Patent ID: 7919998
Filing Date: 2011-04-05
Classification: H03F,H03K

Abstract:
1. A waveform generator comprising: a reference waveform generator responsive to a clock signal to generate at least first and second reference signals, the first and second reference signals each generated with a phase and a frequency based on the clock signal, the phase of the first and second reference signals controlled with a changeable value stored in a register included in the reference waveform generator, where the reference waveform generator is operable in a master mode in which the first and second reference signals are generated based on the clock signal being a fixed clock signal generated internal to the reference waveform generator, and a slave mode in which the first and second reference signals are generated with the clock signal being an externally generated clock signal; and a triangle waveform generator generating a first triangle waveform signal based on the frequency and phase of the first reference signal, and generating a second triangle waveform signal based on the frequency and phase of the second reference signal.