Fast lock time phase locked loop

Details Fast lock time phase locked loop Fast lock time phase locked loop

1990-11-29

1992-01-14

Pascal, Robert J.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural a.f.s. for a single oscillator

331 17, 331 25, H03L 700

Patent

active

050814273

ABSTRACT:
A fast locking phase locked loop includes a first integrator that provides a signal representing a function of the mathematical or ideal integral of the phase difference between an input signal and a feedback signal. A voltage controlled oscillator is coupled to the first integrator and provides a signal to a phase shifter that provides the phase shifted signal that represents a function of the phase of the signal from the VCO, and a function of the integral of the phase difference between the integrated signals.

REFERENCES:
patent: 3701039 (1972-10-01), Lang et al.
patent: 4009450 (1977-02-01), Holcomb et al.
patent: 4093926 (1978-06-01), Lamarche
patent: 4684901 (1987-08-01), Kawano

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