Method for controlling the loop delay in a sigma-delta modulator, and sigma-delta modulator implementing said method

Abstract

In a method for controlling the loop delay in a sigma-delta modulator having a loop including an integrator, an analog-to-digital converter, a digital-to-analog converter, and an adder-subtractor, at least one phase-control programmable digital command representing a phase shift is applied to one of the clock signals of the converters of the loop to adjust the relative phase between a clock signal of the analog-to-digital converter and a clock signal of the digital-to-analog converter. A sigma-delta modulator for converting an analog signal implements the method.

Dependencies are inferred from the claim text.