Feedback-based linearization of voltage controlled oscillator
US8049568B2 · kind B2 · utility
14Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2009 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Dec 2, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L2207/05
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention enable a feedback-based VCO linearization technique. Embodiments include a frequency locked loop formed by feeding back a VCO's output into the VCO's input in negative phase by means of a frequency-to-voltage (F/V) converter. Embodiments enable constant VCO gain over a wide input tuning range and across PVT variations. Further, embodiments can be nested within a PLL, for example, with negligible area and power consumption overhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.