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| Datasheet File OCR Text: |
| NTE1491 Integrated Circuit AM RF/IF Amp Description: The NTE1491 is an integrated circuit in a 14-Lead DIP type package designed for AM/FM receivers. Features: D Low External Parts D IF, RF, AGC, in One Single Package D Dual AGC Amps Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Signal Input Voltage, Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Vp-p Total Power Dissipation (TA = +75C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350mW Operating Temperature Range, Topt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +75C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +125C Recommended Operating Condition: (TA = +25C unless otherwise specified) Parameter Supply Voltage Symbol VCC Min 9 Typ 13 Max 16 Unit V Electrical Characteristics: (TA = +25C, VCC = 13V, f = 1MHz, fmod. = 400Hz, MOD = 30%, RL = 10k unless otherwise specified) Parameter Idle Current Maximum Sensitivity Signal Noise Detector Voltage Out Total Harmonic Distortion Symbol ICC MS S/N o THD o = 20mVrms i = 74dBV i = 74dBV i = 126dBV Test Conditions Min 18 - 48 40 - Typ 26 10 55 60 0.4 Max 34 17 - 90 3 Unit mA dB/V dB mVrms % Tuner Performance: (TA = +25C, VCC = 13V, f = 1MHz, fmod. = 400Hz, MOD = 30%, RL = 10k unless otherwise specified) Characteristics Maximum Sensitivity Usable Sensitivity (i) Distortion Output Voltage Harmonic Distortion S/N Ratio Total Harmonic Distortion IF Rejection Ratio Image Rejection Ratio Selectivity AM Whistle Rejection Test Conditions o = 20mVrms S/N = 20dB i = 74 dBV i = 74dBV i = 74dBV i = 126dB f = 1MHz, o = 20mV, IF = 450kHz f = 1MHz, o = 20mV, f + 2 IF f = 1MHz, f = 10kHz 2nd IF = 900kHz i = 74dBV 3rd IF = 1350kHz Pin Connection Diagram Typ 10 24 60 0.4 55 0.4 67 80 31 45 50 Unit dBV dBV mVrms % dB % dB dB dB dB dB Mixer Output 1 IF Input 2 Bypass 3 IF Output 4 AGC Input 5 Bypass 6 GND 7 14 VCC 13 OSC Output 12 OSC Input 11 Mixer Input 10 RF Output 9 Bypass 8 RF Input 14 1 8 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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