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

Download or read book Design of Low Power and Low Area Passive Sigma Delta Modulators for Audio Applications written by David Fouto and published by Springer. This book was released on 2017-05-28 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.