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SN761678DCHR Datasheet(PDF) 10 Page - Texas Instruments |
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SN761678DCHR Datasheet(HTML) 10 Page - Texas Instruments |
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10 / 21 page  SN761678 TV/VCR TUNER SLES104 − DECEMBER 2003 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics (continued) mixer, oscillator, IF amplifier VCC = 5 V, TA = 25°C, measured in reference measurement circuit at 50-Ω system, IF filter characteristics: fPEAK = 43 MHz; unless otherwise noted PARAMETER CONDITION MIN TYP MAX UNIT Gc1 Gc3 Conversion gain (mixer to IF amplifier) VHF-low Fin = 58 MHz (Note 3) Fin = 130 MHz 22 22 25 25 28 28 dB Gc4 Gc6 Conversion gain (mixer to IF amplifier) VHF-high Fin = 136 MHz (Note 3) Fin = 364 MHz 22 22 25 25 28 28 dB Gc7 Gc9 Conversion gain (mixer to IF amplifier) VHF-UHF Fin = 370 MHz (Note 3) Fin = 804 MHz 26 25 29 28 32 31 dB NF1 NF3 Noise figure VHF-low Fin = 55.25 MHz Fin = 127.25 MHz (9.5) (9.5) dB NF4 NF6 Noise figure VHF-high Fin = 133.25 MHz Fin = 361.25 MHz (10) (10) dB NF7 NF9 Noise figure UHF Fin = 367.25 MHz Fin = 801.25 MHz (11) (11) dB CM1 CM3 1% cross modulation distortion VHF-low Fin = 55.25 MHz (Note 4) Fin = 127.25 MHz (89) (89) dBμV CM4 CM6 1% cross modulation distortion VHF-high Fin = 133.25 MHz (Note 4) Fin = 361.25 MHz (86) (86) dBμV CM7 CM9 1% cross modulation distortion UHF Fin = 367.25 MHz (Note 4) Fin = 801.25 MHz (87) (87) dBμV VIFO1 VIFO3 IF output voltage VHF-low Fin = 55.25 MHz (Note 5) Fin = 127.25 MHz 117 117 dBμV VIFO4 VIFO6 IF output voltage VHF-high Fin = 133.25 MHz (Note 5) Fin = 361.25 MHz 117 117 dBμV VIFO7 VIFO9 IF output voltage UHF Fin = 367.25 MHz (Note 5) Fin = 801.25 MHz 117 117 dBμV ΦOSC1 ΦOSC3 Phase noise VHF-low Fin = 55.25 MHz (Note 6) Fin = 127.25 MHz 88 88 dBc/Hz ΦOSC4 ΦOSC6 Phase noise VHF-high Fin = 133.25 MHz (Note 6) Fin = 361.25 MHz 86 86 dBc/Hz ΦOSC7 ΦOSC9 Phase noise UHF Fin = 367.25 MHz (Note 6) Fin = 801.25 MHz 84 84 dBc/Hz Prescaler beat (Note 7) (25) dBμV NOTES: 3. IF = 43 MHz, RF input level = 80 dBμV 4. Fundes = Fdes±6 MHz, Pin = 80 dBμV, AM 1 kHz, 30%, DES/CM = S/I = 46 dB 5. IF = 45.75 MHz 6. Offset = 10 kHz, RF input level = 70 dBμV 7. Design parameter, not tested. |
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