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Si4133 Datasheet Dual-band Rf Synthesizer

Manufacturer: Skyworks Solutions

Overview: 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.

General Description

The Si4133 is a monolithic integrated circuit that performs both IF and dualband RF synthesis for wireless communications applications.

The Si4133 includes three VCOs, loop filters, reference and VCO dividers, and phase detectors.

Divider and powerdown settings are programmable with a threewire serial interface.

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