TA8700AN TOSHIBA | Alldatasheet
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TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
FEATURES
@ RF-Pre Amp. less by high input sensitivity _— SS @ 3-Stage IF amplifier with variable gain KK as Wy , ; ; Na yy} | @ High-Speed response AGC with dual time constants Mot Ht Ar y VON E Se We Y © Single end AFT output with defeat function il I) \\ ve (uy @ Delayed RF AGC output (Reverse AGC) @ Output with white/black noise inverter SDIP20-P-300-1.78 © Output without white/black noise inverter Weight : 1.02g (Typ.) @ 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 961001EBA2 ©@ TOSHIBA is continually working to improve the quality and the reliability of its products, Nevertheless, semiconductor devices in general can malfunction or fall due to thei inherent electrical sensitivity and, vulnerability to physical stres. itis the responsibilty of the buyer, when utlizing TOSHIBA products, to observe standards of safety, and to avoid situations in which a malfunction or failure of a TOSHIBA product 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 products specifications. Also, please keep in mind the precautions and conditions set forth in the TOSHIBA Semiconductor Reliability Handbook. @ The products described in this document are subject to foreign exchange and foreign trade control laws. © ‘he information contained herein 's presented only as a guide for the applications of our products. No_ responsibilty 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 e The information contained herein is subject to change without notice. 1997-07-07 1/16
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This filter is a dual time constant oe S 1 system to speed up AGC. © | | # (| acc 2 [AGC Filter By connecting the primary filter LH Det. terminal of pin 2 to GND, the picture muting is executed. ©) Cs Vec S 10) This terminal adjusts the delay 1060 3 | AGC Delay point of RF AGC by varying the ® reference voltage of comparator. oe a, RF AGC
2 Output
‘ott__le This is an input terminal of PIF [| fy) 4 Jor Input signal using an emitter follower. © 3
5 The input impedance is typical & : 33
2.5kQ, 4pF. a GND pin for the PIF amplifier. PIF GND Connect a capacitor between pins 19 and 6. Output pin for RF-AGC supplied to vec S. the tuner. © E 7 |RF AGC Output |(A 39kQ resistor is connected we ‘AGC Delay internally between pin7 and the (ai internal power supply pin.) 1997-07-07 3/16
This is an output terminal of FM FM Det Output | detector circuit. (De-emphasis) (Supply this signal to the de- ® emphasis circuit.) ® ao [J This terminal connects FM detector ® Lae) Coil. Audio eo we Mute et 9 Use of a ceramic discriminator Ss.
10 SIF Coil device makes the SIF circuit =
adjustment-free. By connecting pin9 to GND, the 3 Audio muting is executed. “ GND pin for the SIF amplifier. SIF GND Connect a capacitor between pins 13 and 11. SIF Input Limiter amplifier input terminal. [| . ° ia Hn ® Vcc pin for the SIF amplifier. 13 |SIF Vcc Connect a capacitor between pins 11 and 13. This is an output terminal of Video output. GS Video signal By Connecting Pin 2 to GND, a S 14 |output-1 muting is executed. (NA. OFF) Output signal supplied to the © i sound IF (SIF) circuit. + (Example for diversity antenna circuit.) 1997-07-07 4/16
[ee [coder ce S Video signal This is an output terminal of video = 15 |Output-2 output. (NL ON) By connecting pin2 to GND, a ® “ muting is executed. + . rr | ® LT STA, . is terminal connects video om @ 17 Video Coil detector Coil. a, art gg. Supply a control signal by signal end. This method is that the phase Vee difference is treated as current and voltage is converted by an external @ 1002 3.3kQ. . resistor. There-fore, this can be ? aa] 18 |AFT Coil connected to AFT using only one Lb pin. ® By connecting a resistor of 5.1kQ. to GND, an AFT defeat can be executed. Vcc pin for the PIF amplifier. PIF Vcc Connect a capacitor between pins 6 and 19. Sg 20 | AFT Output This is an output terminal of AFT. @ g 1997-07-07 5/16
