Fine tuning control for a digitally controlled oscillator
US9356555B2 · kind B2 · utility
1Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2014 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Nov 24, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J2200/10
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods, apparatuses, and systems for providing a variable capacitance using an array of capacitor cells are discussed. In the fine tuning bank of an inductor/capacitor (LC)-tank of a digitally controlled oscillator (DCO), control is implemented by selecting a boundary cell from the array of capacitor cells and having every cell before the boundary cell in a circuit path be grounded and having the boundary cell and every cell after the boundary cell in the circuit path be connected to a voltage source. The circuit path may be the one formed by using thermometer coding in the fine tuning bank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.