Functional Processing of Delta-Sigma Bit-Stream
This book discusses non-conventional digital signal processing based on direct processing of delta-sigma modulated bit-stream. The main attributes of low-pass delta-sigma analog-to-digital converters are: simple and inexpensive design, robustness of desig
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Functional Processing of Delta-Sigma Bit-Stream
Functional Processing of Delta-Sigma Bit-Stream
Djuro G. Zrilic
Functional Processing of Delta-Sigma Bit-Stream
Djuro G. Zrilic ECE Department University of New Mexico Albuquerque, NM, USA
ISBN 978-3-030-47647-2 ISBN 978-3-030-47648-9 (eBook) https://doi.org/10.1007/978-3-030-47648-9 © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2020 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors, and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, expressed or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. This Springer imprint is published by the registered company Springer Nature Switzerland AG The registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland
IN MEMORY OF Gojko and Mika Zrilic, my parents. Professor Georgie Lukatela, my Ph.D. thesis adviser at Belgrade University. Professor Savo Leonardis, my M.Sc. thesis adviser at Ljubljana University. Professor Dan Ross, Los Alamos National Laboratory, faithful friend and supporter.
Preface
During the past seven decades, many articles, books, patents, and industrial design notes dealing with aspects of delta-sigma modulation (Δ-ΣM) analog-to-digital converters (ADCs) have been published. The history of delta-modulation ADCs started with the French patent of E. M. Deloraine et al., issued in 1946. The inventors of the delta-modulator combined feedback with oversampling to achieve an increase in resolution. In order to eliminate the disadvantages of pulse amplitude modulation (PAM), they proposed per channel encoding of analog signals with pulses of constant amplitude using a 1-bit quantizer of small step size. This type of ADC is known as linear delta modulation (LDM) or just delta modulation. However, there are several problems with this type of modulation, such as slope overload, mismatch between modulator and demodulator digital-to-analog converters (DAC), and spurious pattern noises at cert
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