Circuit for post-silicon control of delay locked loop charge pump current
US6664831B2 · kind B2 · utility
7Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2002 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Apr 24, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/0896
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A charge pump design that facilitates post-fabrication control of delay locked loop charge pump current is provided. The charge pump includes an adjustment device responsive to user controlled signals that are varied to achieve a desired amount of charge pump current. Such control of the charge pump current in a delay locked loop allows a designer to achieve a desired DLL performance characteristic after the DLL has been fabricated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.