Method of programming a frequency synthesizer

Details Method of programming a frequency synthesizer Method of programming a frequency synthesizer

1994-08-30

1996-10-29

Chin, Wellington

Oscillators

Automatic frequency stabilization using a phase or frequency...

Particular frequency control means

331 18, 327106, 455260, H03L 700, H04B 106

Patent

active

055700667

ABSTRACT:
In order to program the output frequency of a synthesizer such as that of a two-way radio, first the reference oscillator is warped or tuned substantially to one limit of its tuning range. The "N" divisor of the synthesizer dividor is then selected to produce a loop output close to the desired loop output frequency. The reference oscillator is then tuned to provide the desired loop output frequency.

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patent: 4940950 (1990-07-01), Heffrick
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patent: 5152005 (1992-09-01), Bickley
patent: 5301366 (1994-04-01), Groshong et al.
patent: 5319681 (1994-06-01), Meyer
patent: 5420545 (1995-05-01), Davis et al.

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