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| NTE709 Integrated Circuit TV/FM Sound IF Amplifier Description: The NTE709 is a monolithic integrated circuit in a 14-Lead DIP type package providing a multi-stage wideband amplifier/limiter, an FM quadrature detector, and an emitter-follower audio output stage and is designed for use in FM receivers or in sound IF of TV receivers. Features: D Good Sensitivity D Excellent AM Rejection D Low Harmonic Distortion D Single-Adjustment Timing D High gain to 50MHz D 500mV Recovered Audio at 10.7MHz D Wide Operating Voltage Range Absolute Maximum Ratings: Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Package Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670mW Derate Above +70C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3mW/C Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +85C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Static Electrical Characteristics: (VCC = 12V, TA = +25C unless otherwise specified) Parameter Supply Current Terminal Voltage Symbol ICC V1 V2 V6 V9 V10 Test Conditions Min 12 4.3 - - - - Typ 17 5.0 3.65 1.45 1.5 1.45 Max 27 6.3 - - - - Unit mA V V V mV V Static Electrical Characteristics (Cont'd): (VCC = 12V, TA = +25C unless otherwise specified) Parameter Detector Output Resistance IF Input Resistance IF Output Resistance Detector Input Resistance De-Emphasis Resistance IF Input Capacitance Detector Input Capacitance Symbol R1 R4 R10 R12 R14 C4 C12 Test Conditions Min - - - - 6 - - Typ 200 5.0 60 70 9 11 2.7 Max - - - - 12 - - Unit k k k pF pF Dynamic Characteristics: (VCC = 12V, TA = +25C, fo = 10.7MHz, fm = 400Hz, f = 75kHz, Peak Separation = 550kHz unless otherwise specified) Parameter Amplifier Voltage Gain Amplifier Output Voltage Input Limiting Threshold Recovered Audio Output Total Harmonic Distortion AM Rejection Symbol Ae Vout VTH Vout THD AMR Test Conditions Vin 300Vrms Vin = 10mVrms Note 1 V12 = 60mVrms 100% FM Modulation Vin = 10mVrms, Note 2 Min - - - - - - Typ 53 1.45 400 500 1.0 40 Max - - 800 - - - Unit dB VP-P Vrms mVrms % dB Note 1. The input limiting threshold is the FM input voltage for a recovered audio output which is 3dB less than the recovered audio for an FM input voltage of 200mVrms. Note 2. The amplitude modulation rejection is determined by: AMRdB = 20 log Vout for 100% FM Vin / Vout for 30% AM Vin Pin Connection Diagram Detector Output 1 Reference 2 N.C. 3 IF Input 4 Decoupling 5 IF Input Ref 6 GND 7 14 De-Emphasis 13 VCC 12 Det Input 11 Test Point 10 Amplifier Output 9 Amplifier Low Output 8 N.C. 14 8 1 7 .785 (19.95) Max .200 (5.08) Max .300 (7.62) .100 (2.45) .600 (15.24) .099 (2.5) Min |
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