Termination sense-and-match differential driver

Details Termination sense-and-match differential driver Termination sense-and-match differential driver

2006-07-04

2006-07-04

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C326S030000

Reexamination Certificate

active

07071739

ABSTRACT:
A differential driver circuit is configured to automatically adjust its source resistance to be substantially similar to a termination resistance. The differential driver circuit includes a variable resistance circuit on each leg of the differential driver circuit. A replica of one leg of the differential driver circuit is configured for adjusting the variable resistance circuits so that the differential driver circuit's source resistance appears to a load as substantially similar to the termination resistance.

REFERENCES:
patent: 3602832 (1971-08-01), Raymond
patent: 6356141 (2002-03-01), Yamauchi
patent: 6369621 (2002-04-01), Tinsley et al.
patent: 6380797 (2002-04-01), Macaluso
patent: 6570931 (2003-05-01), Song
patent: 6600346 (2003-07-01), Macaluso
patent: 6603348 (2003-08-01), Preuss et al.
patent: 6756812 (2004-06-01), Nagano et al.
patent: 6853253 (2005-02-01), Desortiaux

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