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TA1290FN
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA1290FN
PIF IC FOR TV FEATURES
l RF Pre Amp. less by high input sensitivity l 3-stage IF amplifier with variable gain l High-speed response AGC with dual time constants l Single AFT output with defeat function l Delayed RF AGC output (reverse AGC) l Output with white / black noise inverter l Output without white / black noise inverter l Video mute switch
Weight: 0.07g (Typ.)
000707EBA1
* 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.
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BLOCK DIAGRAM
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TERMINAL FUNCTION
PIN No PIN NAME FUNCTION INTERFACE
1
Video Coil
Connect video detection coil.
16
2
AFT Coil
Connect AFT detection coil. AFT output is defeated when this terminal is connected to GND.
3 4
N.C. VCC
Connect bypass capacitor between this terminal and PIF GND with shortest wiring. (Typ. : 9V)

5
2nd AGC Filter
6
1st AGC Filter
This IC is adopted dual time constant AGC circuit to improve AGC responsibility. To mute picture, connect pin 6 with GND.
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PIN No 7 N.C. PIN NAME FUNCTION INTERFACE
8 PIF Input 9 PIF input terminal. Input impedance is 2.5k, 4pF.
10
RF AGC Delay
Changing comparator reference voltage adjusts RF AGC delay point.
11
RF AGC Out
RF AGC output terminal. (open collector output) Resister (39k) is connected internally between this terminal and VCC.
12
PIF GND
Connect bypass capacitor between this terminal and PIF GND with shortest wiring.
13
AFT Out
AFT detector output terminal.
14
Video Out (With Noise Inverter)
Video signal output terminal. (with noise inverter) To mute picture, connect pin 6 with GND.
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PIN No. PIN NAME FUNCTION INTERFACE
15
Video Out (Without Noise Inverter)
Video signal output terminal. (without noise inverter) To mute picture, connect pin 6 with GND.
MAXIMUM RATINGS (Ta = 25C)
PIN No. Power Supply Voltage Power Dissipation Operating Temperature Storage Temperature SYMBOL VCC PD (Note) Topr Tstg RATING 15 781 -20~65 -55~150 UNIT V mW C C
Note:
Mounted on the circuit board. When using the device at above Ta = 25C , decrease the power dissipation by 6.25mW for each increase of 1C.
RECOMMENDED POWER SUPPLY
PIN No. 4 SYMBOL VCC MIN 8.1 TYP. 9.0 MAX 9.9 UNIT V
ELECTRIC CHARACTERISTICS DC CHARACTERISTICS
(Unless otherwise specified, VCC = 9V, Ta = 25C, SW1 : ON, SW2 : ON)
CHARACTERISTICS Supply Current Pin 1 Pin 2 Pin 8 Pin 9 Terminal Voltage Pin 10 Pin 13 Pin 14 Pin 15 Pin 16 SYMBOL ICC V1 V2 V8 V9 V10 V13 V14 V15 V16 1 SW 1 : OFF SW 2 : OFF TEST CIRCUIT TEST CONDITION MIN 20 5.8 2.3 3.5 3.5 5.7 2.5 4.2 4.2 5.8 TYP. 29 6.3 2.8 4.0 4.0 6.2 4.0 4.7 4.7 6.3 MAX 38 6.8 3.3 4.5 4.5 6.7 5.5 5.2 5.2 6.8 V UNIT mA
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AC CHARACTERISTICS (Unless otherwise specified, VCC = 9V, Ta = 25C) PIF CHARACTERISTICS (Using recommended coil)
CHARACTERISTICS Input Signal Voltage sensitivity Maximum Input Signal Voltage Differential Gain Differential phase Output Voltage at No Signal Sync. Voltage Level Output Signal Voltage White Noise Inverter Level White Noise Clamp Level Black Noise Inverter Level Black Noise Clamp Level Suppression of Career Suppression of Career Harmonics AFT Control Steepness AFT Output Intermodulation Min. Max. SYMBOL Vin Min Vin Max DG DP V14, V15 Vsync Vout Vwth Vwcl Vbth Vbcl CR HR f / V Vl Vh IM (Note 11) (Note 8) (Note 9) (Note 10) 2 (Note 7) TEST CIRCUIT TEST CONDITION (Note 1) (Note 2) (Note 3) (Note 4) (Note 5) (Note 6) MIN 36 100 4.0 2.0 1.7 0.9 3.2 40 40 8.4 30 TY.P 41 110 4.6 2.3 2.0 5.0 3.8 1.2 3.5 20 0.1 8.7 38 MAX 46 8 6 5.2 2.6 2.3 1.5 3.8 30 0.5 dB dB kHz / V V dB V UNIT dBV dBV % V V Vp-p
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TEST CONDITION
