Apparatus and method for ensuring the correct start-up and locking of a delay locked loop
US6239634A · kind A · utility
28Cited by
14References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2000 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Jan 10, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L2207/14
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A delay locked loop (DLL) is described comprising: a delay unit configured to delay an input clock signal by a specified amount to produce a delayed clock signal, said specified amount controlled by a control voltage applied to said delay unit; and a switch configured to clamp said control voltage to a predetermined value when said DLL is reset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.