Design, optimization and realization of an HFB-based ADC

Amandine Lesellier 1 Olivier Jamin 1 Jean-François Bercher 2 Olivier Venard 3
1 NxP
NXP Semiconductors
2 LIGM - Laboratoire d'Informatique Gaspard-Monge
3 ESYCOM - Electronique, Systèmes de communication et Microsystèmes
Abstract : This paper presents a two-channel Hybrid Filter Bank (HFB) Analog-to-Digital Converter (ADC) that targets broadband digitization, for Cognitive Radio (CR) applications. The proposed architecture partitioning uses low-cost third order Butterworth analog filters and fourth order digital IIR filters. The optimization algorithm combines direct simplex search, minimax methods and a perturbation strategy to avoid local minima. A sensitivity study of the analog filters quantifies the impact of poles and zeros spread on system performance. Finally, the experimental results obtained from our concrete realization are reported. The measurements show the aliasing rejection provided by HFB structure and confirms the parallel architecture sensitivity to analog mismatches.
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Communication dans un congrès
Circuit Theory and Design (ECCTD), 2011 20th European Conference on, Aug 2011, Linkoping, Sweden. pp.138 - 141, 2011, 〈10.1109/ECCTD.2011.6043296〉
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Contributeur : Jean-François Bercher <>
Soumis le : mardi 18 décembre 2012 - 13:59:45
Dernière modification le : jeudi 31 mai 2018 - 18:04:01
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LIGM | LIGM_SIGNAL | ENPC-LIGM | PARISTECH | UNIV-MLV | ENPC | UPEC-UPEM | ESYCOM

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Amandine Lesellier, Olivier Jamin, Jean-François Bercher, Olivier Venard. Design, optimization and realization of an HFB-based ADC. Circuit Theory and Design (ECCTD), 2011 20th European Conference on, Aug 2011, Linkoping, Sweden. pp.138 - 141, 2011, 〈10.1109/ECCTD.2011.6043296〉. 〈hal-00766464〉

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