Precision on-chip transmission line termination
US6605958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2001 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Oct 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10689
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.