Semiconductor integrated circuit having a clock generation...

Details Semiconductor integrated circuit having a clock generation... Semiconductor integrated circuit having a clock generation...

2007-04-17

2007-04-17

Chang, Joseph (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

With reference oscillator or source

C331S025000, C327S012000

Reexamination Certificate

active

10449089

ABSTRACT:
During a period of preparation for actual operation, a reference clock is supplied to both a comparison clock input portion and a feedback clock input portion of a phase comparator while a feedback loop of a PLL (phase-locked loop) is interrupted, and a delay of a reset signal within the phase comparator is adjusted so as to reduce a detection dead zone of phase differences in the phase comparator.

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