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ECOLE SUPÉRIEURE D'ÉLECTRICITÉ Une grande école d'ingénieurs au cœur des sciences de l'information,de l'énergie et des systèmes |
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| HAL : hal-00216031, version 2 |
| DOI : 10.1109/ISCAS.2008.454810 |
| Fiche détaillée | Récupérer au format |
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| IEEE, ISCAS International Symposium on Circuits and Systems, Seattle : États-Unis d'Amérique (2008) |
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| Versions disponibles : | v1 (04-04-2008) | v2 (28-04-2008) |
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| Fixed-step Simulation of Continuous-Time sigma-delta Modulators |
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| Philippe Benabes 1Ali Beydoun 1 |
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| (05/2008) |
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| A methodology for the simulation of continuous time sigma-delta (ΣΔ) converters is presented in this paper. This method permits the simulation of ΣΔ modulators employing continuous-time filters using a fixed-step algorithm. The analysis method is based on the discretization of a continuous-time model and using a discrete simulator, which is more efficient than an analog simulator. In our analysis approach, each samplingperiod is divided into a fixed number of steps. This transformation is exact in term of Noise Transfer Function and asymptotically exact in term of Signal Transfer Function (the Signal Transfer Function of the model rapidly tends to the continuous time model transfer function when the number of steps increases). Moreover, the ideal step-size can be estimated from the bandwidth of the input signal. |
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| 1 : | SUPELEC-Campus Gif |
| SUPELEC | |
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| [SSE - Département Signaux et Systèmes Electroniques - EA 2523] |
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| Domaine | : | Sciences de l'ingénieur/Electronique Sciences de l'ingénieur/Traitement du signal et de l'image Informatique/Traitement du signal et de l'image |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00216031, version 2 | |
| http://hal-supelec.archives-ouvertes.fr/hal-00216031 | |
| oai:hal-supelec.archives-ouvertes.fr:hal-00216031 | |
| Contributeur : Karine El Rassi | |
| Soumis le : Jeudi 17 Avril 2008, 10:35:42 | |
| Dernière modification le : Vendredi 16 Janvier 2009, 16:10:29 | |