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SN761631 Datasheet(PDF) 7 Page - Texas Instruments |
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SN761631 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 26 page www.ti.com AC ELECTRICAL CHARACTERISTICS Voltage-Controlled Oscillator Crystal Oscillator PLL Synthesizer SN761631 RF FRONT END FOR AM/FM IF SAMPLING RADIO SLES182 – OCTOBER 2006 V CC = 8.5 V, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Fosc Oscillator frequency 159.9 248.2 MHz C/N Carrier-to-noise ratio F = 200 MHz at 10 KHz, B = 1 Hz 97 dBc V CC = 8.5 V, TA = 25°C (unless otherwise noted) PARAMETER MIN TYP MAX UNIT F_xtal Oscillator frequency 20.5 MHz Va_xtal Crystal voltage 190 mV Rin_Xtal Real part of input impedance –250 Ω V CC = 8.5 V, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Np Programmable divider ratio 1024 32767 Charge Pump Isink Charge pump_1 sink current Weather band mode 0.875 µA Isource Charge pump_1 source current Weather band mode –0.875 µA Isink Charge pump_1 sink current MW/LW 1.01 mA Isource Charge pump_1 source current MW/LW –1.01 mA Isink Charge pump_1 sink current AM/SW band 0.875 mA Isource Charge pump_1 sink current AM/SW band –0.875 mA Isink Charge pump_2 sink current FM JPN/STD/EE 0.42 mA Isource Charge pump_2 source current FM JPN/STD/EE –0.42 mA Charge Pump/High Current Isink Low charge pump_3 sink current FM JPN/STD 3.3 mA Isource Low charge pump_3 source current FM JPN/STD –3.3 mA 7 Submit Documentation Feedback |
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