METHOD FOR TESTING A VARIABLE DIGITAL DELAY LINE AND A DEVICE HAVING VARIABLE DIGITAL DELAY LINE TESTING CAPABILITIES

摘要

A device and a method for testing a variable digital delay line that includes multiple taps. The method (330) includes providing (320), an input signal to the variable digital delay line and finding (340), for each tap out of a group of tested taps of the variable digital delay line, a variable delay unit configuration that provides a delay that is closest to a delay introduced by the tap; wherein the variable digital delay line and the variable delay unit belong to the same integrated circuit.