MAXIMUM RATINGS (Ta = 25°C) CHARACTERISTIC SYMBOL RATING UNIT Supply Voltage Pp (Note) Operating Temperature -20~65 =55=150 (Note) When using the device at above Ta =25°C, decrease the power dissipation by 9.6mW for each increase of 1°C. RECOMMENDED SUPPLY VOLTAGE frwno.| pmname | win, | re, | wax. | unr PIFVec [| 81 [ 90 | 99 | v | siFVec | 81 | 90 | 99 [ Vv |
ELECTRICAL CHARACTERISTICS
DC CHARACTERISTICS (Unless otherwise specified, Vcc =9V, Ta = 25°C) TEST CHARACTERISTIC SYMBOL TEST CONDITION fran | ve, | UNIT CUIT Supply Current A ee Pins [vs | [i 5B a min SWy ra, SW [ee |— | —| SWB, SW): L— | — [os | Swab [aa [3a | 45 | Terminal a EY Voltage ee Pinta] Vig | [> SSS—~d a | a | a ar | [8 63 | a | [SWara SSCS 2 | zw | | [swab | 25 | 40] 55 | 1997-07-07 6/16
AC CHARACTERISTICS (Unless otherwise specified, Vcc =9V, Ta = 25°C) PIF section (When using the specified video coil) CUIT [input Sensitivity | Vin MIN | 2 | (Note 1) | 36 | 41 [ 46 [dBav] [Maximum Input Level [| Vin MAX | 2 [ (Note 2) | 100 | 110 | — [dBav] HAGC Range | AP To | — | [=-[-[ se] #_ iterentarrie [pr 2 | ee) PSPS et [No-signal Output Level | Via Vig | 2 | (Note) | a0 | a6 | 52] v_| syne. Tip tevel_ | Vsywe_| 2 | (Note 5) | 20[ 23 | 26 | v_| Video Output Amplitude | Vour | 2 | (Note 6) | 17 | 20 [23 | Vpp | [= [so [— | Worn «Lest =] y osp 12 | 15 [32] 35 [38 | [carrier Wave Rejection Ratio| c| 4 | (ote) | a0; — | — | a | [Harmonic Rejection Ratio | land | 4 | (Note) | a0 | — | — | 8 | [AFT Sensitivity | aF/av | 2 | (Note 10) | — | 20 | 30 [kav] arrouose vores Fret wy? | Paar pe Y | AFT Output Voltage Fax | vu _ [safer > —| © fintermodulation | —lg9 | 4 | (Note) | 30] 38 | — | 8 | SIF section (When using the specified SIF coil) [cmc | src || remo [vn [une |r CHARACTERISTIC SYMBOL | CIR- TEST CONDITION TYP. | MAX. | UNIT CUIT [Fit Detector Output Level | Vop | 5 | (Note 12) | 350. | 550 | 750_ [rene [cimiting Sensitivity | Vinum | 5 | (Note 13) | — | 40 | 50 |aB,v] [AM Suppression Ratio | AMR | 5 | (Note | a0 | — | — | as | [=3d8 Bandwidth | #afg | 5 | (Note 15) | 60 | 60 | — | kh | [Distortion Bandwidth | afp | 5 | (Note 16) | 50] 70 | — | kh | 1997-07-07 7/16
(Note 1) Input sensitivity PIF input (Pin 4) : fo =58.75MHz, fm =15.75kHz, 30% AM, 84dByV. Gradually reduce the input level. Measure the input level when the detection output at video output (Pin 15-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 15-a) is at the noise inverter threshold. (Note 3) Differential gain / Differential phase PIF input (Pin 4) : fo =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 15-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 15-a). (Note 5) Sync. Tip level PIF input (Pin 4) : Input same as Note 3. Measure Sync. Tip DC voltage at video output (Pin 15-b). (Note 6) Video output amplitude PIF input (Pin 4) : Input same as Note 3. Measure amplitude level at video output (Pin 15-b). (Note 7) Noise inverter PIF input (Pin 4) : fo =57~65MHz (Sweep Signal), 84dBV. Connect monitor scope to video output (Pin 15-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. m5) i eH [AP : Black Noise Inverter Level i BC : Black Noise Clamp Level 4 alc i? EH : White Noise Inverter Level 2 i ; Sif FG : White Noise Clamp Level fo t— 1997-07-07 8/16
(Note 8) Carrier wave rejection ratio PIF input (Pin 4) : fg =58.75MHz, fp =15.75kHz, 78% AM, 84dByV. Add the voltage 2nd AGC terminal (Pin 1), So that the video output (Pin 15-b) can be 2Vp-p- Calculate the following equation by setting the modulation to [0] and measuring the output carrier level. 2.0 L= 20009 F510] Wpp) 8 (Note 9) Harmonic rejection ratio Measure as is Note 8, above, and calculate the secondary harmonic level (117.5MHz component) at video output (Pin 15-b). (Note 10) AFT sensitivity PIF input (Pin 4) : fg =58.75MHz, 84dByuV, CW. Input the above signal and adjust the AFT coil so that the AFT output pin (Pin 20) voltage is 4.5V. Measure the output voltage differential (AV) of the AFT output pin when the frequency is raised by 20kHz. Then, calculate the ratio using the following formula. At 20 av = av [kHz/V] AFT OUTPUT VOLTAGE spt tpi 0-4 =2 To 2 4 MHz 58.75MHz 1997-07-07 9/16
