NTE1541

NTE1541 Integrated Circuit FM IF Amp & Detector for Car Radio Features: D FM IF amplifier and limiter D Demodulated output: 600mVrms (Max.) D Total harmonic distortio: 0.3% (Max.) Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Maximum Supply Voltage, VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Maximum Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7Vrms Allowable Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +80°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +125°C Note 1. Derate by 4mW per 1°C when used at temperatures above +25°C. Recommended Operating Conditions: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Electrical Characteristics: (TA = +25°C, VCC = 12V, f = 10.7MHz, fm = 400Hz 100% Modulation) Parameter Current Drain Output Pin (Pin 7) DC Voltage Demodulated Output Input Limiting Voltage Total Harmonic Distortion Signal−to−Noise Ratio AM Rejection Ratio Output Resistance Symbol ICC V7 VO VIN(lim) THD S/N AMR RO f = 400Hz VIN = 80dBμ −3dB limiting VIN = 80dBμ Test Conditions Min 8 3.7 400 − − 70 47 6.2 Typ 12 − − 50 0.2 80 53 7.7 Max 15 5.2 600 55 0.3 − − 9.5 Unit V V mVrms dBμ % dB dB kΩ Pin Connection Diagram 7 6 5 4 3 2 1 Demod Output Detector Tank Detector Tank GND VCC Bypass IF Input .862 (21.8) .118 (3.0) .039 (1.0) .059 (1.5) .117 (4.5) 1 .110 (2.8) .009 (0.22) .047 (1.19) 7