05651035 is referenced by 70 patents and cites 4 patents.

An accumulator stores a signal representation of an accumulated angle that is incremented by an input angle in response to a reference clock pulse. The most significant bit (MSB) of the accumulated angle signals drives the input of a phase locked loop of the type that includes a loop filter, a frequency divider and a voltage controlled oscillator (VCO). A charge is injected into the loop filter during an overshoot interval during which the output of the frequency divider differs from the MSB. A compensating charge is injected into the loop filter to compensate for the charge injected during the overshoot interval. Jitter free spectrum spread clock pulses are provided by the VCO in response to the MSB.

Title
Apparatus for reducing jitter of a spectrum spread clock signal and method therefor
Application Number
8/430575
Publication Number
5651035
Application Date
April 28, 1995
Publication Date
July 22, 1997
Inventor
Earl William McCune Jr
Santa Clara
CA, US
Orhan Tozun
Monte Sereno
CA, US
Agent
Jeffrey D Harry M Weiss & Associates P C Moy
Harry M Weiss
Assignee
International Microcircuits
CA, US
IPC
H04L 25/40
H04L 25/36
H04L 7/00
View Original Source