Fast VCO band selection by frequency to voltage converter
US7443259B2 · kind B2 · utility
0Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2006 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Aug 2, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L2207/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention comprises a phase locked loop that has an input adapted to receive a reference frequency. A phase detector is connected directly to the input, a charge pump is connected directly to the phase detector, and a loop filter is connected directly to the charge pump. Also, a voltage controlled oscillator is connected directly to the loop filter, and is adapted to perform frequency band selection. A band selection circuit is connected to the voltage controlled oscillator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.