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Look Ahead Based Sigma Delta Modulation
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Book Synopsis Look-Ahead Based Sigma-Delta Modulation by : Erwin Janssen
Download or read book Look-Ahead Based Sigma-Delta Modulation written by Erwin Janssen and published by Springer Science & Business Media. This book was released on 2011-04-02 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to expand and improve upon the existing knowledge on discrete-time 1-bit look-ahead sigma-delta modulation in general, and to come to a solution for the above mentioned specific issues arising from 1-bit sigma-delta modulation for SA-CD. In order to achieve this objective an analysis is made of the possibilities for improving the performance of digital noise-shaping look-ahead solutions. On the basis of the insights obtained from the analysis, several novel generic 1-bit look-ahead solutions that improve upon the state-of-the-art will be derived and their performance will be evaluated and compared. Finally, all the insights are combined with the knowledge of the SA-CD lossless data compression algorithm to come to a specifically for SA-CD optimized look-ahead design.
Book Synopsis Software-Based Acoustical Measurements by : Federico Miyara
Download or read book Software-Based Acoustical Measurements written by Federico Miyara and published by Springer. This book was released on 2017-05-26 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook provides a detailed introduction to the use of software in combination with simple and economical hardware (a sound level meter with calibrated AC output and a digital recording system) to obtain sophisticated measurements usually requiring expensive equipment. It emphasizes the use of free, open source, and multiplatform software. Many commercial acoustical measurement systems use software algorithms as an integral component; however the methods are not disclosed. This book enables the reader to develop useful algorithms and provides insight into the use of digital audio editing tools to document features in the signal. Topics covered include acoustical measurement principles, in-depth critical study of uncertainty applied to acoustical measurements, digital signal processing from the basics, and metrologically-oriented spectral and statistical analysis of signals. The student will gain a deep understanding of the use of software for measurement purposes; the ability to implement software-based measurement systems; familiarity with the hardware necessary to acquire and store signals; an appreciation for the key issue of long-term preservation of signals; and a full grasp of the often neglected issue of uncertainty in acoustical measurements. Pedagogical features include in-text worked-out examples, end-of-chapter problems, a glossary of metrology terms, and extensive appendices covering statistics, proofs, additional examples, file formats, and underlying theory.
Book Synopsis Sigma-Delta Converters: Practical Design Guide by : Jose M. de la Rosa
Download or read book Sigma-Delta Converters: Practical Design Guide written by Jose M. de la Rosa and published by John Wiley & Sons. This book was released on 2018-11-05 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly revised and expanded to help readers systematically increase their knowledge and insight about Sigma-Delta Modulators Sigma-Delta Modulators (SDMs) have become one of the best choices for the implementation of analog/digital interfaces of electronic systems integrated in CMOS technologies. Compared to other kinds of Analog-to-Digital Converters (ADCs), Σ∆Ms cover one of the widest conversion regions of the resolution-versus-bandwidth plane, being the most efficient solution to digitize signals in an increasingly number of applications, which span from high-resolution low-bandwidth digital audio, sensor interfaces, and instrumentation, to ultra-low power biomedical systems and medium-resolution broadband wireless communications. Following the spirit of its first edition, Sigma-Delta Converters: Practical Design Guide, 2nd Edition takes a comprehensive look at SDMs, their diverse types of architectures, circuit techniques, analysis synthesis methods, and CAD tools, as well as their practical design considerations. It compiles and updates the current research reported on the topic, and explains the multiple trade-offs involved in the whole design flow of Sigma-Delta Modulators—from specifications to chip implementation and characterization. The book follows a top-down approach in order to provide readers with the necessary understanding about recent advances, trends, and challenges in state-of-the-art Σ∆Ms. It makes more emphasis on two key points, which were not treated so deeply in the first edition: It includes a more detailed explanation of Σ∆Ms implemented using Continuous-Time (CT) circuits, going from system-level synthesis to practical circuit limitations. It provides more practical case studies and applications, as well as a deeper description of the synthesis methodologies and CAD tools employed in the design of Σ∆ converters. Sigma-Delta Converters: Practical Design Guide, 2nd Edition serves as an excellent textbook for undergraduate and graduate students in electrical engineering as well as design engineers working on SD data-converters, who are looking for a uniform and self-contained reference in this hot topic. With this goal in mind, and based on the feedback received from readers, the contents have been revised and structured to make this new edition a unique monograph written in a didactical, pedagogical, and intuitive style.
