DCC CIRCUIT AND DLL CIRCUIT WITH DCC

摘要

A DCC(Duty Cycle Correction) circuit and a DLL(Delay Locked Loop) circuit using the same are provided to prevent the generation of an internal clock not reflecting the variation of inner delay factor generated by external influence like power supply voltage variation. A clock input part generates a first and a second internal clock signal by receiving a first and a second clock input signal and an enable signal, from the first clock signal and an inversion signal thereof when the enable signal is enabled. A duty cycle mixing part(300) mixes phases of the first and the second internal clock signal.