Phase locked loop with scaled damping capacitor

Details Phase locked loop with scaled damping capacitor Phase locked loop with scaled damping capacitor

2007-09-11

2007-09-11

Kinkead, Arnold (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

C331S017000, C331S175000, C327S156000

Reexamination Certificate

active

11195267

ABSTRACT:
In order to reduce the area of a charge pump PLL, one may separate proportional component and integral component of the loop filter voltage, and add additional circuitry so as to make the integral component appear as though it is affected by a much larger value of capacitance than is actually used. In an aspect, a current mirror may be used to subtract a portion of the integral component of the loop filter voltage from the total loop filter voltage. The difference signal is then used to drive an oscillator in the charge pump PLL. In another aspect, a third integrator or auto-calibration loop is used to set a center frequency of the oscillator.

REFERENCES:
patent: 5495512 (1996-02-01), Kovacs et al.
patent: 7026879 (2006-04-01), Booth

Affiliated with

Also associated with

Rating

Phase locked loop with scaled damping capacitor 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 with scaled damping capacitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase locked loop with scaled damping capacitor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3752783