Book Synopsis CMOS Sigma-Delta Converters by : Jose M. de la Rosa
Download or read book CMOS Sigma-Delta Converters written by Jose M. de la Rosa and published by John Wiley & Sons. This book was released on 2013-03-13 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of Sigma-Delta Analog-to-Digital Converters (ADCs) and a practical guide to their design in nano-scale CMOS for optimal performance. This book presents a systematic and comprehensive compilation of sigma-delta converter operating principles, the new advances in architectures and circuits, design methodologies and practical considerations − going from system-level specifications to silicon integration, packaging and measurements, with emphasis on nanometer CMOS implementation. The book emphasizes practical design issues – from high-level behavioural modelling in MATLAB/SIMULINK, to circuit-level implementation in Cadence Design FrameWork II. As well as being a comprehensive reference to the theory, the book is also unique in that it gives special importance on practical issues, giving a detailed description of the different steps that constitute the whole design flow of sigma-delta ADCs. The book begins with an introductory survey of sigma-delta modulators, their fundamentals architectures and synthesis methods covered in Chapter 1. In Chapter 2, the effect of main circuit error mechanisms is analysed, providing the necessary understanding of the main practical issues affecting the performance of sigma-delta modulators. The knowledge derived from the first two chapters is presented in the book as an essential part of the systematic top-down/bottom-up synthesis methodology of sigma-delta modulators described in Chapter 3, where a time-domain behavioural simulator named SIMSIDES is described and applied to the high-level design and verification of sigma-delta ADCs. Chapter 4 moves farther down from system-level to the circuit and physical level, providing a number of design recommendations and practical recipes to complete the design flow of sigma-delta modulators. To conclude the book, Chapter 5 gives an overview of the state-of-the-art sigma-delta ADCs, which are exhaustively analysed in order to extract practical design guidelines and to identify the incoming trends, design challenges as well as practical solutions proposed by cutting-edge designs. Offers a complete survey of sigma-delta modulator architectures from fundamentals to state-of-the art topologies, considering both switched-capacitor and continuous-time circuit implementations Gives a systematic analysis and practical design guide of sigma-delta modulators, from a top-down/bottom-up perspective, including mathematical models and analytical procedures, behavioural modeling in MATLAB/SIMULINK, macromodeling, and circuit-level implementation in Cadence Design FrameWork II, chip prototyping, and experimental characterization. Systematic compilation of cutting-edge sigma-delta modulators Complete description of SIMSIDES, a time-domain behavioural simulator implemented in MATLAB/SIMULINK Plenty of examples, case studies, and simulation test benches, covering the different stages of the design flow of sigma-delta modulators A number of electronic resources, including SIMSIDES, the statistical data used in the state-of-the-art survey, as well as many design examples and test benches are hosted on a companion website Essential reading for Researchers and electronics engineering practitioners interested in the design of high-performance data converters integrated in nanometer CMOS technologies; mixed-signal designers.
Book Synopsis Constraint Programming and Decision Making: Theory and Applications by : Martine Ceberio
Download or read book Constraint Programming and Decision Making: Theory and Applications written by Martine Ceberio and published by Springer. This book was released on 2017-09-07 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes new algorithms and ideas for making effective decisions under constraints, including applications in control engineering, manufacturing (how to optimally determine the production level), econometrics (how to better predict stock market behavior), and environmental science and geosciences (how to combine data of different types). It also describes general algorithms and ideas that can be used in other application areas. The book presents extended versions of selected papers from the annual International Workshops on Constraint Programming and Decision Making (CoProd’XX) from 2013 to 2016. These workshops, held in the US (El Paso, Texas) and in Europe (Würzburg, Germany, and Uppsala, Sweden), have attracted researchers and practitioners from all over the world. It is of interest to practitioners who benefit from the new techniques, to researchers who want to extend the ideas from these papers to new application areas and/or further improve the corresponding algorithms, and to graduate students who want to learn more – in short, to anyone who wants to make more effective decisions under constraints.
