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| Datasheet File OCR Text: |
| NTE1490 Integrated Circuit FM/AM Radio Receiver System 16-Lead DIP Features: D Stability is improved by use of the full balance DC feedback type differential IF amplifier D High sensitivity (Input limiting sensitivity is 32dB) D Large detection output (450mVrms typ, 100% mod.) D Utilizing the external resistance it can be changed freely D High S/N (77dB) D Wide operation supply voltage Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36.4mA Power Dissipation, PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450mW Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +75C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125C Electrical Characteristics: (TA = +25C unless otherwise specified) Parameter FM Characteristics Quiescent Current Recovered AF Voltage Total Harmonic Distortion Limiting Sensitivity Signal to Noise Ratio AM Rejection Ratio Signal Meter Output AM Characteristics Recovered AF Voltage Total Harmonic Distortion Usualy Sensitivity Signal to Noise Ratio eO2 THD SIF S/N2 74dB eo2 = 10mVrms 74dB compared with eO2 80 - - - 110 0.3 31 55 160 2.0 37 - mVrms % dB dB lo eo1 THD Vin(lim) S/N AMR VM 106dB, RL = 20k 50s, de-emphasis -3dB point 106dB compared with eO1 106dB AM out as compared with eO1 106dB - 285 - - 67 35 1.34 24.7 450 0.3 32 77 50 1.60 36.4 600 1.0 37.5 - - 1.86 mA mVrms % dB dB dB VDC Symbol Test Conditions Min Typ Max Unit FM: AM: fc = 10.7MHz, fm = 400Hz, F = 75kHz Div fc = 455kHz, fm = 400Hz, 30% MOD Pin Connection Diagram IF Input (FM) AC GND (FM) DC Bias (FM) FM VCC GND Audio Output (AM) Det Input IF Output (FM) 1 2 3 4 NTE1490 5 6 7 8 12 11 10 9 AGC Input (AM) VCC FM Meter Output GND 16 15 14 13 IF Input (AM) Ref Bias (AM) AC GND (AM) IF Output (AM) 16 9 .260 (6.6) Max 1 8 .785 (19.9) Max .200 (5.08) Max .245 (6.22) Min .300 (7.62) .100 (2.54) .700 (17.7) |
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