The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2003
Filed:
Oct. 09, 2001
Dave Bergman, Colleyville, TX (US);
Yaqi Hu, Plano, TX (US);
Jim McDonald, Plano, TX (US);
Kok-Lean Tan, Kota Kinabalu, MY;
Vitesse Semiconductor Corporation, Camarillo, CA (US);
Abstract
Methods and apparatus for providing precision on-chip termination of transmission lines are provided which enable the termination of transmission lines using on-chip resistors configured into networks, which have resistances related to the resistance of an external reference resistor. The external reference resistor is used to configure an on-chip reference resistor network so that it has a resistance related to the resistance of the external reference resistor. Termination resistor networks are then configured so that their resistances bear a predetermined relationship to the resistance of the on-chip reference resistor network. In one embodiment the resistance of each of the termination resistor networks is substantially the same as the characteristic impedances of each of the transmission lines.