Patent ID: 7904037

Claim:
A transmitter of a wireless radio frequency (RF) communications device, the wireless RF communications device performing spread spectrum modulation, the transmitter comprising: a complex mixer; and a phase lock loop that is operatively coupled to the complex mixer, the phase lock loop employing CMOS technology, the phase lock loop comprising: a filter operatively coupled to the complex mixer, a tunable oscillator including a tuning input and an oscillator output, the oscillator output of the tunable oscillator being tunable as a function of the tuning input, a second mixer operatively coupled to the tunable oscillator of the phase lock loop and to a local oscillator of the wireless RF communications device, and a phase detector including a first input, a second input and an output, the first input being operatively coupled to the second mixer, the second input being operatively coupled to the filter, the output being operatively coupled to the tuning input.