Dual steered frequency synthesizer
US6990164B2 · kind B2 · utility
5Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2001 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Apr 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L2207/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A frequency synthesizer 100 comprising a charge pump 102, a loop filter 104, a loop divider 106, and an active and dual port VCO 110. An integrator 108 low pass filters a steering voltage to provide a low frequency path while the steering voltage provides a high frequency path. Both steering paths are connected to dual port VCO 110. The dual port VCO 110 is a single frequency generator which is controlled by two control signals. The dual port VCO 110, effectively provides the equivalent of a low frequency path 114 and a high frequency noise compensation path 112, both paths effectively merging 116 by superposition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.