Fast locking CDR for burst mode
US9209960B1 · kind B1 · utility
17Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2014 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Nov 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0337
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method relates generally to a receiver. In such a method, a check of a clock and data recovery block of the receiver for a metastable state is performed. A phase input to a phase interpolator of the receiver is changed to cause the clock and data recovery block of the receiver to exit the metastable state within a time limit. To check for the metastable state, a phase difference in received data is determined, and the phase difference is determined to be less than a threshold for the clock and data recovery block being in the metastable state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.