Simplified and effective offset calibration circuit for RxLOS in serdes
US9444660B2 · kind B2 · utility
0Cited by
2References
19Claims
0Family size
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Key dates
| Filing date | May 16, 2014 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | May 16, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0276
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for offset cancellation in a receiver loss of signal (RxLOS) circuit of a serializer/deserializer (SerDes) receiver device includes receiving a differential input signal via the first stage of a peak detector cell of the RxLOS circuit and shorting the differential output of the first stage via a control switch of the second stage of the RxLOS circuit. The control switch may further transition the RxLOS circuit from normal operating mode to an offset cancellation mode wherein the control switch may manually or automatically short the differential output of the first stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.