UTC TA7611AP LINEAR INTEGRATED CIRCUIT FM IF/AM TUNER SYSTEM DESCRIPTION The UTC TA7611AP is a monolithic integrated circuit, designed for the VIF stage in color and B/W TV receiver. The UTC TA7611AP is used for Forward AGC type. FEATURES *High gain wide brand IF amplifier *Gain reduction with excellent stability *Excellent DG/DP and S/N characteristics *Negative video output signal *Fast AGC action due to noise inverter and peak AGC *Switch off the video part VTR SW FUNCTIONS DIP-16 *Three controlled IF amplifier stages *Video demodulator controlled by picture carrier *Black noise and white noise inverter *Peak AGC *DC amplifier for RF AGC output *Quadrature detector for AFT *DC amplifier for AFT BLOCK DIAGRAM NC NC NC NC Vcc 5 6 7 10 11 15 IF INPUT 9 16 IF 1 IF 2 IF 3 1 8 VIDEO TANK VIDEO AMP. 2 12 AGC2 RF AGC OUTPUT 4 AGC3 AGC1 3 RF AGC RELAY UTC VIDEO NOISE INVERTER 14 13 OUTPUT IF AGC FILTER UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R111-004,A UTC TA7611AP LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS(Ta=25°C) PARAMETER Supply Voltage Open Loop Voltage Video DC Output Current Power Dissipation Operating Temperature Storage Temperature SYMBOL VCC V4 I12 PD TOPR TSTG VALUE UNIT 15 15 6 1.4 -20 ~ +65 -55 ~ +150 V V MA W °C °C ELECTRICAL CHARACTERISTICS(Ta=25°C, Vcc=12V, fo=45.75MHz, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT Recommended Supply Voltage VCC 10.8 12 13.2 V Quiescent Circuit Current ICCQ 42 51 63 mA Video DC Output 5.2 5.5 5.8 V V5-V6 V12 SW1: on,SW2: on 5.3 6.8 8.3 V AFT Output Offset Voltage V5-V6 SW1: on,SW2: on -1.5 0 RF AGC Residual Output Voltage V4(SAT) SW4:1 RF AGC Leak Current I4(LEAK) VCC=12V,SW3:1,SW4:1 SVI V12=0.8VP-P f0=45.75MHZ,AM=30% 100 200 AGC Range VAGC (IF) VCC=12V,f0=45.75MHZ V14=11.5V→4.0V 60 64 Sync Tip Level Voltage (pin12) VSYNC 2.3 2.5 Maximum IF Input Voltage VI(MAX) 100 120 White Noise Threshold (pin12) VWTH 5.8 6.2 6.6 White Noise Clamp Level (pin12) VWCL 3.7 4.1 4.5 V Black Noise Threshold (pin12) VBTH 1.4 1.6 1.8 V 3.7 AFT DC Output Voltage Video Sensitivity Black Noise Clamp Level (pin12) V V 1 µA 300 µVrms dB 2.7 V mVrms V 2.9 3.3 GV(IF) Input 45.75MHz, Sweep Generator 4.5 5.5 MHz CL SG1=100mVrms SG2, SG3->OFF 40 50 dB Suppression of 2nd Carrier I2ND SG1=100Mvrms SG2, SG3->OFF 40 50 dB 920KHz Beat Level I920 SG1=100mVrms SG2=SG3=32mVrms 33 38 dB Differential Gain DG 7 10 dB Differential Phase DP 3.5 5 Degree Input Impedance RIN CIN 3.0 4. 5 2 6 5 K pF V Video Frequency Response Suppression of Carrier VBCL 1.5 0.5 fo=45.75MHz, Between pin16~1 AFT Output Upper Voltage V5,V6(UP) 11.7 11.9 12 AFT Output Lower Voltage V5,V6(LOW) 1.8 2.3 2.8 Maximum Available Current I4(MAX) 7 AFT Sensitivity UTC SAFT V V mA 16 KHz/V UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R111-004,A UTC TA7611AP LINEAR INTEGRATED CIRCUIT TEST CIRCUIT 1 1 2 SW4 0.01 µF 15 47 µF 1.6kΩ A 0.01 µF 16 Vcc=12V 3.9kΩ 820kΩ 3.3kΩ 14 0.01 µF 0.01 µF 13 12 11 10 0.01µF 5.1kΩ 9 UTC TA7611AP 0.01 µF 3 0.01 µF 4 5 6 7 0.01µF 2 0.01µF 1 SW1 8 0.01 µF 1.6kΩ A 2 SW3 1 +15V TEST CIRCUIT 2 VIDEO OUTPUT VAGC Vcc=12V 1 S1 47 µF 1kΩ 5kΩ 1kΩ UTC 15 0.01 µF 14 13 12 11 10 9 6 7 8 UTC TA7611AP 1 2 1.6kΩ 3 4 SW2 5 75pF 16 3.9kΩ 0.01 µF 1000pF 820kΩ 0.01 µF 1.6kΩ 2 IF INPUT 0.22 µF 1:1 1 2 UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R111-004,A UTC TA7611AP LINEAR INTEGRATED CIRCUIT TEST CIRCUIT 3 TEST CIRCUIT 4 UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R111-004,A UTC TA7611AP LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R111-004,A