PLL circuit

Details PLL circuit PLL circuit

2007-11-26

2010-12-07

Nguyen, Hai L (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S147000

Reexamination Certificate

active

07847607

ABSTRACT:
A phase locked loop (PLL) circuit including a phase comparator for comparing a phase of a reference signal with a phase of a feedback signal, an oscillator for outputting an output signal at a frequency in accordance with an output of the phase comparator, a feedback loop for returning the output signal of the oscillator and supplying the output signal as the feedback signal, and a delay circuit for delaying the phase of the output signal output from the oscillator to a load circuit, wherein the delay circuit is provided outside the feedback loop.

REFERENCES:
patent: 5629651 (1997-05-01), Mizuno
patent: 6243784 (2001-06-01), Anderson et al.
patent: 6690240 (2004-02-01), Maxim et al.
patent: 6794912 (2004-09-01), Hirata et al.
patent: 6998923 (2006-02-01), Melanson
patent: 7271788 (2007-09-01), Vu
patent: 2006/0132244 (2006-06-01), Hayashi
patent: 08-056157 (1996-02-01), None
patent: 2005-079835 (2005-03-01), None
patent: 2006-174243 (2006-06-01), None

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