Method and digital circuit for generating a waveform from stored digital values

摘要

In a particular embodiment, a method includes adjusting an input to a divider on a feedback path of a phase locked loop circuit based on a stored digital value representing a portion of a time-based waveform that is applied to a modulator circuit. The stored digital value is retrieved based on an output of the feedback path.

主权项

1. A method comprising:
providing a selected control input to a modulator circuit based on a control value at a multiplexer, wherein, when the control value is a first value, the selected control input includes a seed value and excludes a time-based waveform generated by a waveform generator based on a stored digital value; and selectively adjusting an input to a divider on a feedback path of a phase locked loop circuit based, at least in part, on an output of the modulator circuit; wherein the stored digital value is retrieved based on an output of the feedback path.