Method of sampling data and a circuit for sampling data

摘要

The present invention relates to a method of sampling a received digital data stream. The method comprises: generating a first sampling clock in dependence on a detected rate of said received digital data stream for sampling at a first time within a bit period of said received digital data stream; detecting a shape of a data eye of data within said received digital data stream; and generating a second sampling clock interleaved with said first sampling clock for sampling at a second different time within a bit period the second sampling clock being offset from said first sampling clock by an amount dependent on the detected shape of the data eye.