SI4133W Datasheet (Silicon Laboratories)

SI4133W, RF SYNTHESIZER

The Si4133W is a monolithic integrated circuit that performs RF and IF synthesis for GSM/GPRS and W-CDMA wireless communications.

In dualmode GSM/UMTS handsets, the Si4133W meets demanding requirements for very low phase noise and fast settling time for both modes.

The Si4133W integrates three compl

SI4133W Features

* Dual RF synthesizers RF1: 2.3 GHz to 2.6 GHz RF2: 750 MHz to 1.7 GHz IF synthesizer IF: 62.5 MHz to 1.0 GHz Integrated VCOs, loop filters, dividers, and phase detectors Minimal external components Continuous operation over a wide temperature range Fast settling time: 200 µsec Low phase noise 5 µA