deg c 25 deg c 85 deg c figure 40. amps vga+i/q noise figure (vc = 2.5 v) at 85.38 mhz 0 10 20 30 40 50 60 70 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) current (ma) -30 deg c 25 deg c 85 deg c figure 42. supply current in pcs mode (lna bypassed)
rx asic for cdma, amps, and pcs applications CX74001 101134a skyworks 19 march 5, 2002 proprietary information and specifications are subject to change 0 10 20 30 40 50 60 70 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) current (ma) -30 deg c 25 deg c 85 deg c figure 43. supply current in pcs mode ( lna on) 0 10 20 30 40 50 60 70 2.5 2.7 2.9 3.1 3.3 3.5 vcc (v) current (ma) -30 deg c 25 deg c 85 deg c figure 45. supply current in cell cdma mode (lna bypassed) 0 10 20 30 40 50 60 70 2.5 2.7 2.9 3.1 3.3 3.5 vcc (v) current (ma) -30 deg c 25 deg c 85 deg c figure 44. supply current in cell cdma mode (lna on) 0 10 20 30 40 50 60 70 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 vcc (v) current (ma) -30 deg c 25 deg c 85 deg c figure 46. supply current in amps mode
CX74001 rx asic for cdma, amps, and pcs applications 20 skyworks 101134a proprietary information and specifications are subject to change march 5, 2002 vcc to cdma if saw filter input CX74001 37 36 35 34 33 32 31 30 29 28 27 26 25 1 2 3 4 5 6 7 8 9 10 12 11 13 15 16 17 18 19 20 21 22 23 24 14 pcs_lnain lna_ctrl1 lna_ctrl0 cell_lna_in vcc_rf_bias cell_lna_emit cell/pcs vco_vcc vco_on fm/cdma cell_tank? cell_tank+ pcs_tank? 47 46 45 44 43 42 41 40 39 38 48 cdma_vga_in+ cdma_vga_in? vcc_if pcs_mixer_out+ vcc_mix pcs_mixer_out? amps_mixout+ amps_mixout? cdma_mixout+ cdma_mixout? pcs_vga_in+ pcs_vga_in? amps_vga_in vga_control lod pcs_tank+ sif i? pll? i+ q+ q? pll+ sleep pcs_lna_out cell_lna_out cell_lna_bias_res cell_mix_in pcs_mix_in rfbias_set nc pcsmix_bypass pcs_lo cell_lo pcs_lna_bias_res to if amps saw filter input vga_ctrl 0.1 f 1000 pf 10 1 nf 1 nf 4.7 nf 4.7 nf 4.7 nf 4.7 nf 33 pf 2.2 k 47 nh dni 8.2pf 750 nh 4.7 nf 33 pf 2.2 k 47 nh dni 1 nf 33 pf dni 18 nh dni vcc_mix 4.7 nf 33 pf dni 390 nh dni 04.7 nf 18 nh 33 pf 1 nf dni dni 47 nf 4.7pf 4.7 f 33 pf vcc_mix rxq? rxq+ rxi+ sleep to pcs rf saw filter input 50 ohms 50 ohms to cdma rf saw filter input 50 ohms 6.8 nh vcc_lna 1 nf 8.2 pf 10 33 pf rxi? stm pll+ pcs lna input 33 pf cell lna input vco_on cell/pcs fm/pcs from cdma rf saw filter output from pcs rf saw filter output 10 nh 33 pf 50 ohms 800lo 1900lo 50 ohms to pcs if saw filter input vga_cdma_in+ vga_cdma_in? vcc_if vga_pcs_in+ vga_pcs_in? vga_amps_in 5.1 k 100 pf 100 pf 0 0 0 pll+ lod vcc_mix 220 8.2 nh vcc_1900_lna 1 nf 8.2 pf 10 1 k 10 nf lna_ctrl 1.2 nh 8.2 pf 8.2 pf lna_ctrl tune a1 a2 c 12 nh cathode 2 anode 2 cathode 1 anode 1 1 nf 1 nf 22 pf 22 pf 5.1 k 5.1 k 2 k 12 nh 5.1 5.1 vcc_tank 2.2 f 1 nf 5.1 220 pf 0 0 0 notes: 1. component values may change 2. dni = do not install 12 pf vcc_mix tune a2 a1 c 82 nh cathode 1 anode 1 cathode 2 anode 2 1 nf 1 nf 18 pf 18 pf 5.1 k 5.1 k 2 k 82 nh 5.1 5.1 vcc_tank 1 f 1 nf 5.1 220 pf 0 4.7 nf vcc 27 k 1 k dni 8.2 pf 1000 pf 1.5 nh 3.3 pf 8.2 pf 15 pf 10 nh 15 k 0 8.2 pf figure 47. CX74001 schematic diagram
rx asic for cdma, amps, and pcs applications CX74001 101134a skyworks 21 march 5, 2002 proprietary information and specifications are subject to change a bottom view side view c d e f b b top view pin #1 mark 0.50 ref 0.020 ref f e d r 0.089 ref 0.016 r 2.225 ref 0.41 0.31 0.012 a c b dim. 0.280 0.014 0.051 inches max. 7.10 0.35 1.30 max. millimeters 1.10 0.25 6.90 min. 0.043 0.272 0.010 min. cnxt017 pin #1 figure 48. package dimensions ? 48-pin rflga package
CX74001 rx asic for cdma, amps, and pcs applications 22 skyworks 101134a proprietary information and specifications are subject to change march 5, 2002 ordering information model name manufacturing part number product revision dual-band, tri-mode rx asic CX74001-12 ? 2002, skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyworks solutions, inc. ("skyworks") products. these materials are provided by skyworks as a service to its customers and may be used for informational purposes only. skyworks assumes no responsibility for errors or omissions in these materials. skyworks may make changes to its products, specifications and product descriptions at any time, without notice. skyworks makes no commitment to update the i nformation and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from future changes to its products and product desc riptions. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. exce pt as may be provided in skyworks? terms and conditions of sale for such products, skyworks assumes no liability whatsoever. these materials are provided "as is" without warranty of any kind, either express or implied, relating to sale and/or use of skyworks? products including warranties relating to fitness for a particular purpose, merchantability, performance, quality or non-infringement of any patent, copyright or other intellectual property right. skyworks further does not warrant the accuracy or completeness of the information, text, graphics or other items contained within these materials. skyworks shall not be liable for any special, indirect, incidental, or consequential damages, including without limitation, lost revenues or l ost profits that may result from the use of these materials. skyworks? products are not intended for use in medical, lifesaving or life-sustaining applications. skyworks? customers using o r selling skyworks? products for use in such applications do so at their own risk and agree to fully indemnify skyworks for any damages resulting from such improper use or sale. rflga is a trademark of conexant systems, inc. the following are trademarks of skyworks solutions, inc.: skyworks?, the skyworks symbol, and ?breakthrough simplicity??. produ ct names or services listed in this publication are for identification purposes only, and may be trademarks of third parties. third-party brands and names are the property of their respective owners. additional information, posted at www. skyworksinc.com, is incorporated by reference.
general information: skyworks solutions, inc. 4311 jamboree rd. newport beach, ca 92660-3007 www.skyworksinc.com

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