Clock data recovery circuit including charge pump having reduced glitch current
US11757355B1 · kind B1 · utility
0Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2021 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Dec 1, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/033
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to electrical circuits. According to an embodiment, the present invention provides a charge pump circuit with a bias section and a switch section. The switch section includes a first switch coupled to an early signal and a second switch coupled to a late signal. The charge pump additionally includes a low-pass filter. The switch section includes a first resistor and a second resistor. The first resistor is directly coupled to the first switch and the low-pass filter. The second resistor is directly coupled to the second switch and the first resistor. There are other embodiments as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.