Frequency synthesizer incorporating vernier phase adjuster
US5256980A · kind A · utility
16Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1991 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Jul 9, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/1976
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A frequency synthesizer for producing an output whose phase and/or frequency can be finely adjusted under digital control. The synthesizer utilizes a phase lock loop including a phase detector responsive to a prescale divide-by-N frequency divider and a feedback divide-by-M frequency divider to product an output signal F.sub.OUT. The phase of F.sub.OUT can be shifted by a small increment by slightly adjusting the values of the divisors M and N.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.