Power and area efficient digital-to-time converter with improved stability
US11177819B1 · kind B1 · utility
4Cited by
6References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2020 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Dec 3, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/804
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital-to-time converter (DTC) converts a digital code into a time delay using a capacitor digital-to-analog converter (CDAC) that functions as a charging capacitor. The DTC includes a switched capacitor voltage-to-current converter for the formation of a charging current (or a discharging current) for charging (or for discharging) the charging capacitor responsive to a triggering clock edge that begins the time delay. A comparator compares a voltage on the charging capacitor to a threshold voltage to determine an end of the time delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.