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| NTE1655 Integrated Circuit TV Stereo Decoder Description: The NTE1655 is a TV stereo decoder integrated circuit in a 16-Lead DIP type package designed for television stereo. An L-R output is provided to drive further audio processing. Features: D Low Impedance L + R and L - R Outputs D Mono/Stereo Switching and Indication D Low Distortion - 0.10% typical Applications: D Stereo Television Sets D Stereo Adapters D Cable Television Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Power Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1800mW Derate Above 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mW/C Operating Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +85C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Lamp Drive Voltage Max Voltage at Pin7 with Lamp "Off" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Lamp Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA Electrical Characteristics: (TA = +25C, VCC = 12V unless otherwise specified) Parameter DC (VIN = 0) Supply Current Output Voltage VCC = 16V Pin4 Pin5 Output Impedance Lamp Leakage Lamp Saturation Voltage Pin4, Pin5 Lamp OFF, Pin7 Voltage = 16V Lamp ON, Pin7 Current = 100mA 15.0 1.7 1.7 - - - 33.5 3.5 3.8 100 - - 50.0 5.0 5.0 300 0.1 2.0 mA V V W mA V Test Conditions Min Typ Max Unit Electrical Characteristics (Cont'd): (TA = +25C, VCC = 12V unless otherwise specified) Parameter Test Conditions Min Typ Max Unit Audio (Composite signal with 38kHzsubcarrier and 10% 19kHz pilot, fmod = 1kHz. Adjust P1 for 19kHz 10Hz. L + R Channel Gain L + R Channel THD Gain Ratio, L + R Channel to L - R Channel Supply Rejection DC Output Shift, Mono-to-Stereo Input Impedance PLL Pilot Level for Lamp ON Pilot Level for Lamp OFF Capture Range Pilot = 25mVrms Pin Connection Diagram 12 3 0.5 - - - 20 10 - mV mV % VIN = 2.5VP-P L = R, Pilot OFF, Pin4 VIN = 2.5VP-P L = R, Pilot OFF, Pin4 VIN = 2.5VP-P, L Only 100mVrms, 1kHz ON Supply, VIN = 0 Pilot OFF to ON, Pin4, Pin5 Pin1 0.8 - -2.0 30 - 15 1.0 0.1 0.0 60 - 50 1.2 1.0 2.0 - 20 150 % dB dB mV k Composite Input 0.0082F to Pin12 L + R Feedback L + R Input L - R Feedback L - R Output Stereo Indicator LED GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC VCO Adjust Phase Detector Filter Phase Detector Filter To Pin2 15.734kHz Monitor Stereo/Mono Switch Stereo/Mono Switch 16 9 .260 (6.6) Max 1 8 .785 (19.9) Max .200 (5.08) Max .245 (6.22) Min .100 (2.54) .700 (17.7) .300 (7.62) |
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