Segmented digital-to-time converter calibration
US9209958B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2014 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Jun 30, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0087
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This application discusses, among other things, calibration systems for ameliorating nonlinearity of a digital-to-time converter (DTC). In an example, a calibration system can include a calibration path configured to represent a segment of the DTC, a time-to-digital circuit configured to receive an output of the calibration path and the processed frequency information and to provide timing error information of the segment, and a calibration engine configured to receive controller modulation information from a main controller, to provide calibration modulation information to the DTC, to receive the timing error information, and to provide compensation information to a correction circuit coupled to the DTC using the timing error information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.