Locking state detector and DLL circuit having the same

Details Locking state detector and DLL circuit having the same Locking state detector and DLL circuit having the same

2008-10-31

2010-11-23

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S149000

Reexamination Certificate

active

07839190

ABSTRACT:
A locking state detector includes a phase comparing unit configured to compare a reference clock signal and a feedback clock signal to generate a first phase difference distinction signal to distinguish a first phase difference range, and a second phase difference distinction signal to distinguish a second phase difference range wider than the first phase difference range, and a locking state setting unit configured to generate a locking state signal in response to the first phase difference distinction signal and the second phase difference distinction signal.

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patent: 10200570091038 (2005-09-01), None

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