Wide range phase detector utilizing a plurality of stacked detec

Details Wide range phase detector utilizing a plurality of stacked detec Wide range phase detector utilizing a plurality of stacked detec

1982-12-13

1985-02-19

LaRoche, Eugene R.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural a.f.s. for a single oscillator

331 25, 328134, 328155, 307516, H03L 706

Patent

active

045008523

ABSTRACT:
A phase detector for a phase lock loop can detect more than a 2.pi. radian phase difference. The phase detector is modulized so that modules may be stacked to extend the phase detection range by 2N.pi. radians, where N equals the number of modules that are stacked together. The modules are combined to obtain an output signal which can be applied to a filter for controlling the voltage of the voltage-controlled oscillator.

REFERENCES:
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patent: 3176208 (1965-03-01), Gifft
patent: 3431509 (1969-03-01), Andrea
patent: 3693112 (1972-09-01), Briggs
patent: 3714463 (1973-01-01), Laune
patent: 3755746 (1973-08-01), Hogue et al.
patent: 3866133 (1975-02-01), Debloois et al.
patent: 3989931 (1976-11-01), Phillips
patent: 4020422 (1977-04-01), Underhill

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