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. 2001-02-26 1/13 TA1290FN BLOCK DIAGRAM 2001-02-26 2/13 TA1290FN TERMINAL FUNCTION PIN No PIN NAME FUNCTION INTERFACE 1 Video Coil Connect video detection coil. 2 AFT Coil Connect AFT detection coil. AFT output is defeated when this terminal is connected to GND. 3 N.C. 4 VCC 5 2nd AGC Filter 6 1st AGC Filter 16 ― Connect bypass capacitor between this terminal and PIF GND with shortest wiring. (Typ. : 9V) ― ― This IC is adopted dual time constant AGC circuit to improve AGC responsibility. To mute picture, connect pin 6 with GND. 2001-02-26 3/13 TA1290FN PIN No 7 PIN NAME N.C. FUNCTION ― INTERFACE ― 8 PIF Input PIF input terminal. Input impedance is 2.5kΩ, 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 (39kΩ) 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. 9 ― 2001-02-26 4/13 TA1290FN PIN No. PIN NAME FUNCTION Video Out (Without Noise Inverter) 15 INTERFACE Video signal output terminal. (without noise inverter) To mute picture, connect pin 6 with GND. MAXIMUM RATINGS (Ta = 25°C) PIN No. SYMBOL RATING UNIT VCC 15 V PD (Note) 781 mW Operating Temperature Topr −20~65 °C Storage Temperature Tstg −55~150 °C Power Supply Voltage Power Dissipation Note: Mounted on the circuit board. When using the device at above Ta = 25°C , decrease the power dissipation by 6.25mW for each increase of 1°C. RECOMMENDED POWER SUPPLY PIN No. SYMBOL MIN TYP. MAX UNIT 4 VCC 8.1 9.0 9.9 V ELECTRIC CHARACTERISTICS DC CHARACTERISTICS (Unless otherwise specified, VCC = 9V, Ta = 25°C, SW1 : ON, SW2 : ON) CHARACTERISTICS Supply Current Terminal Voltage SYMBOL TEST CIRCUIT TEST CONDITION MIN TYP. MAX UNIT mA ICC ― 20 29 38 Pin 1 V1 ― 5.8 6.3 6.8 Pin 2 V2 ― 2.3 2.8 3.3 Pin 8 V8 3.5 4.0 4.5 Pin 9 V9 3.5 4.0 4.5 Pin 10 V10 5.7 6.2 6.7 Pin 13 V13 ― 2.5 4.0 5.5 Pin 14 V14 ― 4.2 4.7 5.2 Pin 15 V15 ― 4.2 4.7 5.2 Pin 16 V16 ― 5.8 6.3 6.8 SW 1 : OFF 1 ― SW 2 : OFF 2001-02-26 V 5/13 TA1290FN AC CHARACTERISTICS (Unless otherwise specified, VCC = 9V, Ta = 25°C) PIF CHARACTERISTICS (Using recommended coil) CHARACTERISTICS SYMBOL TEST CIRCUIT TEST CONDITION MIN TY.P MAX UNIT Input Signal Voltage sensitivity Vin Min (Note 1) 36 41 46 dBµV Maximum Input Signal Voltage Vin Max (Note 2) 100 110 ― dBµV ― ― 8 % ― ― 6 ° Differential Gain DG Differential phase DP Output Voltage at No Signal (Note 3) V14, V15 (Note 4) 4.0 4.6 5.2 V Sync. Voltage Level Vsync (Note 5) 2.0 2.3 2.6 V Output Signal Voltage Vout (Note 6) 1.7 2.0 2.3 Vp-p White Noise Inverter Level Vwth ― 5.0 ― White Noise Clamp Level Vwcl ― 3.8 ― Black Noise Inverter Level Vbth 0.9 1.2 1.5 Black Noise Clamp Level Vbcl 3.2 3.5 3.8 Suppression of Career CR (Note 8) 40 ― ― dB Suppression of Career Harmonics HR (Note 9) 40 ― ― dB ∆f / ∆V (Note 10) ― 20 30 kHz / V ― 0.1 0.5 8.4 8.7 ― 30 38 ― AFT Control Steepness AFT Output Intermodulation Min. Vl Max. Vh IM 2 (Note 7) ― (Note 11) 2001-02-26 V V dB 6/13 TA1290FN TEST CONDITION Note 1: Note 2: Note 3: Note 4: Note 5: Note 6: Note 7: Input signal voltage sensitivity PIF input : fp = 58.75MHz, fm = 15.75kHz, 30%AM, 84dBµV 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, 84dBµV 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, 84dBµV 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, 84dBµV 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, 84dBµV Measure output video signal voltage (15-b). Noise inverter PIF input : fp = 57~65MHz (sweep signal), 84dBµV. 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. 2001-02-26 7/13 TA1290FN Note 8: Note 9: Note 10: Note 11: Suppression of career PIF input : fp = 58.75MHz, fm = 15.75kHz, 30%AM, 84dBµV 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) = 20ℓog (2 / Vcareer) [dB] Suppression of career harmonics PIF input : fp = 58.75MHz, fm = 15.75kHz, 30%AM, 84dBµV 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, 84dBµV, 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) Intermodulation Input following composite signals to the PIF input. SG : 1 58.75MHz, 84dBµV (picture career) SG : 2 54.25MHz, 74dBµV (sound career) SG : 3 55.17MHz, 74dBµV (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. 2001-02-26 8/13 TA1290FN COIL SPECIFICATION COIL NAME AFT IF = 58.75MHz PIF IF = 58.75MHz PIF,AFT IF = 45.75MHz PART NUMBER 292GCS-3388BS (TOKO) 292YCS-3390BS (TOKO) T119KC-14969NK (TOKO) CONNECTION SPECIFICATION fO MAX Above 70MHz fO MIN Below 61MHz Q (non-load) 46±20% (fO MIN) fO MAX Above 66.5MHz fO MIN Below 61.8MHz Q (non-load) 17±20% (fO MIN) fO MAX 57.2MHz−8% or above fO MIN 42.6MHz+8% or below Q (non-load) 69±25% (fO MIN) 2001-02-26 9/13 TA1290FN TEST CIRCUIT 1 DC characteristic 2001-02-26 10/13 TA1290FN TEST CIRCUIT 2 2001-02-26 11/13 TA1290FN APPLICATION CIRCUIT 2001-02-26 12/13 TA1290FN PACKAGE DIEMENSIONS Weight: 0.07g (Typ.) 2001-02-26 13/13