Phase rotator based on voltage referencing
US8686776B2 · kind B2 · utility
3Cited by
18References
18Claims
0Family size
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Key dates
| Filing date | Jul 24, 2012 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Aug 7, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/13
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A phase rotator based on voltage referencing is disclosed. A voltage signal is generated that is proportional to the phase difference between two input signals. The voltage signal is then used as the upper voltage limit for a digital-to-analog converter (DAC). The DAC is programmable via an input vector to generate a DAC output. The DAC output is used to generate a phase rotated (phase shifted) output, which is at an intermediate phase between the two input signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.