Apparatus and method for limiting the overshoot and undershoot when turning on the spread spectrum of a reference signal
US7330078B1 · kind B1 · utility
16Cited by
18References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2005 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Apr 3, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/18
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is a circuit, comprising an input spread spectrum enable signal, a crystal oscillator, a first, second and third sampling flip-flop clocked by the crystal oscillator, configured to sample the input spread spectrum enable signal, and a plurality of control output signals derived from or provided directly from the sampling flip-flops. A method of operating the circuit is further described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.