Si4112 - DUAL-BAND RF SYNTHESIZER
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 ser
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 3.6 V operation Integrated VCOs, loop filters, Packages: 24-pin TSSOP, varactors, and reson
