Image calibration for time-interleaved digital-to-analog converter
US10516412B1 · kind B1 · utility
5Cited by
11References
29Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 21, 2018 |
| Grant date | Dec 24, 2019 |
| Priority date | — |
| Expiry date | Sep 21, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1004
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An interleaved digital-to-analog converter (DAC) system may include a first sub-DAC and a second sub-DAC and may be configured to provide both a converter output signal and a calibration output signal. The converter output signal may be provided by adding the first sub-DAC output signal and the second sub-DAC output signal. The calibration output signal may be provided by subtracting one of the first and second sub-DAC output signals from the other. The calibration output signal may be used as feedback to adjust the phase of one of the sub-DACs relative to the other, to promote phase matching their output signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.