Lock detection for a phase lock loop

Details Lock detection for a phase lock loop Lock detection for a phase lock loop

1991-05-03

1993-10-26

Pascal, Robert J.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Afc with logic elements

331DIG2, H03L 700

Patent

active

052569896

ABSTRACT:
A phase lock loop monitors a first digital signal and generates a second digital signal operating substantially at frequency and in-phase with the first digital signal. The first and second digital signal are applied to a lock detection circuit for generating a first digital output signal having a first logic state from a mutually exclusive combination of the first and second digital signals. The first logic state of the first digital output signal is compared with a time slot window formed by a control signal for generating a true lock detection signal when the first logic state of the first digital output signal occurs within the time slot window and a false lock detection signal when the first logic state of the first digital output signal occurs outside the time slot window.

REFERENCES:
patent: 4787097 (1988-11-01), Rizzo

Affiliated with

Also associated with

Rating

Lock detection for a phase lock loop does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lock detection for a phase lock loop, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lock detection for a phase lock loop will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-961917