SI4123 Overview
http://..net/ RFLC GNDR RFLB RFLA GNDR GNDR RFOUT The Si4133 is a monolithic integrated circuit that performs both IF and dualband RF synthesis for wireless munications 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.
SI4123 Key Features
- 900 MHz to 1.8 GHz -RF2: 750 MHz to 1.5 GHz
- IF synthesizer
- varactors, and resonators Minimal (2) number of external ponents required
- Lead-free