Book Synopsis Nonlinear Maps and their Applications by : Ricardo López-Ruiz
Download or read book Nonlinear Maps and their Applications written by Ricardo López-Ruiz and published by Springer. This book was released on 2015-03-11 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the field of Dynamical Systems, nonlinear iterative processes play an important role. Nonlinear mappings can be found as immediate models for many systems from different scientific areas, such as engineering, economics, biology, or can also be obtained via numerical methods permitting to solve non-linear differential equations. In both cases, the understanding of specific dynamical behaviors and phenomena is of the greatest interest for scientists. This volume contains papers that were presented at the International Workshop on Nonlinear Maps and their Applications (NOMA 2013) held in Zaragoza, Spain, on September 3-4, 2013. This kind of collaborative effort is of paramount importance in promoting communication among the various groups that work in dynamical systems and networks in their research theoretical studies as well as for applications. This volume is suitable for graduate students as well as researchers in the field.
Book Synopsis A Second-Order ΣΔ ADC Using Sputtered IGZO TFTs by : Ana Paula Pinto Correia
Download or read book A Second-Order ΣΔ ADC Using Sputtered IGZO TFTs written by Ana Paula Pinto Correia and published by Springer. This book was released on 2015-12-29 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: This books discusses the design, electrical simulation and layout of a 2nd-order ∑∆ analog-to-digital converter (ADC), using oxide thin-film transistors (TFTs) technology. The authors provide a unified view of materials science and electronics engineering, in order to guide readers from both fields through key topics. To accomplish this goal, background regarding materials, device physics, characterization techniques, circuit design and layout is given together with a detailed discussion of experimental data. The final simulation results clearly demonstrate the potential of the proposed circuit-level techniques, which enables the implementation of robust and energy efficient ADCs based on oxide TFTs, for moderate resolutions and conversion-rates.
Book Synopsis Fundamentals of Electronics 3 by : Pierre Muret
Download or read book Fundamentals of Electronics 3 written by Pierre Muret and published by John Wiley & Sons. This book was released on 2018-04-16 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2.2.1. Dynamics and resolution -- 2.2.2. Static errors -- 2.2.3. Dynamic operation -- 2.3. Digital-to-analog conversion -- 2.3.1. Current- or voltage-weighted systems of 2n dynamics in binary code -- 2.3.2. Iterative resistance of a network of voltage and current dividers -- 2.3.3. R-2R ladders -- 2.3.4. Charge redistribution capacitive converters -- 2.4. Analog-to-digital conversion -- 2.4.1. Converter using 2n comparators or flash converter -- 2.4.2. Converters based on n successive approximations -- 2.4.3. Mixed or semi-flash converter -- 2.4.4. Ramp converters -- 2.5. "Sigma-delta" conversions -- 2.5.1. Basic first-order modulator-based "sigma-delta" ADC -- 2.5.2. First-order modulator sampled model -- 2.5.3. Modulators of order l > 1 and signal-to-noise ratio -- 2.5.4. Stable modulators of order greater than two and CMOS technology-based circuitry -- 2.5.5. Decimation filter -- 2.5.6. "Sigma-delta" DAC -- 2.6. Exercises -- 2.6.1. DAC based on R-2R network and current sources -- 2.6.2. Series DACs based on redistribution of charge -- 2.6.3. Parallel DACs based on redistribution of charge andreduced capacitance -- 2.6.4. Basic "delta-sigma" ADC -- 2.6.5. Third-order "MASH" modulator -- 2.6.6. Third-order digital filter of a multi-bit "sigma-delta" DAC -- Bibliography -- Index -- Other titles from iSTE in Electronics Engineering -- EULA
Book Synopsis Continuous-Time Sigma-Delta Modulation for A/D Conversion in Radio Receivers by : Lucien Breems
Download or read book Continuous-Time Sigma-Delta Modulation for A/D Conversion in Radio Receivers written by Lucien Breems and published by Springer Science & Business Media. This book was released on 2001-08-31 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text describes the design and theory of continuous-time sigma-delta modulators for analogue-to-digital conversion in radio receivers. The book's main focus is on dynamic range, linearity and power efficiency aspects of sigma-delta modulators, which are very important requirements for use in battery operated receivers.
