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 (75kΩ 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 = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Power Dissipation (TA = +75°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Lamp Drive Current, IL Continuos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75mA Peak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +125°C Electrical Characteristics: (TA = +25°C, VCC = 13V, f = 1kHz, unless otherwise specified) Parameter Symbol Input Impedance Zin Channel Separation Sep Stereo Total Harmonic Distortion ST, THD Test Conditions P = 30mV L+R = 270mV Min Typ Max Unit 30 75 − kΩ 100Hz − 40 − dB 1kHz 35 45 − dB 100Hz − 0.04 − % 1kHz − 0.02 0.08 % 10kHz − 0.05 − % Electrical Characteristics (Cont’d): (TA = +25°C, VCC = 13V, f = 1kHz, unless otherwise specified) Parameter Symbol Output Voltage Min Typ Max Unit 185 240 310 mV CB − 0 − dB Mono, THD − 0.01 0.08 % L(ON) 8 11.5 15 mV − 4 − dB 19kHz 55 60 − dB 38kHz − 35 − dB P = 30mV L+R = 270mV, SCA = 30mV, fsca = 67kHz − 80 − dB VOUT Channel Balance Monaural Total Harmonic Distortion Pilot Level for Lamp ON Test Conditions Vin = 300mV Stereo Lamp Hysteresis Carrier Leak CL SCA Rejection Ratio P = 30mV L+R = 270mV SCAm Rej Signal−to−Noise Ratio S/N Vin = 300mV, Rg = 4.7kΩ 80 86 − dB Capture Range CR P = 30mV − ±3.5 − % Max Input Signal Vin P = 10%, L+R =90%, THD ≤ 0.5% − 1.2 − V Total Current Drain IT − 17 − mA Pin Connection Diagram VCC 1 16 VCO VIN 2 15 DC Amp Output Preamp Output 3 14 DC Amp Input Pilot Cancel Adjust 4 13 LPF Decoder Output 5 12 Phase Delay Cap Decoder Output 6 11 3.3μF Cap GND 7 10 3.3μF Cap Stereo Indicator Lamp 8 9 Gain Adjust 16 9 1 8 .260 (6.6) Max .870 (22.0) Max .200 (5.08) Max .100 (2.54) .700 (17.78) .099 (2.5) Min