Configurable voltage mode transmitted architecture with common-mode adjustment and novel pre-emphasis
US7501851B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2007 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | May 24, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/017581
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Configurable voltage mode transmitter architectures are based on combinations of drive cells and parallel termination cells connected in parallel across an external load to provide configurable output characteristics. Each drive cell and parallel termination can be individually enabled, various configurations of enabled cells providing the output characteristics configurability. In some embodiments, dedicated or configured pre-emphasis drive cells with individual enablement capability are added. In some embodiments, pull-down and pull-up cells with individual enablement capability are added to provide additional configurability options. When present, the pre-emphasis, pull-down and pull-up cells are connected in parallel across the external load to provide pre-emphasis features to the output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.