Blind Calibration of Timing Skew in Time-Interleaved Analog-to-Digital Converters
Authors:
- 19 May 2009
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Selected Topics in Signal Processing
- Vol. 3 (3) , 509-522
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.Keywords
This publication has 23 references indexed in Scilit:
- Blind Calibration of Timing Offsets for Four-Channel Time-Interleaved ADCsIEEE Transactions on Circuits and Systems I: Regular Papers, 2007
- Fast Algorithms for Blind Calibration in Time-Interleaved Analog-to-Digital Converters2007
- A Frequency Domain Method for Blind Identification of Timing Mismatches in Time-Interleaved ADCs2006
- Adaptive blind calibration of timing offset and gain mismatch for two-channel time-interleaved ADCsIEEE Transactions on Circuits and Systems I: Regular Papers, 2006
- Blind Correction of Gain and Timing Mismatches for a Two-Channel Time-Interleaved Analog-to-Digital Converter2005
- Blind Adaptive Equalization of Mismatch Errors in a Time-Interleaved A/D Converter SystemIEEE Transactions on Circuits and Systems I: Regular Papers, 2004
- Reconstruction of nonuniformly sampled bandlimited signals by means of digital fractional delay filtersIEEE Transactions on Signal Processing, 2002
- Filterbank reconstruction of bandlimited signals from nonuniform and generalized samplesIEEE Transactions on Signal Processing, 2000
- Reconstruction of irregularly sampled discrete-time bandlimited signals with unknown sampling locationsIEEE Transactions on Signal Processing, 2000
- An analog background calibration technique for time-interleaved analog-to-digital convertersIEEE Journal of Solid-State Circuits, 1998