Method and apparatus for slaving the frequency and phase of an o

Details Method and apparatus for slaving the frequency and phase of an o Method and apparatus for slaving the frequency and phase of an o

1993-06-11

1994-12-13

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

With intermittent comparison controls

331 17, 331 25, H03L 7085

Patent

active

053732588

ABSTRACT:
In the slaving process, a reference signal is sampled by a clock signal of an oscillator and then digitized. The value representative of a phase error is then deduced from the sampled and digitized signal. A correction value is then deduced from this phase error to correct a digital value representing the oscillator control voltage. The device of the invention allows this process to be implemented. The invention also relates to a voltage-controlled crystal oscillator incorporating such a device.

REFERENCES:
patent: 4744096 (1988-05-01), Roux
patent: 5216554 (1993-06-01), Schneider

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