Adjustment of PLL bandwidth for jitter control using...

Details Adjustment of PLL bandwidth for jitter control using... Adjustment of PLL bandwidth for jitter control using...

2008-06-24

2008-06-24

Chang, Joseph (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Particular error voltage control

C331S016000, C331S044000

Reexamination Certificate

active

07391271

ABSTRACT:
Jitter method and control circuit for a circuit block in a transceiver system having a phase lock loop circuit which includes an oscillator, a charge pump connected to the oscillator to add or subtract charge to or from said oscillator, and a low pass filter connected to said charge pump are provided. Circuitry is connected to the output of the oscillator and the input of the charge pump to control the amount of charge added to or subtracted from the charge pump to control the bandwidth output by the oscillator and thereby reduce jitter in the phase lock circuit.

REFERENCES:
patent: 6608826 (2003-08-01), Mesecher et al.
patent: 6724265 (2004-04-01), Humphreys
patent: 6825733 (2004-11-01), Qu et al.
patent: 2003/0165209 (2003-09-01), Chen et al.
patent: 2004/0202271 (2004-10-01), Fahim
patent: 0571853 (1993-12-01), None
patent: WO9517043 (1995-06-01), None

Affiliated with

Also associated with

Rating

Adjustment of PLL bandwidth for jitter control using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustment of PLL bandwidth for jitter control using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustment of PLL bandwidth for jitter control using... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2811131