SN761631 Datasheet, PDF (7/26 Pages) Texas Instruments – RF FRONT END FOR AM/FM IF SAMPLING RADIO

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