Patent ID: 8400196
Filing Date: 2013-03-19
Classification: G11C,H03K

Abstract:
1. A phase correction circuit comprising: a skew detection unit configured to generate first skew detection signals and second skew detection signals by comparing multi-phase signals with one another; a phase control signal generation unit configured to generate a plurality of phase control signals by combining the first skew detection signals with the second skew detection signals; and a phase adjustment unit configured to delay the multi-phase signals by a delay time corresponding to the plurality of the phase control signals, wherein the multi-phase signals comprise first to third phase signals, wherein the skew detection unit comprises: a first time/digital converter configured to generate the first skew detection signals by sampling the second phase signal on a basis of the first phase signal; and a second time/digital converter configured to generate the second skew detection signals by sampling the first phase signal on a basis of the third phase signal.