Differential charge pump and phase locked loop having the same

Details Differential charge pump and phase locked loop having the same Differential charge pump and phase locked loop having the same

2006-05-09

2006-05-09

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S148000

Reexamination Certificate

active

07042261

ABSTRACT:
A switching control signal generating circuit for reducing glitches from occurring in a charge pump during switching. Additionally, a phase locked loop including the charge pump is provided. The switching control signal generating circuit obtains a time difference in output signals based upon the signals input to the generating circuit. Combining the switching control signal generating circuit with a charge pump reduces glitches during switching. Similarly the jitter in the output signal of a phase locked loop, using the charge pump, can be reduced.

REFERENCES:
patent: 5736880 (1998-04-01), Bruccoleri et al.
patent: 5740213 (1998-04-01), Dreyer
patent: 6275097 (2001-08-01), Liang et al.
patent: 6385265 (2002-05-01), Duffy et al.
patent: 6686794 (2004-02-01), Abidin et al.
patent: 6771102 (2004-08-01), Abidin et al.
patent: 6825730 (2004-11-01), Sun
patent: 6847251 (2005-01-01), Kao

Affiliated with

Also associated with

Rating

Differential charge pump and phase locked loop having the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential charge pump and phase locked loop having the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential charge pump and phase locked loop having the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3625457