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Design of Low Power and Low Area Passive Sigma Delta Modulators for Audio Applications

  • Book
  • © 2017

Overview

  • Enables the design of a Sigma Delta modulator, an oversampling converter, for audio and biomedical applications
  • Describes methods for minimizing both circuit area and power dissipation
  • Presents techniques that use passive integrators based on the ultra-incomplete settling concept, employing a switched capacitor topology, eliminating the need for a high gain amplifier
  • Includes supplementary material: sn.pub/extras
  • Includes supplementary material: sn.pub/extras

Part of the book series: SpringerBriefs in Electrical and Computer Engineering (BRIEFSELECTRIC)

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Table of contents (5 chapters)

Keywords

About this book

This book presents the study, design, modulation, optimization and implementation of low power, passive DT-ΣΔMs for use in audio applications. The high gain and bandwidth amplifier normally used for integration in ΣΔ modulation, is replaced by passive, switched-capacitor branches working under the Ultra Incomplete Settling (UIS) condition, leading to a reduction of the consumed power. The authors describe a design process that uses high level models and an optimization process based in genetic algorithms to achieve the desired performance.

Authors and Affiliations

  • Campus da Faculdade de Ciências e Tecnol, Universidade Nova de Lisboa, Caparica, Portugal

    David Fouto, Nuno Paulino

About the authors

David Fouto is a researcher in the Department of Electrical Engineering, Faculdade de Ciências e Tecnologia of the Universidade Nova de Lisboa, Portugal.

Nuno Paulino is a Professor in the Department of Electrical Engineering, Faculdade de Ciências e Tecnologia of the Universidade Nova de Lisboa, Portugal.

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