Phase frequency detector with a novel D flip flop
US7417470B2 · kind B2 · utility
0Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Aug 26, 2008 |
| Priority date | — |
| Expiry date | Nov 18, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/1976
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods, systems and components for use with or as a phase frequency detector. The phase frequency detector stretches its output pulse, allowing the detector to operate in a more linear region. As part of the invention, a new configuration for a D type flip flop is also disclosed. In one embodiment, the D type flip flop triggers at both the rising and the falling edges of the reference input, allowing a lower frequency input to be used while having the advantages of a higher frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.