DUAL-BAND RF SYNTHESIZER WITH INTEGRATED VCOS FOR WIRELESS COMMUNICATIONS

Description The Si4133 is a monolithic integrated circuit that performs both IF and dual band RF synthesis for wireless communications applications. The Si4133 includes three VCOs, loop filters, reference and VCO dividers, and phase detectors. Divider and power down settings are programmable with

DUAL-BAND RF SYNTHESIZER WITH INTEGRATED VCOS FOR WIRELESS COMMUNICATIONS

FEATURES  Dual-band RF synthesizers RF1: 900 MHz to 1.8 GHz RF2: 750 MHz to 1.5 GHz  IF synthesizer IF: 62.5 to 1000 MHz  Integrated VCOs, loop filters, varactors, and resonators  Minimal (2) number of external components required  Low phase noise  Programmable powerdown mod