Phase interpolator to interpolate between a plurality of...

Details Phase interpolator to interpolate between a plurality of... Phase interpolator to interpolate between a plurality of...

2005-09-13

2005-09-13

Nguyen, Linh My (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Phase shift by less than period of input

C327S246000

Reexamination Certificate

active

06943606

ABSTRACT:
A phase interpolator interpolates between a plurality of clock phases using a plurality of switching legs coupled to a common output. Each switching leg includes a pair of differential switching transistors each having a gate and two additional terminals, one of which is coupled to said common output. The gates are coupled to respective ones of the plurality of clock phases and their complements. Tails couple the other terminals of said switching transistors to ground. Each tail made up of a plurality of transistors. A load coupling the common output to a voltage.

REFERENCES:
patent: 6002279 (1999-12-01), Evans et al.
patent: 6133773 (2000-10-01), Garlepp et al.
patent: 6359486 (2002-03-01), Chen
Dally and Poulton:Digital Systems Engineering, 1998, p. 604-605.

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