{"title":"用于多频带频率合成器的自适应数字δ - σ调制器","authors":"Yu Song, E. Moule, Z. Ignjatovic","doi":"10.1109/MWSCAS.2008.4616931","DOIUrl":null,"url":null,"abstract":"In this paper, we propose an adaptable-order single-loop digital DeltaSigma modulator which offers flexible noise shaping performance to maximize hardware sharing and power efficiency in multi-band frequency synthesizer applications. The proposed architecture utilizes feedback coefficients that allow computationally efficient digital implementation and also yield good noise shaping. Fixed-magnitude quantizer dithering is employed to eliminate idle channel tones and also to suppress in-band noise more efficiently than input dithering structures. MATLAB simulation was carried out. Finally, the proposed architecture was implemented and verified in an FPGA device.","PeriodicalId":118637,"journal":{"name":"2008 51st Midwest Symposium on Circuits and Systems","volume":"13 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Adaptable digital delta-sigma modulator for multiband frequency synthesizer\",\"authors\":\"Yu Song, E. Moule, Z. Ignjatovic\",\"doi\":\"10.1109/MWSCAS.2008.4616931\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, we propose an adaptable-order single-loop digital DeltaSigma modulator which offers flexible noise shaping performance to maximize hardware sharing and power efficiency in multi-band frequency synthesizer applications. The proposed architecture utilizes feedback coefficients that allow computationally efficient digital implementation and also yield good noise shaping. Fixed-magnitude quantizer dithering is employed to eliminate idle channel tones and also to suppress in-band noise more efficiently than input dithering structures. MATLAB simulation was carried out. Finally, the proposed architecture was implemented and verified in an FPGA device.\",\"PeriodicalId\":118637,\"journal\":{\"name\":\"2008 51st Midwest Symposium on Circuits and Systems\",\"volume\":\"13 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-09-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 51st Midwest Symposium on Circuits and Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSCAS.2008.4616931\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 51st Midwest Symposium on Circuits and Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSCAS.2008.4616931","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Adaptable digital delta-sigma modulator for multiband frequency synthesizer
In this paper, we propose an adaptable-order single-loop digital DeltaSigma modulator which offers flexible noise shaping performance to maximize hardware sharing and power efficiency in multi-band frequency synthesizer applications. The proposed architecture utilizes feedback coefficients that allow computationally efficient digital implementation and also yield good noise shaping. Fixed-magnitude quantizer dithering is employed to eliminate idle channel tones and also to suppress in-band noise more efficiently than input dithering structures. MATLAB simulation was carried out. Finally, the proposed architecture was implemented and verified in an FPGA device.
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