Time skew extraction of interleaved analog-to-digital converters
US8830094B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2013 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Dec 18, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/365
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An exemplary integrated circuit for performing time skew extraction includes a first subtractor, an array of subtractors separate from the first subtractor, and an array of averaging circuits. Inputs of the first subtractor are coupled to outputs of a plurality of channels of an interleaved analog-to-digital-converter and computes distances between samples of a signal that are measured consecutively by pairs of channels in the plurality of channels. At least some averaging circuits in the array of averaging circuits compute an average of those of the distances that correspond to a respective one of the pairs of channels; one averaging circuit in the array of averaging circuits computes an average of all of the distances. Each subtractor in the array of subtractors computes a difference between an average computed by one of the at least some of the averaging circuits and the average of all of the distances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.