SI4133W synthesizer equivalent, rf synthesizer.
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.
Single-mode W-CDMA wireless handsets, terminals, and modems Dual-mode GSM/UMTS wireless handsets, terminals, and modems
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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 .
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