PLL circuit and phase control method of PLL circuit

Details PLL circuit and phase control method of PLL circuit PLL circuit and phase control method of PLL circuit

2005-06-27

2008-11-18

Ha, Dac V (Department: 2611)

Pulse or digital communications

Synchronizers

Synchronizing the sampling time of digital data

C375S371000, C375S375000, C375S376000, C370S516000, C327S147000, C327S156000

Reexamination Certificate

active

07453969

ABSTRACT:
A PLL circuit having a phase build-out function and a phase control method of the PLL circuit, in which a phase build-out detector monitors the input phase of a PLL device and detects a transient wander component and a cycle wander component at the same time. When only the transient wander component is automatically detected, a phase build-out actuator resets a phase detector, a digital amp-1and a digital filter to restructure an output phase as before an input phase change. As to the cycle wander component detected at the same time, no phase restructuring is carried out.

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patent: 5991350 (1999-11-01), Yamamoto
patent: 6337650 (2002-01-01), Mitsutani
patent: 6441601 (2002-08-01), Clark et al.
patent: 6934869 (2005-08-01), Bhoja et al.
patent: 7298916 (2007-11-01), Miyamoto
patent: 2000-244472 (2000-09-01), None

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