Oscillation circuit, oscillator, electronic apparatus, moving object, and frequency adjustment method of oscillator
US9325328B2 · kind B2 · utility
1Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2014 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Dec 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2201/0208
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An oscillation circuit includes a voltage controlled oscillation circuit that includes a variable capacitance circuit provided with a variable capacitance element whose capacitance value is controlled on the basis of a control voltage and oscillates a vibrator so as to generate an oscillation signal, and a fractional N-PLL circuit that receives the oscillation signal generated by the voltage controlled oscillation circuit and includes a voltage controlled oscillator which controls an oscillation frequency on the basis of control input data (an integral division ratio and a fractional division ratio).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.