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

• Main Authors: Fouto, David (Author), Paulino, Nuno (Author)
• Corporate Author: SpringerLink (Online service)
• Format: Electronic eBook
• Language: English
• Published: Cham : Springer International Publishing : Imprint: Springer, 2017.
• Series: SpringerBriefs in Electrical and Computer Engineering,
• Subjects: Engineering.; Electronics.; Microelectronics.; Electronic circuits.; Circuits and Systems.; Signal, Image and Speech Processing.; Electronics and Microelectronics, Instrumentation.
• Physical Description: IX, 78 p. 70 illus., 38 illus. in color. online resource.
• ISBN: 9783319570334
• ISSN: 2191-8112

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.