Note 1: Input signal voltage sensitivity PIF input : fp = 58.75MHz, fm = 15.75kHz, 30%AM, 84dBV Measure output video signal voltage (15-a, that voltage is 0dB). Lower input signal voltage gradually, measure input PIF signal voltage when output video signal voltage is -3dB. Maximum input signal voltage PIF input : fp = 58.75MHz, fm = 15.75kHz, 30%AM, 84dBV Raise input signal voltage gradually, measure input PIF signal voltage (15-a) when output video signal voltage is at the noise inverter threshold. Differential gain / Differential phase PIF input : fp = 58.75MHz, Standard television signal (V / S = 10 : 4 ramp waveform), 87.5%AM, 84dBV IF AGC : free Measure deferential gain and deferential phase (15-b). Output voltage at no signal PIF input : no input IF AGC : GND Measure output video signal DC voltage (15-b). Sync. voltage level PIF input : fp = 58.75MHz, Standard television signal (V / S = 10 : 4 ramp waveform), 87.5%AM, 84dBV Measure sync. voltage level (15-b). Output signal voltage PIF input : fp = 58.75MHz, Standard television signal (V / S = 10 : 4 ramp waveform), 87.5%AM, 84dBV Measure output video signal voltage (15-b). Noise inverter PIF input : fp = 57~65MHz (sweep signal), 84dBV. Connect monitor scope to video output (15-b). Supply DC voltage to 2nd AGC from external source. Controlling that voltage, measure noise inverter and clamp level when a waveform like that in the following figure is output.
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
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Note 8: Suppression of career PIF input : fp = 58.75MHz, fm = 15.75kHz, 30%AM, 84dBV Add the 2nd AGC terminal from external power supply, so that the output video signal voltage (15-b) can be 2Vp-p. Turning modulation off, measure output career (Vcareer [Vp-p]) at pin 15. Calculate the following equation. (Suppression of career) = 20og (2 / Vcareer) [dB] Suppression of career harmonics PIF input : fp = 58.75MHz, fm = 15.75kHz, 30%AM, 84dBV Add the 2nd AGC terminal from external power supply, so that the output video signal voltage (15-b) can be 2Vp-p. Turning modulation off, measure output career (117.5MHz) level (Vcareer [Vp-p]) at pin 15. Calculate the following equation. (Suppression of career harmonics) = 20 log (2 / Vcareer) [dB] AFT control steepness PIF input : fp = 58.75MHz, 84dBV, CW Input the above signal and adjust the AFT coil so that the AFT output voltage is 4.5V. Measure AFT output voltage of following conditions. (input frequency = 58.74MHz) : VAFT1 (input frequency = 58.76MHz) : VAFT2 AFT control steepness is calculated by following equality. (AFT control steepness) = f / V = 20 / (VAFT1-VAFT2)
Note 9:
Note 10:
Note 11:
Intermodulation Input following composite signals to the PIF input. SG : 1 58.75MHz, 84dBV (picture career) SG : 2 54.25MHz, 74dBV (sound career) SG : 3 55.17MHz, 74dBV (chroma) Supply DC voltage to 2nd AGC terminal from external source, so that bottom of output signal voltage (15-b) matches sync. tip level. Measure the difference of output signal voltage at pin 15 between 3.58MHz component (chroma) and 920kHz component.
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COIL SPECIFICATION
COIL NAME PART NUMBER CONNECTION fO MAX AFT IF = 58.75MHz 292GCS-3388BS (TOKO) fO MIN SPECIFICATION Above 70MHz Below 61MHz
Q (non-load)
4620% (fO MIN)
fO MAX PIF IF = 58.75MHz 292YCS-3390BS (TOKO) fO MIN
Above 66.5MHz Below 61.8MHz
Q (non-load)
1720% (fO MIN)
fO MAX PIF,AFT IF = 45.75MHz T119KC-14969NK (TOKO) fO MIN
57.2MHz-8% or above 42.6MHz+8% or below
Q (non-load)
6925% (fO MIN)
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TEST CIRCUIT 1
DC characteristic
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TEST CIRCUIT 2
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APPLICATION CIRCUIT
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PACKAGE DIEMENSIONS
Weight: 0.07g (Typ.)
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