(Note 11) Intermodulation PIF input (Pin 4) : Input the following composite signals to the PIF input. (1) $G1_: 58.75MHz (P) 84dBuV (2) $G2 : 54.25MHz (S) 74dBuV (3) $G3_: 55.17MHz (C) 74dByV Monitor the video output (Pin 15-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 level SIF input (Pin 12) : fg =4.5MHz, fm =400Hz, 25kHz/devi, 100dB/V. Measure the sound detection output of the sound output terminal (Pin 8). (Note 13) Limiting sensitivity SIF input (Pin 12) : 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 12) : fg =4.5MHz, 84dByV. 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 : fm =400Hz, 30% (2) FM modulation : fm, =400Hz, 25kHz/devi with FM modulation (mVrms) AMR = 20f0g “ AM modulation (mVrms) {aB] (Note 15) -3dB bandwidth SIF input (Pin 12) : fg =4.5MHz, fm =400Hz, 7.5kHz/devi, 100dByV. (1) farh : Gradually raise the frequency. Measure the input frequency when the sound detection output of the sound output terminal will be -3dB. (2) far| : Gradually lower the frequency. Measure the input frequency when the sound detection output of the sound output terminal will be -3dB. -3dB bandwidth = (faFh - far) [kHz] (Note 16) Distortion bandwidth (1.5%) SIF input (Pin 12) : Input same as Note 15. (1) fpaFh : Gradually raise the frequency. Measure the Input frequency when the sound distortion ratio of the sound output terminal will be 1.5%. (2) fparl : Gradually lower the frequency. Measure the input frequency when the sound distortion ratio of the sound output terminal will be 1.5%. Distortion bandwidth = (fparh - fpari) [kHz] 1997-07-07 10/16
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cn [ AFT Defeat SW AFT Out & iS P15 Pia SIF SIF In pag IF Mec z boa b a Vcc PIR 99000 378 “Ty it ! 8 Baul e TA8700AN OY Ooo ® © D9 ® © 0 ne Sav s és Boe 8 é S yt g sl. & de 510 ' 7 2 2h fe) oO SIF Coil Video mute SW Pa P7 Ps PIF In RF AGC — Sound Out Out (De-Emp.) TRF1059D | TRF1066 1997-07-07 12/16
fo =58.75MHz PIF 2 in APL =50% TEST CIRCUIT 4 Carrier wave rejection ratio, harmonic rejection ratio and intermodulation 58.75MHz Test Circuit 34.25MHz Analyzer 55.17MHz TEST CIRCUIT 5 VIN (LIM) AMR, Vop, Afg, 4fp Voltage SIFIn Sound Out Meter s6 0.01 pF 2 aL Distortion 1997-07-07 13/16
RF-AGC DELAY POINT TEMPERATURE CHARACTERISTICS. SIF / AMR CHARACTERISTICS AAS es Tg RE Bin cia | s ot vecosv ee a ee 2 CERT 8 ~Prores) | . ~ oi f~AXt ttt ttt i tt | 4 8| 1 Delay Point =4.5V 30- = 400 gS EEE E EE Ay g SUTIN TTT Tt Ty yy oe Oe eee ee eee ee SE e LPT TINT TTT TTT Ty
3 FLEET Te soe 2 of ft tA TT ye |
g SSeeeEe t= [TTT] § HN cate rr 2, See ee oigl | TT TA [| | rl oLlLti titi yyy i yt | 20 ‘70 4 78 82 86 90 94 30 40 50 60 70 80 90 100 RF INPUT LEVEL (dBy:V) RF INPUT LEVEL (d8/2V) Ss SIF BANDWIDTH CHARACTERISTICS = 12) 600) if ern zt eo IVA TTT TEN TT z a eee g 2 LU poe KT sat 8 EN BEM szaeeesr ans et 8 eee Eo agi tT i Skeet | ry 43 44 45 46 fo. (MHz) 1997-07-07 14/16
3kQ. art 1k. Vecaov al = = rruner ‘ oe 35 Fs st Fs patieocol Lg Te aTpF aI ete effF) frei: x z. m i ' 1 tot 4 ws ar 33 8 en] STKE TI teint $ STS Sf «| no eLs Sh og SF [ET s TA8700AN aay 4 Wk 8t s saw Fe, J g é & = LS nS = o] fc os AFAGC Out Biss ° SAW ot" 3 x ‘ 32 OD 1K9. nracc 40000 ‘ Delay 2 J 2200 388 [seen Ee Aucio Out Et 500 SOF In TRF1070 TRF1058 TRF1066 TRF1059D 8997-07-07 15/16
SDIP20-P-300-1.78 Unit : mm 20 14 3 riririririririsi cir g 8 3 & $F 1 10 19.1MAX 18.6+0.2 | nnn I: WI IO hs RQ —5 3 s Weight : 1.02g (Typ.) 1997-07-07 16/16