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TA8701AN 2001-05-10 1 toshiba bipolar linear integrated circuit silicon monolithic TA8701AN pif / sif+att ic for tv / vtr to input function features pif section rf-pre amp. less by high input sensitivity 3-stage if amplifier with variable gain high-speed response agc with dual time constants single end aft output with defeat function delayed rf agc output (reverse agc) output with white / black noise inverter output without white / black noise inverter video mute switch sif section 3-stage limiter amplifier quadrature-type detection circuit use of a ceramic discriminator device makes the sif circuit adjustment-free sound mute switch n.f. audio amplifier dc att control weight: 1.22g (typ.)
TA8701AN 2001-05-10 2 block diagram
TA8701AN 2001-05-10 3 terminal function pin no. pin name function interface circuit 1 2 agc filter this filter is a dual time constant system to speed up agc. by connecting the primary filter terminal of pin 2 to gnd, the picture muting is executed. 3 agc delay this terminal adjusts the delay point of rf agc by varying the reference voltage of comparator. 4 5 pif input this is an input terminal of pif signal using an emitter follower. the input impedance is typical 2.5k ? , 4pf. 6 pif gnd gnd pin for the pif amplifier. connect a capacitor between pins 23 and 6. D 7 rf agc output output pin for rf-agc supplied to the tuner. (a 39k ? resistor is connected internally between pin 7 and the internal power supply pin.)
TA8701AN 2001-05-10 4 pin no. pin name function interface circuit 8 fm det output (de-emphasis) this is an output terminal of fm detector circuit. (supply this signal to the de-emphasis circuit.) 9 10 sif coil this terminal connects fm detector coil. use of a ceramic discriminator device makes the sif circuit adjustment-free. by connecting pin 9 to gnd, the audio muting is executed. 11 audio input sound amplifier input terminal. 12 nf sound amplifier negative feedback terminal. 13 audio output sound signal output terminal.
TA8701AN 2001-05-10 5 pin no. pin name function interface circuit 14 att sound amplifier gain control terminal. 15 sif gnd gnd pin for the sif amplifier. connect a capacitor between pins 15 and 17. D 16 sif input limiter amplifier input terminal. 17 sif v cc v cc pin for the sif amplifier. connect a capacitor between pins 15 and 17. D 18 video signal output-1 (n.i. off) this is an output terminal of video output. by connecting pin 2 to gnd, a muting is executed. output signal supplied to the sound if (sif) circuit. (example for diversity antenna circuit.) 19 video signal output-2 (n.i. on) this is an output terminal of video output. by connecting pin 2 to gnd, a muting is executed.
TA8701AN 2001-05-10 6 pin no. pin name function interface circuit 20 21 video coil this terminal connects video detector coil. 22 aft coil supply a control signal by single end. this method is that the phase difference is treated as current and voltage is converted by an external resistor. therefore, this can be connected to aft using only one pin. by connecting a resistor of 5.1k ? to gnd, an aft defeat can be executed. 23 pif v cc v cc pin for the pif amplifier. connect a capacitor between pins 6 and 23. D 24 aft output this is an output terminal of aft.
