Apparatus and method for a low jitter predriver for differential output drivers
US7154301B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 2004 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Mar 26, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0272
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for a low jitter predriver for differential output drivers. In one embodiment, the predriver comprises a pull-up circuit having at least one pull-up device of a first device type and a pull-down circuit having at least one pull-down device of the first device type In one embodiment, the pull-up circuit and the pull-down circuit to charge an output node and a complement output node in opposite directions to generate a differential predriver signal pair. Accordingly, using the pull-up and pull-down circuits, the predriver circuit generates differential output signals. In one embodiment, the pull-up device and the pull-down device comprise N-channel metal oxide semiconductor (NMOS) devices. Other embodiments are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.