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Title

Reconfiguration of Cascade ΣΔ Modulators for Multistandard GSM/Bluetooth/UIMTS/WLAN Transceivers

AuthorsMorgado, Alonso; Río, Rocío del; Rosa, José M. de la ; Medeiro, Fernando ; Pérez-Verdú, Belén ; Fernández, Francisco V. ; Rodríguez-Vázquez, Ángel
KeywordsSigma-Delta Modulators
Multi-Standard Transceivers
Issue DateMay-2006
PublisherInstitute of Electrical and Electronics Engineers
CitationA. Morgado, J. M. de la Rosa, R. del Río, B. Pérez-Verdú, F. Medeiro and A. Rodríguez-Vázquez: "Reconfiguration of Cascade ΣΔ Modulators for Multistandard GSM/Bluetooth/UMTS/WLAN Transceivers", Proceedings of the 2006 International Symposium on Circuits and Systems (ISCAS).
AbstractThis paper presents design considerations for cascade Sigma-Delta Modulators (ΣΔMs) included in multi-standard wireless transceivers. Four different standards are covered: GSM, Bluetooth, UMTS and WLAN. A top-down design methodology is proposed to find out the optimum modulator architecture in terms of circuit complexity and reconfiguration parameters. The selected 2-1^(L-2) expandible YAM is high-level sized and several reconfiguration strategies are adopted at both architecture- and circuit-level in order to adapt the modulator performance to the different standards requirements with adaptive power consumption. Time-domain simulations are shown to validate the presented approach.
URIhttp://hdl.handle.net/10261/3828
Appears in Collections:(IMSE-CNM) Comunicaciones congresos
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