DLL circuit and control method therefor

Details DLL circuit and control method therefor DLL circuit and control method therefor

2009-10-22

2011-11-22

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S149000

Reexamination Certificate

active

08063679

ABSTRACT:
Jitter is stably reduced. An input clock signal (CLKi) is outputted as an output clock signal (CLKo) via a voltage controlled delay circuit (12), and in addition a delay amount in the voltage controlled delay circuit (12) is controlled based on a result of a phase comparison of the input clock signal (CLKi) and the output clock signal (CLKo). A phase comparison result judging circuit (15) adds up results of phase comparison of the input clock signal (CLKi) and the output clock signal (CLKo) over a prescribed time, and controls the delay amount based on a distribution of addition results.

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patent: 2001-290555 (2001-10-01), None

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