Phase-locked loop circuit permitting reduction of circuit size

Details Phase-locked loop circuit permitting reduction of circuit size Phase-locked loop circuit permitting reduction of circuit size

1997-03-07

2000-05-16

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327158, 327146, 327147, 327149, 327150, 327151, 327153, 327155, 327156, 327241, 327242, 327243, H03L 706

Patent

active

060642440

ABSTRACT:
A phase-locked loop circuit is constituted in such a manner that a delayed signal created by causing an input signal to loop through a delay stage a plurality of times is compared in terms of phase with the input signal, and an amount of delay in the delay stage is controlled in accordance with the comparison result of the delayed signal and the input signal. Therefore, the circuit size can be reduced with a reduced number of delay units constituting the delay stage.

REFERENCES:
patent: 5173617 (1992-12-01), Alsup et al.
patent: 5216302 (1993-06-01), Tanizawa
patent: 5260608 (1993-11-01), Marbot
patent: 5471165 (1995-11-01), Liedberg
patent: 5629651 (1997-05-01), Mizuno

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