Phase frequency detectors generating minimum pulse widths

Details Phase frequency detectors generating minimum pulse widths Phase frequency detectors generating minimum pulse widths

2007-04-04

2009-12-15

Barnie, Rexford N (Department: 2819)

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

Reexamination Certificate

active

07633349

ABSTRACT:
A phase frequency detector compares a reference clock signal to a feedback clock signal to generate pulses in one or more output signals. The one or more output signals have a minimum pulse width. The phase frequency detector has a temperature sensing circuit. The phase frequency detector adjusts the minimum pulse width of the one or more output signals using the temperature sensing circuit to compensate for variations in the temperature of the phase frequency detector.

REFERENCES:
patent: 5990671 (1999-11-01), Nagata
patent: 6269012 (2001-07-01), Kusakabe et al.
patent: 6946887 (2005-09-01), Ho

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