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| NTE1482 Integrated Circuit PLL FM Stereo Demodulator w/ Pilot Cancel Features: D External parts are small. Coil is not used. D Pilot cancel function built-in. D Other functions: stereo demodulation, stereo/monaural automatic changeover and stereo indicator lamp driving circuit. D Stereo indicator lamp lighting and stereo/Monaural changeover operations are synchronous. D Low distortion by the adoption of 100% local feedback circuit. (0.01% typ., 300mV Monoaural input.) D High input impedance (75k typ.) D High S/N. (86dB typ. 300mV input) D Distortion factor improved by PLL circuit (0.06% typ. 10kHz, Main-ch input) Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Power Dissipation (TA = +75C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Lamp Drive Current, IL Continuos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75mA Peak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +75C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125C Electrical Characteristics: (TA = +25C, VCC = 13V, f = 1kHz, unless otherwise specified) Parameter Input Impedance Channel Separation Stereo Total Harmonic Distortion Symbol Zin Sep ST, THD P = 30mV L+R = 270mV 100Hz 1kHz 100Hz 1kHz 10kHz Test Conditions Min 30 - 35 - - - Typ 75 40 45 0.04 0.02 0.05 Max - - - - 0.08 - Unit k dB dB % % % Electrical Characteristics (Cont'd): (TA = +25C, VCC = 13V, f = 1kHz, unless otherwise specified) Parameter Output Voltage Channel Balance Monaural Total Harmonic Distortion Pilot Level for Lamp ON Stereo Lamp Hysteresis Carrier Leak SCA Rejection Ratio Signal-to-Noise Ratio Capture Range Max Input Signal Total Current Drain CL SCAm Rej S/N CR Vin IT Pin Connection Diagram VCC 1 VIN 2 Preamp Output Pilot Cancel Adjust Decoder Output Decoder Output GND Stereo Indicator Lamp 16 Symbol VOUT CB Mono, THD L(ON) Test Conditions Vin = 300mV Min 185 - - 8 - Typ 240 0 0.01 11.5 4 60 35 80 86 3.5 1.2 17 Max 310 - 0.08 15 - - - - - - - - Unit mV dB % mV dB dB dB dB dB % V mA P = 30mV L+R = 270mV P = 30mV L+R = 270mV, SCA = 30mV, fsca = 67kHz Vin = 300mV, Rg = 4.7k P = 30mV 19kHz 38kHz 55 - - 80 - - - P = 10%, L+R =90%, THD 0.5% 16 VCO 15 DC Amp Output 14 DC Amp Input 13 LPF 12 Phase Delay Cap 11 3.3F Cap 10 3.3F Cap 9 Gain Adjust 9 3 4 5 6 7 8 1 8 .260 (6.6) Max .200 (5.08) Max .870 (22.0) Max .100 (2.54) .700 (17.78) .099 (2.5) Min |
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