PLL Detection circuit

Details PLL Detection circuit PLL Detection circuit

1981-12-03

1984-02-21

Heyman, John S.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Particular error voltage control

331 25, 331DIG2, 307522, 307257, 307321, H03L 708

Patent

active

044333080

ABSTRACT:
A time constant resistor in a phase lock loop filter is short-circuited by a plurality of diodes which are activated in response to a detection output indicating that the filter output is within a desired locking range.

REFERENCES:
patent: 2932793 (1960-04-01), Smith et al.
patent: 3127564 (1964-03-01), Giger
patent: 3363194 (1968-01-01), Hileman
patent: 3771063 (1973-11-01), Barrett
patent: 3777181 (1973-12-01), Bancroft
patent: 3903473 (1975-09-01), Foster
patent: 3993958 (1976-11-01), Cutsogeorge
patent: 4007429 (1977-02-01), Cadalora et al.

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