Patent ID: 9306690
Filing Date: 2016-04-05
CPC Classification: H04B,H04J

Claim Text:
1. A transmitter comprising: an all digital first phase locked loop controlling a first oscillator and receiving a first phase modulated signal; an all digital second phase locked loop controlling a second oscillator and receiving a second phase modulated signal; a power amplifier driven by the outputs of the first and second phase locked loops; a divider deriving multiple phases from the first and second phase locked loops; and an edge rotator associated with each phase locked loop to form a respective output signal from a combination of the multiple phases, wherein the first and second oscillators operate at different frequencies, the frequency of the first oscillator is not an integer multiple of the frequency of the second oscillator, and the output signals are closer in frequency than the first and second oscillator frequencies, wherein an average of the frequencies of the output signals of each edge rotator of the first and second phase locked loops are the same.