Fractional-N synthesizer and method of programming the...

Details Fractional-N synthesizer and method of programming the... Fractional-N synthesizer and method of programming the...

2004-04-16

2008-12-09

Wang, Ted (Department: 2611)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S373000, C375S327000, C327S156000, C331S00100A, C331S025000

Reexamination Certificate

active

07463710

ABSTRACT:
A fractional-N synthesizer with programmable output phase including a phase locked loop having an output signal whose frequency is a fractional multiple of an input reference signal, the phase locked loop including a frequency divider. A synchronization circuit responsive to the input reference signal for generating synchronization pulses at integer multiples of M periods of the input reference signal. An interpolator is responsive to F and M, where F is the fractional value and M is the modulus, to provide to the frequency divider an output which is a fractional value equal to, on average, the input fraction. A phase adjustment circuit is responsive to the synchronization circuit for varying the phase of the output signal with respect to the input reference signal.

REFERENCES:
patent: 6353649 (2002-03-01), Bockleman et al.
patent: 6556086 (2003-04-01), Keaveney et al.
patent: 6600378 (2003-07-01), Patana
patent: 6614319 (2003-09-01), Saeki et al.
patent: 6621317 (2003-09-01), Saeki
patent: 6642800 (2003-11-01), Drapkin et al.
patent: 2002/0191727 (2002-12-01), Staszewski et al.

Affiliated with

Also associated with

Rating

Fractional-N synthesizer and method of programming the... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fractional-N synthesizer and method of programming the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fractional-N synthesizer and method of programming the... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4031735