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| Datasheet File OCR Text: |
| NTE715 Integrated Circuit TV Chroma IF Amp Description: The NTE715 is a combined two-stage chroma amplifier and functional control circuit. The input signal is received from the video amplifier and applied to Pin2 of the input amplifier stage. The first amplifier stage is part of the ACC system and is controlled by differential adjustment from the ACC input Pin1 and Pin14. The output of the 1st amplifier is directed to Pin6 from where the signal may be applied to the ACC detection system of the NTE714 or an equivalent circuit. The output at Pin6 is also applied to Pin7 which is the input to the 2nd amplifier stage. Another output of the 1st amplifier at Pin13 is directed to the killer adjustment circuit. The DC voltage level at Pin13 rises as the ACC differential voltage decreases with a reduction in the burst amplitude. At a pre-set conditions determined by the killer adjustment resistor the killercircuit is activated and causes the 2nd chroma amplifier stage to be cut off. The 2nd chroma amplifier stage is also gain controlled by the adjustment of DC voltage at Pin10. The output of the 2nd chroma amplifier stage is available at Pin9. Both amplifier outputs utilize emitter-followers with short-circuit protection. Absolute Maximum Ratings: (TA = +25C unless otherwise specified) DC Supply Voltage (Pin8 to Pin4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Device Dissipation (Up to TA = +70C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530mW Derate Above 70C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.7mW/C Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +85C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Lead Temperature (During Soldering, 1/32" (3.17mm) from seating plane, 10s max), TL . . +265C Electrical Characteristics: (TA = +25C unless otherwise specified) Parameter Static Characteristics Voltages Bias Reference Terminal Amplifier No. 1 Chroma Input Amplifier No. 1 Chroma Output Balanced Unbalanced Amplifier No 2 Chroma Input Amplifier No 2 Chroma Output Supply Current V7 V9 IT V12 V2 V6 S1 Open, S2 Open S1 Open, S2 Open S1 Open, S2 Open S1 Open, S2 Closed S1 Open, S2 Open S1 Closed, S2 Open S1 Open, S2 Open - - - - - - 17 17.3 1.75 20 13.5 1.5 20.6 24.5 - - - - - - 31 V V V V V V mA Symbol Test Conditions Min Typ Max Unit Electrical Characteristics: (TA = +25C unless otherwise specified) Parameter Dynamic Characteristics Amplifier No. 1 Voltage Gain Amplifier No. 2 Voltage Gain Maximum Chroma Output Voltage 10% Chroma Gain Control Reference Voltage AV1 AV2 V9 V8-V10 Eg = 50mVrms, adjust Chroma Gain Control to Change Vg to 10% of Maximum Chroma Output V9 S1 in Position 2, Eg = 50mVRMS, adjust "Killer Adjust" for an abrupt decrease in V9 Eg = 50mVRMS, adjust Chroma control to min. Chroma Output Eg = 30mVRMS Measure V6 Vg = 1.0V(RMS) Measure V7 14 - - 2.1 - 14 2 3.8 - - - 6.8 dB dB VRMS V Symbol Test Conditions Min Typ Max Unit Output Voltage, Killer Off - - 12 mVRMS Output Voltage, Chroma Bandwidth Amplifier No. 1 Amplifier No. 2 Amplifier No. 1 Input Impedance Amplifier No. 1 Input Capacitance Amplifier No. 1 Output Impedance Ampl. No. 2 Input Impedance Ampl. No. 2 Output Impedance V9 - - 12 mVRMS BW rI 1 ci 1 ro 1 ri 2 ro 2 - - - - - - - 12 30 2 4 85 2.1 85 - - - - - - - MHz MHz k pF k Pin Connection Diagram 14 8 ACC Input 1 Chroma 1 Input 2 Gain Preselect 3 GND 4 N.C. 5 Chroma 1 Output 6 Chroma 2 Input 7 14 ACC Input 13 Killer Adjust 12 Decouple 11 Decouple 10 Chroma Level Control 9 Chroma 2 Output 8 VCC 1 .785 (19.95) Max 7 .300 (7.62) .200 (5.08) Max .100 (2.45) .600 (15.24) .099 (2.5) Min |
Price & Availability of NTE715
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