NTE801 Integrated Circuit FM Stereo Demodulator Description: The NTE801 is a monolithic device in a 14–Lead DIP type package designed for use in solid–state stereo receivers. Features: D Requires No Inductors D Low External Part Count D Only Oscillator Frequency Adjustment Necessary D Integral Stereo/Monaural Switch 75mA Lamp Driving Capability D Wide Dynamic Range: 0.5 to 2.8V(p–p) Composite Input Signal D Wide Supply Range: 8V to 14V D Excellent Channel Separation Maintained Over Entire Audio Frequency Range D Low Distortion: Typically 0.3% THD at 560mV (RMS) Composite Input Signal D Excellent SCA Rejection Absolute Maximum Ratings: (TA = +25° unless otherwise specified) Power Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V Lamp Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75mA Power Dissipation (Package Limitation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625mW Derate Above TA = +25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0mW/°C Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +85°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C Electrical Characteristics: (VCC = +12V, TA = +25°C, Vin = 560mVRMS (2.8V(P–P)), fm = 1kHz (L or R only), Pilot Level = 100mV(RMS) (10%), unless otherwise specified) Parameter Test Conditions Min Typ Max Unit Maximum Standard Composite Input Signal THD = 0.5% 2.8 – – VP–P Maximum Monaural Input Signal THD = 1.0% 2.8 – – VP–P Input Impedance Pin2 20 50 – kΩ 30 40 – dB Stereo Channel Separation Audio Output Voltage Desired Channel – 485 – mVrms Monaural Channel Balance Pilot Level = 0V – – 1.5 dB – < 0.3 – % 19kHz – 34.4 – dB 38kHz – 45 – dB SCA Rejection 67kHz, No Modulation, Measured 9kHz Beat – 75 – dB Stereo Switch Level Pilot Only, Lamp ON – 18 23 mVrms Pilot Only, Lamp OFF 5.0 10 – mVrms Total Harmonic Distortion Ultrasonic Frequency Rejection Capture Range Permissible Tuning Error – 3.5 – % Supply Current Lamp OFF – 13 – mA Pin Connection Diagram VCC 1 14 OSC RC Network Input 2 13 19kHz Loop Filter Audio Amp Output 3 Left Ch Output 4 Right Ch Output 5 14 8 1 7 12 19kHz Loop Filter 11 Demodulator Input 10 19kHz Output Lamp Indicator 6 9 Stereo Switch Filter GND 7 8 Stereo Switch Filter .785 (19.95) Max .300 (7.62) .200 (5.08) Max .100 (2.45) .600 (15.24) .099 (2.5) Min