TA8701AN 2001-05-10 7 maximum ratings (ta = 25c) characteristic symbol rating unit supply voltage v cc 15 v power dissipation p d (note) 1.4 w operating temperature t opr ? 20~65 c storage temperature t stg ? 55~150 c note: when using the device at above ta = 25c, decrease the power dissipation by 11.2mw for each increase of 1c. recommended supply voltage pin no. pin name min typ. max unit 17 pif v cc 8.1 9.0 9.9 v 23 sif v cc 8.1 9.0 9.9 v electrical characteristics dc characteristics (unless otherwise specified, v cc = 9v, ta = 25c) characteristic symbol test cir- cuit test condition min typ. max unit supply current i cc 1 D 29 43 56 ma pin 3 v 3 sw 2 : b 5.7 6.2 6.7 pin 4 v 4 D 3.5 4.0 4.5 pin 5 v 5 D 3.5 4.0 4.5 v 7 (1) sw 1 : a sw 2 : c 8.8 D D pin 7 v 7 (2) sw 1 : b sw 2 : a D D 0.5 pin 8 v 8 sw 3 : b 3.3 3.9 4.5 pin 9 v 9 sw 3 : a 2.2 2.7 3.2 pin 10 v 10 D 3.2 3.7 4.2 pin 11 v 11 D 3.0 3.5 4.0 pin 12 v 12 D 5.7 6.2 6.7 pin 13 v 13 sw 4 : b 4.4 4.9 5.4 pin 14 v 14 sw 4 : a 2.0 2.5 3.0 pin 16 v 16 D 2.5 3.0 3.5 pin 18 v 18 D 4.2 4.7 5.2 pin 19 v 19 D 4.2 4.7 5.2 pin 20 v 20 D 5.8 6.3 6.8 pin 21 v 21 D 5.8 6.3 6.8 pin 22 v 22 sw 5 : a 2.3 2.8 3.3 terminal voltage pin 24 v 24 1 sw 5 : b 2.5 4.0 5.5 v
TA8701AN 2001-05-10 8 ac characteristics (unless otherwise specified, v cc = 9v, ta = 25c) pif section (when using the specified video coil) characteristic symbol test cir- cuit test condition min typ. max unit input sensitivity v in min 2 (note 1) 36 41 46 dbv maximum input level v in max 2 (note 2) 100 110 D dbv if agc range ? a 2 D 50 62 D db differential gain dg D D 8 % differential phase dp 3 (note 3) D D 6 no-signal output level v 14, v 15 2 (note 4) 4.0 4.6 5.2 v sync. tip level v sync 2 (note 5) 2.0 2.3 2.6 v video output amplitude v out 2 (note 6) 1.7 2.0 2.3 v p-p white noise inverter level v wth D 5.0 D white noise clamp level v wcl D 3.8 D black noise inverter level v bth 0.9 1.2 1.5 black noise clamp level v bcl 2 (note 7) 3.2 3.5 3.8 v carrier wave rejection ratio c l 4 (note 8) 40 D D db harmonic rejection ratio i 2nd 4 (note 9) 40 D D db aft sensitivity ? f / ? v 2 (note 10) D 20 30 khz / v min. v l D 0.1 0.5 aft output voltage max. v u 2 D 8.4 8.7 D v intermodulation i 920 4 (note 11) 30 38 D db sif section (when using the specified sif coil) characteristic symbol test cir- cuit test condition min typ. max unit fm detector output level v od 5 (note 12) 350 550 750 mv rms limiting sensitivity v inlim 5 (note 13) D 40 50 dbv am suppression ratio amr 5 (note 14) 40 D D db ? 3db bandwidth ? f g 5 (note 15) 60 80 D khz distortion bandwidth (1.5%) ? f d 5 (note 16) 50 70 D khz att ac gain g v (att) 2 (note 17) 8 10 12 db att maximum attenuation att max 2 (note 18) 75 D D db audio amp. ac gain g v (af) 2 (note 19) 15 17 19 db
TA8701AN 2001-05-10 9 test conditions note 1: input sensitivity pif input (pin 4) : f o = 58.75mhz, f m = 15.75khz, 30% am, 84dbv. gradually reduce the input level. measure the input level when the detection output at video output (pin 19-a) will be ? 3db. note 2: maximum input level pif input (pin 4) : input same as note 1. gradually raise the input level. measure the input level when the detection output at video output (pin 19-a) is at the noise inverter threshold. note 3: differential gain / differential phase pif input (pin 4) : f o = 58.75mhz, standard television signal (v / s = 10 : 4 ramp waveform), 87.5% am, 84dbv. if agc = free. measure the differential gain and differential phase with a vector scope. (pin 19-b) note 4: no-signal output level pif input (pin 4) : no input. 2nd agc terminal (pin 1) : gnd, measure dc voltage at video output (pin 19-a). note 5: sync. tip level pif input (pin 4) : input same as note 3. measure sync. tip dc voltage at video output (pin 19-b). note 6: video output amplitude pif input (pin 4) : input same as note 3. measure amplitude level at video output (pin 19-b). note 7: noise inverter pif input (pin 4) : f o = 57~65mhz (sweep signal), 84dbv. connect monitor scope to video output (pin 19-b). measure the 2nd agc terminal (pin 1) voltage and fix the terminal to that voltage using the external power supply. then, 2nd agc voltage variable when a waveform like that in the accompanying diagram is output. ad: black noise inverter level. bc: black noise clamp level. eh: white noise inverter level. fg: white noise clamp level.
