Synthesizer having an injection synchronized divider

Details Synthesizer having an injection synchronized divider Synthesizer having an injection synchronized divider

1980-06-02

1982-08-31

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

With reference oscillator or source

331 18, 331 51, H03L 708

Patent

active

043474845

ABSTRACT:
A phase-locked loop circuit for use in locking onto a sub-harmonic of the frequency of a reference source. An oscillator operating at the sub-harmonic frequency is injection-synchronized to the primary voltage controlled oscillator of the phase-locked loop, thereby causing it to function as a divider. The injection-synchronized oscillator can be controlled by a loop control signal generated by the loop's phase detector and loop filter.

REFERENCES:
patent: 3813610 (1974-05-01), Kimura

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