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| NTE1527 Integrated Circuit FM, IF Amp/AFC & Meter Driver Function: D FM Section: IF Amp., Det., Driver for Tuning Meter D AM Section: Conv., IF Amp Features: FM D Incorporates a Full-Balance Differential Circuit to Obtain Stable, High Gain in the IF Amplifying Stage D Incorporates a Low-Distortion, Quadrature Detection Circuit (0.3% distortion at 100% modulation). D The Tuning Meter's Driver Voltage is Logarithmic to Input AM D A High-Gain IF Amplifying Stage, with Input Level Allowable up to 100dB. D The Frequency Converting Stage Consists of a Single Transistor, while the Base, Emitter, and Collector are Provided with Pins to Ensure Handling Ease. Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage (Note 1), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V Power Dissipation, PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125C Note 1. Standard Operating Voltage = 5.5V Electrical Characteristics: (TA = +25C unless otherwise specified) Parameter FM Limiting Sensitivity Recovered AF Voltage Total Harmonic Distortion Signal-to-Noise Ratio AM Rejection Ratio Symbol Vin(lim) VO THD S/N AMR Test Conditions Min - - - - - Typ 30 430 0.3 76 55 Max - - - - - Unit dB mV % dB dB -3dB point 106dB, 10.7MHz Mod. = 400Hz and 100% FM = 100%, 400Hz, FM 106dB, AM = 30%, 1kHz mod. Electrical Characteristics (Cont'd): (TA = +25C unless otherwise specified) Parameter Signal Meter Output Detector Output Voltage DC Offset AM IF Sensitivity Symbol VM VO-VR Test Conditions Min - - - - Typ 1.6 310 -90 32 Max - - - - Unit V mV mV dB 106dB 106dB, at 100kHz detuning Input Level at Output = 10mV (Mod. = 400Hz and 30%) Input = 74dB Mod. = 400Hz and 30% Between 100dB and it's -10dB Input Level at it s 10dB S/N = 20dB (VO-VR) (VO-VR) at 0dB SIF Recovered AF Voltage Total Harmonic Distortion Signal-to-Noise Ratio AGC Figure of Merit Usually Sensitivity VO THD S/N AGC SIF - - - - - 120 0.3 60 55 45 - - - - - mV % dB dB dB/m Note 2. FM Input Level; voltage level when SG output is terminated with SG's Rg. Note 3. AM Input Level; voltage level when SG output is open. Pin Connection Diagram 1.007 (25.5) Max 1st AM IF Input 17 FM IF Input 1 Bypass 2 Bypass 3 Decoupling 4 GND 5 FM Output 6 Detector 7 Phase Compensation 8 GND 18 16 AM Converter Output 15 AM OSC 14 AM Converter Input 13 Bypass 12 2nd AM IF Output 11 AGC Bias 10 VCC 9 Signal Meter Output .188 (4.77) .200 (5.08) 18 8 9 .964 (24.4) 17 1 16 .248 (6.3) .252 (6.4) .291 (7.4) Max .020 (.508) .051 (1.29) .100 (2.54) Typ 15 .009 (0.22) |
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