Book Synopsis Bandpass Sigma Delta Modulators by : Jurgen van Engelen
Download or read book Bandpass Sigma Delta Modulators written by Jurgen van Engelen and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sigma delta modulation has become a very useful and widely applied technique for high performance Analog-to-Digital (A/D) conversion of narrow band signals. Through the use of oversampling and negative feedback, the quantization errors of a coarse quantizer are suppressed in a narrow signal band in the output of the modulator. Bandpass sigma delta modulation is well suited for A/D conversion of narrow band signals modulated on a carrier, as occurs in communication systems such as AM/FM receivers and mobile phones. Due to the nonlinearity of the quantizer in the feedback loop, a sigma delta modulator may exhibit input signal dependent stability properties. The same combination of the nonlinearity and the feedback loop complicates the stability analysis. In Bandpass Sigma Delta Modulators, the describing function method is used to analyze the stability of the sigma delta modulator. The linear gain model commonly used for the quantizer fails to predict small signal stability properties and idle patterns accurately. In Bandpass Sigma Delta Modulators an improved model for the quantizer is introduced, extending the linear gain model with a phase shift. Analysis shows that the phase shift of a sampled quantizer is in fact a phase uncertainty. Stability analysis of sigma delta modulators using the extended model allows accurate prediction of idle patterns and calculation of small-signal stability boundaries for loop filter parameters. A simplified rule of thumb is derived and applied to bandpass sigma delta modulators. The stability properties have a considerable impact on the design of single-loop, one-bit, high-order continuous-time bandpass sigma delta modulators. The continuous-time bandpass loop filter structure should have sufficient degrees of freedom to implement the desired (small-signal stable) sigma delta modulator behavior. Bandpass Sigma Delta Modulators will be of interest to practicing engineers and researchers in the areas of mixed-signal and analog integrated circuit design.
Book Synopsis Continuous-Time Sigma-Delta Modulation for IF A/D Conversion in Radio Receivers by : L. J. Breems
Download or read book Continuous-Time Sigma-Delta Modulation for IF A/D Conversion in Radio Receivers written by L. J. Breems and published by Delft University Press. This book was released on 2001-01-01 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Robert H.M. van Veldhoven Publisher :Springer Science & Business Media ISBN 13 :9400706448 Total Pages :296 pages Book Rating :4.4/5 (7 download)
Book Synopsis Robust Sigma Delta Converters by : Robert H.M. van Veldhoven
Download or read book Robust Sigma Delta Converters written by Robert H.M. van Veldhoven and published by Springer Science & Business Media. This book was released on 2011-01-30 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sigma Delta converters are a very popular choice for the A/D converter in multi-standard, mobile and cellular receivers. Key A/D converter specifications are high dynamic range, robustness, scalability, low-power and low EMI. Robust Sigma Delta Converters presents a requirement derivation of a Sigma Delta modulator applied in a receiver for cellular and connectivity, and shows trade-offs between RF and ADC. The book proposes to categorize these requirements in 5 quality indicators which can be used to qualify a system, namely accuracy, robustness, flexibility, efficiency and emission. In the book these quality indicators are used to categorize Sigma Delta converter theory. A few highlights on each of these quality indicators are; Quality indicators: provide a means to quantify system quality. Accuracy: introduction of new Sigma Delta Modulator architectures. Robustness: a significant extension on clock jitter theory based on phase and error amplitude error models. Extension of the theory describing aliasing in Sigma Delta converters for different types of DACs in the feedback loop. Flexibility: introduction of a Sigma Delta converter bandwidth scaling theory leading to very flexible Sigma Delta converters. Efficiency: introduction of new Figure-of-Merits which better reflect performance-power trade-offs. Emission: analysis of Sigma Delta modulators on emission is not part of the book The quality indicators also reveal that, to exploit nowadays advanced IC technologies, things should be done as much as possible digital up to a limit where system optimization allows reducing system margins. At the end of the book Sigma Delta converter implementations are shown which are digitized on application-, architecture-, circuit- and layout-level. Robust Sigma Delta Converters is written under the assumption that the reader has some background in receivers and in A/D conversion.
