Shared path phase detector

Details Shared path phase detector Shared path phase detector

1998-03-18

2000-05-16

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By phase

327 7, 327 10, G01R 2900

Patent

active

060642351

ABSTRACT:
A shared path phase detector circuit for receiving a reference clock and an oscillator clock, the phase detector circuit providing an output signal for indicating a magnitude difference between a phase of the reference and oscillator clocks. The output signal is independently derived from the leading or lagging edge relationship of the reference and oscillator clocks. The output signal does not describe which signal leads, but only the width magnitude difference. The design provides a single path over which the output signal travels, without feedback, such that the circuit dependencies are greatly reduced.

REFERENCES:
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patent: 5105160 (1992-04-01), Summers
patent: 5150068 (1992-09-01), Kawashima et al.
patent: 5266851 (1993-11-01), Nukui
patent: 5329559 (1994-07-01), Wong et al.
patent: 5491439 (1996-02-01), Kelkar et al.
patent: 5530383 (1996-06-01), May
patent: 5546052 (1996-08-01), Austin et al.

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