{"title":"Analytic limitations on sigma-delta modulator performance","authors":"J. Harrison, N. Weste","doi":"10.1109/ISCAS.2000.856168","DOIUrl":null,"url":null,"abstract":"Analytic limitations on the noise transfer function of sigma-delta modulators are derived. The noise transfer function magnitude in decibels integrated against frequency sums to at least zero. An excess delay of one sample in the modulator feedback loop is found to be detrimental for lowpass modulators.","PeriodicalId":91083,"journal":{"name":"IEEE International Symposium on Circuits and Systems proceedings. IEEE International Symposium on Circuits and Systems","volume":"70 1","pages":"746-749"},"PeriodicalIF":0.0000,"publicationDate":"2000-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"9","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE International Symposium on Circuits and Systems proceedings. IEEE International Symposium on Circuits and Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISCAS.2000.856168","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 9
Abstract
Analytic limitations on the noise transfer function of sigma-delta modulators are derived. The noise transfer function magnitude in decibels integrated against frequency sums to at least zero. An excess delay of one sample in the modulator feedback loop is found to be detrimental for lowpass modulators.
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