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VHDL-AMS Modelling of Continuous-Time Complex Bandpass Delta Sigma Modulator

Abstract : Continuous-Time delta sigma modulators (CT DSM), by their nature, are mixed-signal systems. That fact creates a discontinuity in the traditional IC design flow which assumes that “discrete” and “continuous” time domain designs require separate design tools. In this work, we present a top level behavioral approach of modeling CT complex Bandpass (CBP) DSM using VHDL-AMS language. The CT DS model can be used within the analog IC design environment. Fifth-order CT CBP DSM which is tailor made for Bluetooth and WiFi Low-IF receiver demonstrates clearly the modeling technique.
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Contributor : Dominique Dallet <>
Submitted on : Friday, October 19, 2007 - 10:25:09 AM
Last modification on : Thursday, January 11, 2018 - 6:21:07 AM


  • HAL Id : hal-00180430, version 1


Nejmeddine Jouida, Chiheb Rebai, Adel Ghazel, Dominique Dallet. VHDL-AMS Modelling of Continuous-Time Complex Bandpass Delta Sigma Modulator. 12th Workshop on ADC Modelling and Testing, Sep 2007, Iasi, Romania. pp.131-135. ⟨hal-00180430⟩



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