On-chip source termination in communication systems

Details On-chip source termination in communication systems On-chip source termination in communication systems

2007-11-27

2007-11-27

Barnie, Rexford (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

C326S083000

Reexamination Certificate

active

11115117

ABSTRACT:
A communication system includes an integrated circuit (IC) die having an on-chip source termination. The on-chip source termination can be a non-precision resistor, such as an unsilicided poly resistor, or any other suitable termination. As compared to an off-chip source termination, the on-chip source termination can reduce voltage peaking and/or voltage overshoot in the IC die and/or at a load that is connected to the IC die. The IC die can further include a line driver to provide a source current. A bias generator can be included to provide a bias current to the line driver. The bias generator can include a first current source coupled to an off-chip resistor and a second current source coupled to an on-chip resistor. An output voltage of the IC die can be adjusted by manipulating a trim control of the off-chip resistor and/or a trim control of the on-chip resistor.

REFERENCES:
patent: 5530377 (1996-06-01), Walls
patent: 5581197 (1996-12-01), Motley et al.
patent: 6125415 (2000-09-01), Liu
patent: 6259745 (2001-07-01), Chan
patent: 6490325 (2002-12-01), Fiedler et al.
patent: 6504397 (2003-01-01), Hart et al.
patent: 6566904 (2003-05-01), van Bavel et al.
patent: 7061273 (2006-06-01), Wang et al.
patent: 2003/0020518 (2003-01-01), Bavel et al.
patent: 2004/0080339 (2004-04-01), Kubo
patent: 2004/0201416 (2004-10-01), Wyers et al.
patent: 1 050 138 (2000-11-01), None
patent: 1 422 878 (2004-05-01), None
patent: 2 407 721 (2005-05-01), None
European Search Report cited in Application No. 06003637.-2215, on Sep. 28, 2006.

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