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NTE749 Integrated Circuit TV Video IF Amp
Features: D High Power Gain: 46dB (Typ) f = 58MHz D Wide AGC Range: 60dB (Min) D Low Reverse Transfer Admittance: yr -1.0 (Typ) D Nearly Constant Input and Output Admittance over AGC Range D Control Signal Available for Delayed Forward AGC of Tuner D Control Signal Available for Delayed of FET Tuner D Either Positive or Negative Going Video Signals Absolute Maximum Ratings: Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Output Voltage, V7, V8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Input Voltage, V1, V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Vp-p AGC Input Voltage, V6, V10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Gate Input Voltage, V5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10, -20V Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625mW Derated Above TA = 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0mW/C Min. Load Resistance, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4k Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +75C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +150C Electrical Characteristics: (VCC = 12V, TA = +25C unless otherwise specified)
Parameter Supply Current Output Current Power Dissipation Power Gain Noise Figure Maximum Output Voltage Symbol ICC IOUT PD Gp NF VOM f = 58MHz f = 58MHz,Rg = 50 0dB AGC -30dB AGC Test Conditions Min - - - 42 - 350 200 Typ 27 5.7 324 46 8.5 - - Max 31 - 372 - - - - Unit mA mA mW dB dB mVrms
Electrical Characteristics (Cont'd): (VCC = 12V, TA = +25C unless otherwise specified)
Parameter AGC AGC Range RF-AGC Symbol AGC V12(Max) V12(Min) Power Gain Variations Input Admittance Input Acceptance Output Admittance Output Acceptance Forward Transfer Admittance GP gi bi go bo yf Pin Connection Diagram IF Input 1 Bypass 2 GND 3 GND 4 Keyer Pulse 5 Video & Ref DC Inputs 6 IF Output 7 14 IF AGC Filter 13 RF AGC Delay Voltage 12 RF AGC Output 11 VCC 10 Video & Ref DC Inputs 9 AGC Storage Capacitor 8 IF Output
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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