Timing mismatch background calibration for time-interleaved ADCs

Tzu Yi Tang*, Tsung Heng Tsai, Kevin Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Time-interleaved analog-to-digital converters (TIADCs) are essential in wide-band communication systems for providing high-speed data conversion. However, TIADCs are sensitive to the sample time mismatch, which results in significantly degraded performance. A new calibration technique is proposed to minimize sample time mismatches among interleaved channels. Correlation between adjacent channels based on zero-crossing detection is utilized. The proposed calibration technique does not require any extra reference signal. Simulation results show that the proposed compensation technique is validated with a high degree of accuracy. For a 4-channel 6-bit TIADC, the undesired spectrum is reduced to below -48dB.

Original languageEnglish
Title of host publicationIEEE TENCON 2012
Subtitle of host publicationSustainable Development Through Humanitarian Technology
DOIs
StatePublished - 2012
Event2012 IEEE Region 10 Conference: Sustainable Development Through Humanitarian Technology, TENCON 2012 - Cebu, Philippines
Duration: 19 Nov 201222 Nov 2012

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON

Conference

Conference2012 IEEE Region 10 Conference: Sustainable Development Through Humanitarian Technology, TENCON 2012
Country/TerritoryPhilippines
CityCebu
Period19/11/1222/11/12

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