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An approach to the design of cascade ΣΔ modulators

AuthorsMorgado, Alonso; Rosa, José M. de la ; Río, Rocío del; Medeiro, Fernando ; Pérez-Verdú, Belén ; Fernández, Francisco V. ; Rodríguez-Vázquez, Ángel
Issue Date2005
PublisherWorld Scientific and Engineering Academy and Society
CitationProceedings of the 4th WSEAS international conference on Electronics, control and signal processing: 229-234 (2005)
AbstractThis paper discusses issues concerning the design of cascade sigma-delta modulators intended for multistandard wireless receivers. Four standards are covered: GSM, Bluetooth, UMTS, and WLAN. A top-down design methodology is proposed to find out the optimum modulator topology in terms of circuit complexity and reconfiguration parameters. Several reconfiguration strategies are adopted at both architecture-and circuit-level in order to adapt the modulator performance to the standards requirements with adaptive power consumption. Time-domain behavioural simulations are shown to validate the presented approach.
Identifiersisbn: 960-8457-38-6
Appears in Collections:(IMSE-CNM) Libros y partes de libros
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