Noise-shaped segmented digital-to-analog converter
US7969340B2 · kind B2 · utility
7Cited by
1References
17Claims
0Family size
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Key dates
| Filing date | Jul 22, 2009 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Aug 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/502
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A segmented digital-to-analog converter (DAC) is disclosed. In the present invention, the segmented DAC of the present invention comprises a signal component processing stage and a plurality of noise component processing stages cascaded with the signal component processing stage. A noise component of an input word for the DAC is split into a plurality of portions to be processed. By doing so, effect due to gain mismatch(es) in an analog portion of the DAC can be effectively reduced without significantly increasing DAC cells used in the DAC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.