Programmable wide-range frequency synthesizer
US6114915A · kind A · utility
62Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1999 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Mar 23, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2005/00045
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Method and circuitry for a frequency synthesizer having wide operating frequency range. The frequency synthesizer uses multiple programmable loadable counters in a phase-locked loop arrangement to generate any combination of clock frequencies based on user programmed values. In a specific embodiment of the invention, the phase-locked loop includes a voltage-controlled oscillator with a built-in programmable phase shift. The present invention further provides a preferred embodiment for a high speed loadable down counter for use in the frequency synthesizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.