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| NTE1579 Integrated Circuit Fm-IM Amplifier/Demodulator Features: D Wide Range of the Operating Supply Voltage D Low Distortion: THD = 0.06% Typ. D High Signal-to-Noise Ratio: S/N = 75dB Typ. D High Input SensitivityL Vin (lim) = 31dB Typ. D Capable of Driving the Signal Meter Under Low Input Signal D High Stability Against Abnormal Oscillation Functions: D FM IF Amplifier D Quandrature Detector D Audio Post-Amplifier D Muting Circuit D AFC, Center Meter Driver D Muting Control Driver D Analog Control Driver Absolute Maximum Ratings: Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Power Dissipation (TA = +60C), PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 624W Operating Temperature Range, Topt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125C DC Electrical Characteristics: (TA = +25C, VCC = 8V, Vin = 0dB) Parameter Symbol V1 V2 V3 V6 V7 V10 Test Conditions Min - - - - - - Typ 1.95 1.95 1.95 5.60 5.60 5.60 Max - - - - - - Unit V V V V V V DC Voltage at Pin 1 DC Voltage at Pin 2 DC Voltage at Pin 3 DC Voltage at Pin 6 DC Voltage at Pin 7 DC Voltage at Pin 10 AC Electrical Characteristics: (TA = +25C, VCC = 8V, fc = 10.7MHz, fm = 1kHz, f = 75kHz dev.) Parameter Operating Current Limiting Sensitivity Recovered Output Total Harmonic Distortion Signal-to-Noise Ratio AM Rejection Muting Attenuation Muting Band Width Muting Sensitivity Analogue Control Voltage Symbol ICC Vin(lim) VO(AF) THD S/N AMR Mute(ATT) BW(Mute) Vin(Mute) V13-0 V13-60 V13-100 AGC Control Voltage V15 Vin = 100dB, fm(AM) = 1kHz, 30% MOD Vin = 100dB, V5 = 2V Detuned Frequency under 1.4V of Pin = 12V, Vin = 100dB Vin under 1.4V of Pin 12 Voltage Pin 13 voltage under Vin = 0dB Pin 13 voltage under Vin = 60dB Pin 13 voltage under Vin = 100dB Pin 13 voltage under Vin = 86dB Pin Connection Diagram Test Conditions Vin = 100dB, Mute ON at -3dB Vin = 100dB Min - - 230 - 67 45 68 - - - - - - Typ 32 31 300 0.06 75 55 75 100 35 0.2 1.65 4.7 3.7 Max 39 37 390 0.3 - - - - - - - - - Unit mA dB mVrms % dB dB dB kHz dB V V V V IF Input AM FM Switch Circuit AM FM Switch Circuit Substrate GND Muting Switch Circuit Audio Output AFC Output IF Output 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Substrate GND Delayed AGC Substrate GND Tuning Meter Circuit To MPX IC VCC DC Reference Bias Quadrature Input 16 9 .260 (6.6) Max 1 8 .785 (19.9) Max .300 (7.62) .200 (5.08) Max .245 (6.22) Min .100 (2.54) .700 (17.7) |
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