Current reduction of a synthesizer

Details Current reduction of a synthesizer Current reduction of a synthesizer

1989-05-01

1990-06-19

Mis, David

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

331 1A, 331 8, 331 17, 331 25, H03L 708, H03L 718

Patent

active

049357077

ABSTRACT:
A synthesizer is provided to include a phase detector, a loop filter, a current source and two current sinks. The current source and the second current sink selectively supplies current to and from the loop filter, respectively. The first current sink selectively sinks current from the current source. Responsive to signals from the phase detector, a controller actuates the current source on prior to switching at least one of the first and second current sinks.

REFERENCES:
patent: 4381552 (1983-04-01), Nocilini et al.
patent: 4470025 (1984-09-01), Baker
patent: 4649353 (1987-03-01), Sonnenberg
patent: 4713631 (1987-12-01), Enderby et al.
patent: 4764737 (1988-08-01), Kaatz

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