Multi-mode frequency synthesizer with temperature compensation
US7145402B2 · kind B2 · utility
26Cited by
3References
21Claims
0Family size
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Key dates
| Filing date | Jun 20, 2005 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Jun 20, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/197
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Method for stabilizing the frequency of a frequency synthesizer by means of a reference oscillator unit coupled to a voltage controlled oscillator (VCO) and a frequency synthesizer, wherein the synthesizer is provided with a phase locked loop (PLL) to stabilize the operation of the voltage controlled oscillator, wherein the reference oscillator unit is a MEMS (MicroElectromechanicalSystems) reference oscillator unit, the temperature of the MEMS reference oscillator unit is measured, and the output frequency is corrected according to the measured temperature by using a frequency/temperature function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.