Digital phase comparator with improved sensitivity for small...

Details Digital phase comparator with improved sensitivity for small... Digital phase comparator with improved sensitivity for small...

G - Physics

05

B

354/82

G05B 1/03 (2006.01) H03D 13/00 (2006.01) H03L 7/08 (2006.01) H03L 7/089 (2006.01) H03L 7/183 (2006.01)

Patent

CA 1197321

Abstract of the Disclosure A digital phase comparator for essentially eliminating the dead zone in the phase correction means of a phase locked loop. The digital phase comparator is arranged to provide respective up and down output pulses to operate respective charge pumps. The up and down output pulses at all times are greater than a predetermined time duration no matter how small the phase difference between comparator input signals. A delay means is provided in the phase comparator logic, which delay means substantially determines such predetermined time duration. The minimum pulse duration of the up and down signals is selected to be at least of a duration sufficient to operate its respective charge pump, thereby overcoming the finite turn on time of the respective charge pump, no matter how small the phase error.

375863

Affiliated with

Also associated with

Rating

Digital phase comparator with improved sensitivity for small... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital phase comparator with improved sensitivity for small..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital phase comparator with improved sensitivity for small... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1259219