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SN761681 Datasheet(PDF) 9 Page - Texas Instruments |
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SN761681 Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 20 page  www.ti.com ELECTRICAL CHARACTERISTICS, Mixer, Oscillator, IF Amplifier SN761681 TV TUNER IC SLES165 – DECEMBER 2005 V CC = 5 V, TA = 25°C, measured in Figure 17 reference measurement circuit at 50-Ω system, IF filter characteristics: f peak = 43 MHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Gc1 fin = 58 MHz(1) 22 25 28 dB Conversion gain (mixer-IF amplifier), VHF-LOW Gc3 fin = 130 MHz(1) 22 25 28 Gc4 fin = 136 MHz(1) 22 25 28 dB Conversion gain (mixer-IF amplifier), VHF-HIGH Gc6 fin = 364 MHz(1) 22 25 28 Gc7 fin = 370 MHz(1) 26 29 32 dB Conversion gain (mixer-IF amplifier), VHF-UHF Gc9 fin = 804 MHz(1) 25 28 31 NF1 fin = 55.25 MHz 9.5 Noise figure, VHF-LOW dB NF3 fin = 127.25 MHz 9.5 NF4 fin = 133.25 MHz 10 Noise figure, VHF-HIGH dB NF6 fin = 361.25 MHz 10 NF7 fin = 367.25 MHz 11 Noise figure, UHF dB NF9 fin = 801.25 MHz 11 CM1 fin = 55.25 MHz(2) 89 1% cross-modulation distortion, dBµV VHF-LOW CM3 fin = 127.25 MHz(2) 89 CM4 fin = 133.25 MHz(2) 86 1% cross-modulation distortion, dBµV VHF-HIGH CM6 fin = 361.25 MHz(2) 86 CM7 fin = 367.25MHz(2) 87 1% cross-modulation distortion, UHF dBµV CM9 fin = 801.25 MHz(2) 87 VIFO1 fin = 55.25 MHz(3) 117 IF output voltage, VHF-LOW dBµV VIFO3 fin = 127.25 MHz(3) 117 VIFO4 fin = 133.25 MHz(3) 117 IF output voltage, VHF-HIGH dBµV VIFO6 fin = 361.25 MHz(3) 117 VIFO7 fin = 367.25MHz(3) 117 IF output voltage, UHF dBµV VIFO9 fin = 801.25 MHz(3) 117 Φ OSC1 fin = 55.25 MHz(4) 88 Phase noise, VHF-LOW dBc/Hz Φ OSC3 fin = 127.25 MHz(4) 88 Φ OSC4 fin = 133.25 MHz(4) 86 Phase noise, VHF-HIGH dBc/Hz Φ OSC6 fin = 361.25 MHz(4) 86 Φ OSC7 fin = 367.25MHz(4) 84 Phase noise, UHF dBc/Hz Φ OSC9 fin = 801.25 MHz(4) 84 Prescaler beat(5) 25 dBµV (1) IF = 43 MHz, RF input level = 80 dBµV (2) fundes = fdes ±6 MHz, Pin = 80 dBµV, AM 1 kHz, 30%, DES/CM = S/I = 46 dB (3) IF = 45.75 MHz (4) Offset = 10 kHz, RF input level = 70 dB µV (5) Design parameter, not tested 9 |
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