Frequency and temperature compensation synthesis for a MEMS resonator
US7755441B1 · kind B1 · utility
12Cited by
11References
12Claims
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Key dates
| Filing date | Sep 3, 2008 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Jan 24, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/1976
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A signal generation technique is based on a reference frequency provided by a MEMS resonator. The signal generation technique compensates for temperature- and fabrication process-induced frequency variations collectively. In some embodiments, a device implementing the disclosed signal generation technique includes a fractional-N synthesizer, a temperature sensor, calibration data, and a sigma-delta modulator to adjust the reference frequency of the MEMS resonator to a desired frequency value while compensating for the temperature variation of the MEMS resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.