Circuits and methods for implementing sub-integer-N frequency dividers using phase rotators
US7486145B2 · kind B2 · utility
37Cited by
15References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2007 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Jul 26, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/1974
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Circuits and methods are provided for implementing programmable sub-integer N frequency dividers for use in, e.g., frequency synthesizer applications, providing glitch free outputs signals with minimal fractional spurs. Phase-rotating sub-integer N frequency dividers are programmable to provide multi-modulus division with a wide range of arbitrary sub-integer division ratios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.