Wide band phase locked loop circuit using narrow band voltage co

Details Wide band phase locked loop circuit using narrow band voltage co Wide band phase locked loop circuit using narrow band voltage co

1997-12-23

1999-12-07

Wells, Kenneth B.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327159, 331DIG2, H03L 706

Patent

active

059990244

ABSTRACT:
A wide band phase locked loop using a narrow band voltage controlled oscillator is provided. The wide band phase locked loop circuit includes a frequency and phase detector for generating a signal corresponding to a difference in a frequency and a phase between an input signal and a reference signal and a loop filter for filtering the signal generated by the frequency and phase detector to a predetermined frequency band. The filtered signal from the loop filter is provided to a narrow band voltage controlled oscillator which generates a signal having a frequency varying according to a voltage of the filtered signal, and a level detector which generates dividing ratio control information by detecting a voltage level of the filtered signal. A variable frequency divider generates the reference signal by dividing the signal generated from the voltage controlled oscillator by a dividing ratio determined according to the dividing ratio control information.

REFERENCES:
patent: 4516083 (1985-05-01), Turney
patent: 5325075 (1994-06-01), Rapeli
patent: 5334952 (1994-08-01), Maddy et al.
patent: 5371480 (1994-12-01), Hedberg et al.

Affiliated with

Also associated with

Rating

Wide band phase locked loop circuit using narrow band voltage co does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wide band phase locked loop circuit using narrow band voltage co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wide band phase locked loop circuit using narrow band voltage co will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-828449