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Multirate formulation for mismatch sensitivity analysis of analog-to-digital converters that utilize parallel S?-modulators
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Electronics System.
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Electronics System.
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Electronics System.
2008 (English)In: Eurasip Journal on Advances in Signal Processing, ISSN 1687-6172, Vol. 2008Article in journal (Refereed) Published
Abstract [en]

A general formulation based on multirate filterbanktheory for analog-to-digital converters using parallel sigmadeltamodulators in conjunction with modulation sequences ispresented. The time-interleaved modulators (TIMs), Hadamard modulators(HMs), and frequency-band decomposition modulators(FBDMs) can be viewed as special cases of the proposeddescription. The usefulness of the formulation stems from itsability to analyze a system's sensitivity to aliasing due to channel mismatch and modulation sequence level errors. BothNyquist-rate and oversampled systems are considered, and it isshown how the matching requirements between channels canbe reduced for oversampled systems. The new formulation isuseful also for the derivation of new modulation schemes, andan example is given of how it can be used in this context.

Place, publisher, year, edition, pages
2008. Vol. 2008
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-46466DOI: 10.1155/2008/289184OAI: oai:DiVA.org:liu-46466DiVA: diva2:267362
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2011-01-10

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Blad, AntonJohansson, HåkanLöwenborg, Per

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