Offset correction for sense amplifier
US9485119B1 · kind B1 · utility
1Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2015 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Jul 13, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03878
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to data communication. More specifically, embodiments of the present invention provide an offset correction technique for a SERDES system. A CTLE module for receiving input data signal is set to an isolation mode, and one or more sense amplifiers perform data sampling asynchronously during the isolation mode. During the isolation mode, CLTE(s) that are not directly connected to the sense amplifiers are shut. Data sampled during the isolation mode are used to determine an offset value that is later used in normal operation of the SERDES system. There are other embodiments as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.