Digital charge pump PLL architecture

Details Digital charge pump PLL architecture Digital charge pump PLL architecture

2011-08-23

2011-08-23

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S147000

Reexamination Certificate

active

08004326

ABSTRACT:
A digital phase lock loop (PLL) circuit having a digital charge pump circuit for providing digital signals corresponding to a difference in phase between an internal clock corresponding to a voltage controlled oscillator, and a reference clock. These digital signals are processed by a digital processing circuit for providing digital control signals. Some of the digital control signals are converted into an analog control signal to provide fine control of the voltage controlled oscillator, while the remaining digital control signals provide coarse control of the voltage controlled oscillator.

REFERENCES:
patent: 5739725 (1998-04-01), Ferraiolo et al.
patent: 6313707 (2001-11-01), Fischer et al.
patent: 6538475 (2003-03-01), Johansen et al.
patent: 7256630 (2007-08-01), Takase
patent: 7268629 (2007-09-01), Takase
patent: 7382169 (2008-06-01), Nikolov et al.
patent: 7403073 (2008-07-01), Kossel et al.
patent: 7605664 (2009-10-01), Sandner et al.
patent: 7633322 (2009-12-01), Zhuang et al.
patent: 7733985 (2010-06-01), Chang
patent: 2005/0195002 (2005-09-01), Puccio et al.
patent: 2006/0164174 (2006-07-01), Molina et al.
patent: 2006/0267642 (2006-11-01), Takase
patent: 2007/0075785 (2007-04-01), Kossel et al.
patent: 2007/0200638 (2007-08-01), Sandner et al.
patent: 2010/0141308 (2010-06-01), Villarino-Villa et al.
patent: 2010/0241918 (2010-09-01), Nedovic
Abstract of JP5218856, published Aug. 27, 1993, Hiroyuki et al.
International Application Serial No. PCT/CA2007/002247, International Search Report dated Apr. 10, 2008.

Affiliated with

Also associated with

Rating

Digital charge pump PLL architecture 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 charge pump PLL architecture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital charge pump PLL architecture will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2660441