Blind calibration of timing skew in time-interleaved analog-to-digital converters
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Divi-2008-Blind Calibration of.pdf
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Author(s)
Divi, Vijay
Wornell, Gregory W.
Date Issued
May 2009
Journal
IEEE Journal of Selected Topics in Signal Processing
Publisher
Institute of Electrical and Electronics Engineers
Citation
Divi, V.; Wornell, G.W.; , "Blind Calibration of Timing Skew in Time-Interleaved Analog-to-Digital Converters," Selected Topics in Signal Processing, IEEE Journal of , vol.3, no.3, pp.509-522, June 2009
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4939442&isnumber=4939420 © 2009 Institute of Electrical and Electronics Engineers
Version
Final published version
Abstract
The performance of time-interleaved analog-to-digital converters is often significantly degraded by timing mismatch errors. We develop methods for performing blind calibration of such converters, i.e., for estimating the unknown time-skew parameters and for performing signal reconstruction from these estimates. The methods are low in complexity and allow for accurate calibration in systems with large numbers of converters, provided that the skews are sufficiently small in magnitude. We also present modifications to calibrate gain mismatch as well as adaptive sequential methods of implementation. Performance and complexity analysis is provided to support the viability of the methods.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1109/JSTSP.2009.2020269
