Delay locked loop

Details Delay locked loop Delay locked loop

2006-06-13

2006-06-13

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S047000

Reexamination Certificate

active

07061287

ABSTRACT:
Provided is a delay locked loop comprising: a delay unit for delaying a clock supplied from an external chipset by a predetermined delay amount; a replica for delaying the clock delayed in the delay unit by a delay amount of a clock path and a data path; and a phase detector for generating a signal for controlling the delay amount of the delay unit comparing the clock supplied from the external chipset with a phase of an output of the replica, and generating a reset signal through detection of a change of a clock frequency supplied from the external chipset.

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