Delay locked loop

The invention in a delay-locked loop apparatus of the dual-loop structure having a duty cycle compensation, according to the locking (locking) the supply voltage (Vdd) value change after the clock two input clock DCC phase mixer (Rising CLK, Falling CLK ) so as to reset the phase lock loop delay when a particular delay value of at least solves the problems with the operation of the delay lock loop. To this end, the present invention is a delay-locked loop having a duty cycle compensation for receiving the first clock and the second clock; After locking of the clock according to the variation of the supply voltage not less than the first clock and the second clock delay value is the phase difference provides a predetermined delay-locked loop device including a reset control means for resetting the delay lock loop. The duty cycle correction, delay-locked loop, the reset, the jitter, delay,