Slow transition time phase frequency detector and method

Details Slow transition time phase frequency detector and method Slow transition time phase frequency detector and method

1996-08-22

1998-09-08

Wells, Kenneth B.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327 48, 327 49, 327161, 327163, 331 1A, 331 25, H03L 706

Patent

active

058050027

ABSTRACT:
A phase frequency detection circuit and method in a phase lock loop circuit uses delay circuits to limit the period of expression of up and down signals which adjust the output frequency of a voltage controlled oscillator. The pulse frequency detection circuit includes cross-linked latches to drive logic gates which produce output signals for adjusting the output frequency of a voltage controlled oscillator and delay circuitry connected to the outputs of particular logic gates for selective nullification of up and down control signals to a voltage controlled oscillator.

REFERENCES:
patent: 4291274 (1981-09-01), Suzuki et al.
patent: 4322643 (1982-03-01), Preslar
patent: 4598217 (1986-07-01), Predina et al.
patent: 4771251 (1988-09-01), Allen et al.
patent: 4804929 (1989-02-01), Kato et al.
patent: 4816777 (1989-03-01), Benhamida
patent: 4901026 (1990-02-01), Phillips et al.
patent: 4945303 (1990-07-01), Hwang et al.
patent: 5081429 (1992-01-01), Atriss et al.
patent: 5173927 (1992-12-01), Strommer et al.
patent: 5175512 (1992-12-01), Self
patent: 5208546 (1993-05-01), Nagaraj
patent: 5220201 (1993-06-01), Kawasaki et al.
patent: 5355097 (1994-10-01), Scott et al.
patent: 5440277 (1995-08-01), Ewen et al.
patent: 5485126 (1996-01-01), Gersbach et al.
patent: 5502411 (1996-03-01), Matsuki et al.

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