Frequency-Band-Decomposition converters using Continuous-Time Sigma-Delta A/D Modulators

Abstract : Frequency-Band-Decomposition (FBD) is a good candidate to increase the bandwidths of ADC converters based on Sigma-Delta modulators, especially in the context of software radio, where very large bands need to be converted. Each modulator processes a part of the input signal band and is followed by an adapted digital filter. A new solution, called Extended Frequency-Band-Decomposition (EFBD) has been proposed during the ANR VersaNUM project, allowing large mismatches in the analog modulators without performance degradation, at the price of a calibration of the digital stage. This paper is an abstract of the whole project and presents its main results.
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Philippe Benabes, Ali Beydoun, Mohammad Javidan. Frequency-Band-Decomposition converters using Continuous-Time Sigma-Delta A/D Modulators. IEEE International NEWCAS Conference (NEWCAS-TAISA'09), 2009, Toulouse, France. 4 p., ⟨10.1109/NEWCAS.2009.5290513⟩. ⟨hal-00444348⟩



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