Wandering spurs in MASH 1-1 delta-sigma modulators

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dc.contributor.authorDonnelly, Yann
dc.contributor.authorKennedy, Michael Peter
dc.contributor.funderIrish Research Councilen
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderEnterprise Irelanden
dc.date.accessioned2019-02-08T11:59:16Z
dc.date.available2019-02-08T11:59:16Z
dc.date.issued2019-01-29
dc.date.updated2019-02-06T12:48:51Z
dc.description.abstractWandering spurs are a little-studied phenomenon seen in MASH and SQ-digital delta-sigma modulators. They take the form of frequency-modulated spurs which periodically appear in-band. Since modulators are often employed as divide ratio controllers in fractional-N phase lock loops, these spurs can feed into the output phase noise spectrum. In this paper, we explain the mechanism which creates the wandering spurs and offer a prediction for the behavior of these spurs in the MASH 1-1 modulator. Simulation results are presented which confirm our theoretical predictions.en
dc.description.sponsorshipIrish Research Council (Grant GOIPG/2014/14222); Enterprise Ireland (Grant T-2015-0019)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationDonnelly, Y. and Kennedy, M.P. (2019) 'Wandering spurs in MASH 1-1 delta-sigma modulators', IEEE Transactions on Circuits and Systems I: Regular Papers, pp. 1-14. doi:10.1109/TCSI.2019.2893435en
dc.identifier.doi10.1109/TCSI.2019.2893435
dc.identifier.endpage14en
dc.identifier.issn1549-8328
dc.identifier.issn1558-0806
dc.identifier.journaltitleIEEE Transactions on Circuits and Systems I: Regular Papersen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/7468
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Investigator Programme/13/IA/1979/IE/Advanced Frequency Synthesis Informed by Nonlinear Dynamics/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/13/RC/2077/IE/CONNECT: The Centre for Future Networks & Communications/en
dc.rights© 2019, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subjectMulti-stage noise shapingen
dc.subjectDelta-sigma modulationen
dc.subjectPhase locked loopsen
dc.subjectFrequency modulationen
dc.subjectPhase modulationen
dc.subjectPhase noiseen
dc.subjectWandering spuren
dc.subjectPLLen
dc.subjectMASHen
dc.subjectExperimentalen
dc.subjectModulatoren
dc.subjectDelta-sigmaen
dc.subjectSpectrumen
dc.subjectSpuren
dc.subjectPhase lock loopen
dc.subjectFrequency modulation.en
dc.titleWandering spurs in MASH 1-1 delta-sigma modulatorsen
dc.typeArticle (peer-reviewed)en
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