Circuits and methods for reducing static phase offset using...

Details Circuits and methods for reducing static phase offset using... Circuits and methods for reducing static phase offset using...

2007-10-02

2007-10-02

Lee, Benny (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural a.f.s. for a single oscillator

C331S017000, C331S044000, C327S157000

Reexamination Certificate

active

11200472

ABSTRACT:
Embodiments of the present invention reduce static phase offset in timing loops. In one embodiment, the present invention includes a timing loop comprising first and second phase detectors, wherein during a first time period, the first phase detector is coupled in a closed timing loop and the second phase detector is decoupled from the closed timing loop and calibrated, and during a second time period, the second phase detector is coupled in a closed timing loop and the first phase detector is decoupled from the closed timing loop and calibrated.

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“ICL7600/ICL7601 High Reliability Commutating Auto-Zero(CAZ) Operational Amplifier”, Intersil datasheet.
Peter Bradshaw, “The ICL7650S: A New Era in Glitch-Free Chopper Stabilized Amplifiers”, Intersil datasheet, Jul. 2001, Application Note 053.

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