Interpolator linearity testing system

Details Interpolator linearity testing system Interpolator linearity testing system

2006-03-07

2006-03-07

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S147000, C327S002000

Reexamination Certificate

active

07009431

ABSTRACT:
According to some embodiments, an interpolated clock signal having a first frequency is received, and the interpolated clock signal is periodically sampled based on a reference clock signal to generate periodically-sampled values, the reference clock signal having substantially the first frequency. A phase of the interpolated clock signal may be set to a phase degree at which the periodically-sampled values resolve to more than one value, and the phase of the interpolated clock signal may be incrementally changed until the periodically-sampled values resolve to one value. A non-linearity of the interpolated clock signal may be determined based on the number of incremental changes.

REFERENCES:
patent: 6114914 (2000-09-01), Mar
patent: 6438721 (2002-08-01), Wente
patent: 6525615 (2003-02-01), Masenas et al.
patent: 6650157 (2003-11-01), Amick et al.
patent: 6815986 (2004-11-01), Roy et al.

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