Book Synopsis Continuous-Time Delta-Sigma Modulators for High-Speed A/D Conversion by : James A. Cherry
Download or read book Continuous-Time Delta-Sigma Modulators for High-Speed A/D Conversion written by James A. Cherry and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among analog-to-digital converters, the delta-sigma modulator has cornered the market on high to very high resolution converters at moderate speeds, with typical applications such as digital audio and instrumentation. Interest has recently increased in delta-sigma circuits built with a continuous-time loop filter rather than the more common switched-capacitor approach. Continuous-time delta-sigma modulators offer less noisy virtual ground nodes at the input, inherent protection against signal aliasing, and the potential to use a physical rather than an electrical integrator in the first stage for novel applications like accelerometers and magnetic flux sensors. More significantly, they relax settling time restrictions so that modulator clock rates can be raised. This opens the possibility of wideband (1 MHz or more) converters, possibly for use in radio applications at an intermediate frequency so that one or more stages of mixing might be done in the digital domain. Continuous-Time Delta-Sigma Modulators for High-Speed A/D Conversion: Theory, Practice and Fundamental Performance Limits covers all aspects of continuous-time delta-sigma modulator design, with particular emphasis on design for high clock speeds. The authors explain the ideal design of such modulators in terms of the well-understood discrete-time modulator design problem and provide design examples in Matlab. They also cover commonly-encountered non-idealities in continuous-time modulators and how they degrade performance, plus a wealth of material on the main problems (feedback path delays, clock jitter, and quantizer metastability) in very high-speed designs and how to avoid them. They also give a concrete design procedure for a real high-speed circuit which illustrates the tradeoffs in the selection of key parameters. Detailed circuit diagrams, simulation results and test results for an integrated continuous-time 4 GHz band-pass modulator for A/D conversion of 1 GHz analog signals are also presented. Continuous-Time Delta-Sigma Modulators for High-Speed A/D Conversion: Theory, Practice and Fundamental Performance Limits concludes with some promising modulator architectures and a list of the challenges that remain in this exciting field.
Book Synopsis Circuits and Systems Based on Delta Modulation by : Djuro G. Zrilic
Download or read book Circuits and Systems Based on Delta Modulation written by Djuro G. Zrilic and published by Springer Science & Business Media. This book was released on 2006-03-30 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for students and professionals who are interested in the field of digital signal processing of delta-sigma modulated sequences. The overall focus is on the development of algorithms and circuits for linear, non-linear, and mixed mode processing of delta-sigma modulated pulse streams. The material presented here is directly relevant to applications in digital communication, DSP, instrumentation, and control.
Book Synopsis Understanding Delta-Sigma Data Converters by : Shanthi Pavan
Download or read book Understanding Delta-Sigma Data Converters written by Shanthi Pavan and published by John Wiley & Sons. This book was released on 2017-01-24 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition introduces operation and design techniques for Sigma-Delta converters in physical and conceptual terms, and includes chapters which explore developments in the field over the last decade Includes information on MASH architectures, digital-to-analog converter (DAC) mismatch and mismatch shaping Investigates new topics including continuous-time ΔΣ analog-to-digital converters (ADCs) principles and designs, circuit design for both continuous-time and discrete-time ΔΣ ADCs, decimation and interpolation filters, and incremental ADCs Provides emphasis on practical design issues for industry professionals
Book Synopsis Journal of the Audio Engineering Society by : Audio Engineering Society
Download or read book Journal of the Audio Engineering Society written by Audio Engineering Society and published by . This book was released on 2006 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Continuous-Time Sigma-Delta A/D Conversion by : Friedel Gerfers
Download or read book Continuous-Time Sigma-Delta A/D Conversion written by Friedel Gerfers and published by Springer Science & Business Media. This book was released on 2006-02-27 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sigma-delta A/D converters are a key building block in wireless and multimedia applications. This comprehensive book deals with all relevant aspects arising during the analysis, design and simulation of the now widespread continuous-time implementations of sigma-delta modulators. The results of several years of research by the authors in the field of CT sigma-delta modulators are covered, including the analysis and modeling of different CT modulator architectures, CT/DT loop filter synthesis, a detailed error analysis of all components, and possible compensation/correction schemes for the non-ideal behavior in CT sigma-delta modulators. Guidance for obtaining low-power consumption and several practical implementations are also presented. It is shown that all the proposed new theories, architectures and possible correction techniques have been confirmed by measurements on discrete or integrated circuits. Quantitative results are also provided, thus enabling prediction of the resulting accuracy.
