Linearized phase comparator and phase-locked loop comprising suc

Details Linearized phase comparator and phase-locked loop comprising suc Linearized phase comparator and phase-locked loop comprising suc

1985-03-25

1986-08-19

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Particular error voltage control

331 25, 331 27, 307516, 328133, H03D 1300, H03L 710

Patent

active

046072365

ABSTRACT:
A phase comparator for receiving an input signal and a signal to be compared with this input signal, comprising an auxiliary stage. The auxiliary or dynamic reducing stage includes a circuit for reducing a predetermined value of the phase difference between the two inputs of the comparator and a circuit for recovering said value at the output of the comparator via a circuit delaying the information expressing this value. The phase comparator may be used in a phase locked loop.

REFERENCES:
patent: 3997848 (1976-12-01), Rippy
patent: 4253189 (1981-02-01), Lemoussu et al.
patent: 4378509 (1983-03-01), Hatchett et al.
patent: 4418318 (1983-11-01), Swagerty et al.

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