Process, voltage, temperature independent switched delay...

Details Process, voltage, temperature independent switched delay... Process, voltage, temperature independent switched delay...

2008-03-25

2008-03-25

Burd, Kevin (Department: 2611)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C327S147000

Reexamination Certificate

active

10702502

ABSTRACT:
A delay compensation circuit for a delay locked loop which includes a main delay line having a fine delay line comprising fine delay elements and a coarse delay line comprising coarse delay elements, the main delay line being controlled by a controller, the delay compensation circuit comprising: an adjustable fine delay for modeling a coarse delay element, a counter for controlling the adjustable fine delay to a value which is substantially the same as that of a coarse delay element, a circuit for applying a representation of the system clock to the delay compensation circuit, and a circuit for applying the fine delay count from the counter to the controller for adjusting the fine delay line of the main delay line to a value which is substantially the same as that of a coarse delay element of the main delay line.

REFERENCES:
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patent: 6683928 (2004-01-01), Bhullar et al.
patent: 0704975 (1996-04-01), None

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