Clock and data recovery circuit
US10615804B2 · kind B2 · utility
0Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2018 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Sep 24, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/091
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A clock and data recovery circuit includes a first phase detector, a first charge pump, a first voltage-controlled oscillator (VCO), and an auxiliary module. The auxiliary module includes: an auxiliary clock generator, generating an auxiliary clock signal; a second phase detector, coupled to the auxiliary clock generator, comparing a phase of the auxiliary clock signal with that of a first clock signal outputted by the first VCO; and a multiplexing selecting unit, outputting a multiplexing output signal to the first charge pump according to a selection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.