DUTY CYCLE CORRECTION APPARATUS AND SEMICONDUCTOR INTEGRATED CIRCUIT HAVING THE SAME

摘要

A duty cycle correction apparatus and a semiconductor ID including the same for improving the power efficiency are provided to supply the clock having duty property and reduce signal distortion. A phase splitter produces rising clock and falling clock and controls the phase of the DLL clock. A first clock delay unit generates rising clock and generates delay rising clock in response of control signal. A second clock delay unit generates polling clock and generates delay polling clock in response of control signal. A duty ratio correction unit(30) produces the correction rising clock and the correction falling clock toggling according to the edge timing of the delay falling clock and delay rising clock. The control signal generating unit produces the control signal of the n bit in response to the sensing signal.