A system for generating an RFPWM signal comprises a delta sigma modulator having a plurality of outputs, a phase-locked loop comprising a plurality of phase quantization outputs, at least one multiplexer having a plurality of signal inputs, a plurality of selector inputs, and at least one output, the signal inputs communicatively connected to the phase quantization outputs of the phase-locked loop and the selector inputs electrically connected to the outputs of the delta sigma modulator, and a driver having an input communicatively connected to the output of the multiplexer and an output generating an RFPWM signal. A method of generating an RFPWM signal is also described.