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Si4133 Si4123/22/13/12
DUAL-BAND RF SYNTHESIZER WITH INTEGRATED VCOS FOR WIRELESS COMMUNICATIONS
F E AT U R E S
Dual-band RF synthesizers Low phase noise
RF1: 900 MHz to 1.8 GHz
Programmable powerdown modes
RF2: 750 MHz to 1.5 GHz
1 µA standby current
IF synthesizer
18 mA typical supply current
IF: 62.5 to 1000 MHz
2.7 to 3.