TA8701AN 2001-05-10 10 note 8: carrier wave rejection ratio pif input (pin 4) : f o = 58.75mhz, f m = 15.75khz, 78% am, 84dbv. add the voltage 2nd agc terminal (pin 1), so that the video output (pin 19-b) can be 2v p-p. calculate the following equation by setting the modulation off and measuring the output carrier level. (v no-mod [v p-p ]) [db] ) (v v 2.0 og 20 c p - p mod - no l note 9: harmonic rejection ratio measure as is note 8 above, and calculate the secondary harmonic level (117.5mhz component) at video output (pin 19-b). note 10: aft sensitivity pif input (pin 4) : f o = 58.75mhz, 84dbv, cw. input the above signal and adjust the aft coil so that the aft output pin (pin 24) voltage is 4.5v. measure the output voltage differential ( ? v) of the aft output pin when the frequency is raised by 20khz. then, calculate the ratio using the following formula. / v] [khz ? v 20 ? v ? f
TA8701AN 2001-05-10 11 note 11: intermodulation pif input (pin 4) : input the following composite signals to the pif input. (1) sg1 : 58.75mhz (p) 84dbv (2) sg2 : 54.25mhz (s) 74dbv (3) sg3 : 55.17mhz (c) 74dbv monitor the video output (pin 19-b) detection output waveform. apply external voltage to the 2nd agc terminal (pin 1) so that the waveform?s lowest level matches the sync. tip level. using a spectrum analyzer, measure the difference between the level of the chroma signal component and 920khz signal component. note 12: fm detection output sif input (pin 16) : f o = 4.5mhz, f m = 400hz, 25khz / devi, 100dbv. measure the sound detection output of the sound output terminal (pin 8). note 13: limiting sensitivity sif input (pin 16) : input same as note 12. gradually reduce the input signal. measure the input level when the sound detection output of the sound output terminal (pin 8) will be ? 3db. note 14: am suppression ratio sif input (pin 16) : f o = 4.5mhz, 84dbv. measure the sound detection output level of the sound output terminal (pin 8) when the above signals are modulated as follows. calculate the ratio. (1) am modulation : f m = 400hz, 30% (2) fm modulation : f m = 400hz, 25khz / devi [db] ) (mv modulation am with ) (mv modulation fm with og 20 amr rms rms note 15: ? 3db bandwidth sif input (pin 16) : f o = 4.5mhz, f m = 400hz, 7.5khz / devi, 100dbv. (1) f afh : gradually raise the frequency. measure the input frequency when the sound detection output of the sound output terminal will be ? 3db. (2) f afi : gradually lower the frequency. measure the input frequency when the sound detection output of the sound output terminal will be ? 3db. ? 3db bandwidth = (f afh ? f afl ) [khz]
TA8701AN 2001-05-10 12 note 16: distortion bandwidth (1.5%) sif input (pin 16) : input same as note 15. (1) f dafh : gradually raise the frequency. measure the input frequency when the sound distortion ratio of the sound output terminal will be 1.5%. (2) f dafl : gradually lower the frequency. measure the input frequency when the sound distortion ratio of the sound output terminal will be 1.5%. distortion bandwidth = (f dafh ? f dafl ) [khz] note 17: att ac gain audio input (pin 11) : f = 1khz, 0.1v p-p . measure the negative feedback terminal (pin 12) output level. calculate the ratio using the following formula. [db] v (0.1) v 12) (pin og 20 (att) g p - p p - p v note 18: att maximum attenuation audio input (pin 11) : f = 1khz, 0.5v p-p. att terminal volume is max and min. (audio control : pin 14) measure the negative feedback terminal (pin 12) output level. calculate the ratio using the following formula. [db] v min) (volume v max) (volume og 20 max att p - p p - p note 19: audio amp. ac gain audio input (pin 11) : f = 1khz, 0.1v p-p. att terminal volume is max. (audio control : pin 14) measure the audio output terminal (pin 13) output level. calculate the ratio using the following formula. [db] v (0.1) v 13) (pin og 20 (af) g p - p p - p v
TA8701AN 2001-05-10 13 test circuit 1 dc characteristic
TA8701AN 2001-05-10 14 test circuit 2 ac characteristic coil japan usa video 292ycs-3390bs t119kc-14969nk aft 292gcs-3388bs t119kc-14969nk sif f292mcas-3297ib f292mcas-3297ib
TA8701AN 2001-05-10 15 test circuit 3 dg / dp test circuit 4 carrier wave rejection ratio, harmonic rejection ratio and intermodulation test circuit 5 v in (lim) , amr, v od , ? f g , ? f d
TA8701AN 2001-05-10 16
TA8701AN 2001-05-10 17 application circuit coil japan usa video 292ycs-3390bs t119kc-14969nk aft 292gcs-3388bs t119kc-14969nk sif f292mcas-3297ib f292mcas-3297ib
TA8701AN 2001-05-10 18 package dimensions sdip24-p-300-1.78 unit: mm weight: 1.22g (typ.)
TA8701AN 2001-05-10 19 toshiba is continually working to improve the quality and reliability of its products. nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. it is the responsibility of the buyer, when utilizing toshiba products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such toshiba products could cause loss of human life, bodily injury or damage to property. in developing your designs, please ensure that toshiba products are used within specified operating ranges as set forth in the most recent toshiba products specifications. also, please keep in mind the precautions and conditions set forth in the ?handling guide for semiconductor devices,? or ?toshiba semiconductor reliability handbook? etc.. the toshiba products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). these toshiba products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (?unintended usage?). unintended usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. unintended usage of toshiba products listed in this document shall be made at the customer?s own risk. the products described in this document are subject to the foreign exchange and foreign trade laws. the information contained herein is presented only as a guide for the applications of our products. no responsibility is assumed by toshiba corporation for any infringements of intellectual property or other rights of the third parties which may result from its use. no license is granted by implication or otherwise under any intellectual property or other rights of toshiba corporation or others. the information contained herein is subject to change without notice. 000707eb a restrictions on product use

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