FREQUENCY SYNTHESIZER WITH ACOUSTIC RESONANCE VCO

摘要

A frequency synthesizer (30) is constructed to include a reference oscillator (12,14), a phase comparator (16) having a first input coupled to an output of said reference oscillator (12,14) and outputting a frequency tuning voltage; a VCO (32) having an input coupled to the frequency tuning voltage and outputting an output frequency signal and a programmable divider (22) coupled to the output frequency signal and providing a divided output frequency signal to a second input of the phase comparator (16). In the presently preferred embodiment the VCO (32) includes at least one acoustic resonator (40).