Techniques for configuring multi-path feedback loops
US8125254B1 · kind B1 · utility
10Cited by
12References
22Claims
0Family size
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Inventor
Key dates
| Filing date | Nov 5, 2009 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Dec 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L2207/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In some embodiments, a feedback loop circuit includes a phase detector, first and second charge pumps that are each coupled to receive an output signal of the phase detector, a first low pass filter, a second low pass filter coupled to an output of the second charge pump, a clock signal generation circuit having first and second control inputs, a first switch circuit coupled between the first low pass filter and the second low pass filter, and a second switch circuit coupled to the first low pass filter and the first control input of the clock signal generation circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.