Patent ID: 9130588
Filing Date: 2015-09-08
Classification: H03K,H03L,H03M

Abstract:
1. An apparatus configured to receive an input signal and a digital value representative of a target time delay and to provide a representation of the input signal delayed by the target time delay, the apparatus comprising: a control module configured to receive the digital value; a coarse delay stage arranged to receive the input signal and to provide a coarse delayed representation of the input signal using a selected coarse delay interval, the selected coarse delayed interval based on a coarse delay setting received from the controller; and a fine delay stage arranged to provide a fine delay interval from a set of overlapping fine delay intervals, based on a fine delay setting received from the controller, wherein a first fine delay interval selection from the set of overlapping fine delay intervals can provide the fine delay; wherein a second fine delay interval selection from the set of overlapping fine delay intervals can provide the fine delay, the second fine delay selection different from the first fine delay selection; wherein a combination of the selected course delay interval and the fine delay is configured to provide the target time delay; and wherein the control module includes a random generator arranged to select one of the first fine delay interval or the second fine delay interval.