Phase locked loop circuit and clock reproduction circuit

Details Phase locked loop circuit and clock reproduction circuit Phase locked loop circuit and clock reproduction circuit

2007-01-02

2007-01-02

Phu, Phuong (Department: 2611)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S373000, C375S375000, C327S156000, C327S147000

Reexamination Certificate

active

10300745

ABSTRACT:
A phase locked loop circuit and a clock reproduction circuit can operate stably with satisfying both of wide lock range and good jitter characteristics. The phase locked loop circuit for generating a clock signal in synchronized in phase with an input signal, has a phase comparator having an analog characteristics as a phase difference detection output characteristics and detecting a phase difference between the input signal and the clock signal, a first control loop controlled oscillation depending upon the phase difference detection output and a second control loop controlled oscillation depending upon a signal derived from the phase difference detection output with enhancing frequency components near a direct current component and performs low speed control in comparison with the first control loop.

REFERENCES:
patent: 4580107 (1986-04-01), Caldwell et al.
patent: 5012494 (1991-04-01), Lai et al.
patent: 5142246 (1992-08-01), Petersson
patent: 5836000 (1998-11-01), Choi
patent: 6147530 (2000-11-01), Nogawa
patent: 6271731 (2001-08-01), Koszarsky
patent: 6353647 (2002-03-01), Wilhelmsson et al.
patent: 6643346 (2003-11-01), Pedrotti et al.

Affiliated with

Also associated with

Rating

Phase locked loop circuit and clock reproduction circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase locked loop circuit and clock reproduction circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase locked loop circuit and clock reproduction circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3790271