Method and a system for calibrating a phase nonlinearity of a digital-to-time converter
US11245403B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2017 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Aug 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1071
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for calibrating a phase nonlinearity of a digital-to-time converter is provided. The method includes generating, based on a control word, a reference signal using a phase-locked loop. A frequency of the reference signal is equal to a frequency of an output signal of the digital-to-time converter. Further, the method includes measuring a temporal order of a transition of the output signal from a first signal level to a second signal level, and a transition of the reference signal from the first signal level to the second signal level. The method additionally includes adjusting a first entry of a look-up table based on the measured temporal order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.