Crystal oscillator with low-power mode
US9407200B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2011 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Jul 8, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0046
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Circuits having corresponding methods and computer-readable media comprise: an amplifier; a crystal port configured to be electrically coupled to a crystal, wherein a first terminal of the crystal port is electrically coupled to an input of the amplifier, and wherein a second terminal of the crystal port is electrically coupled to an output of the amplifier; a first capacitor, wherein a first terminal of the first capacitor is electrically coupled to ground; a second capacitor, wherein a first terminal of the second capacitor is electrically coupled to ground; a first switch configured to selectively electrically couple the input of the amplifier to a second terminal of the first capacitor; and a second switch configured to selectively electrically couple the output of the amplifier to a second terminal of the second capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.