Bandpass Sigma Delta Modulators

Author : Jurgen van Engelen,Rudy J. van de Plassche
Publisher : Springer Science & Business Media
Page : 190 pages
File Size : 46,7 Mb
Release : 2013-03-09
Category : Technology & Engineering
ISBN : 9781475745863

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Bandpass Sigma Delta Modulators by Jurgen van Engelen,Rudy J. van de Plassche Pdf

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.

Author : José M. de la Rosa,Belén Pérez-Verdú,Ángel Rodríguez-Vázquez
Publisher : Springer Science & Business Media
Page : 449 pages
File Size : 45,7 Mb
Release : 2007-05-08
Category : Technology & Engineering
ISBN : 9780306481949

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Systematic Design of CMOS Switched-Current Bandpass Sigma-Delta Modulators for Digital Communication Chips by José M. de la Rosa,Belén Pérez-Verdú,Ángel Rodríguez-Vázquez Pdf

This very detailed book discusses architectures, circuits and procedures for the optimum design of bandpass sigma-delta A/D interfaces for mixed-signal chips in standard CMOS technologies. It provides uniquely in-depth coverage of switched-current errors, which supports the design of high performance SI chips.

Author : Lisheng Qin
Publisher : Library and Archives Canada = Bibliothèque et Archives Canada
Page : 91 pages
File Size : 43,6 Mb
Release : 2004
Category : Electronic
ISBN : 0494039035

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Design and Validation of a GM-C Bandpass Sigma-delta Modulator Dedicated to Front-end Ultrasonic Receivers [microform] by Lisheng Qin Pdf

Author : Lucien Breems,Johan Huijsing
Publisher : Springer Science & Business Media
Page : 174 pages
File Size : 53,9 Mb
Release : 2001-08-31
Category : Technology & Engineering
ISBN : 9780792374923

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Continuous-Time Sigma-Delta Modulation for A/D Conversion in Radio Receivers by Lucien Breems,Johan Huijsing Pdf

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.

Author : Steven R. Norsworthy,Richard Schreier,Gabor C. Temes
Publisher : Wiley-IEEE Press
Page : 522 pages
File Size : 51,9 Mb
Release : 1997
Category : Technology & Engineering
ISBN : UOM:39015039047710

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Delta-Sigma Data Converters by Steven R. Norsworthy,Richard Schreier,Gabor C. Temes Pdf

This comprehensive guide offers a detailed treatment of the analysis, design, simulation and testing of the full range of today's leading delta-sigma data converters. Written by professionals experienced in all practical aspects of delta-sigma modulator design, Delta-Sigma Data Converters provides comprehensive coverage of low and high-order single-bit, bandpass, continuous-time, multi-stage modulators as well as advanced topics, including idle-channel tones, stability, decimation and interpolation filter design, and simulation.

Author : Josi M. De La Rosa,Belen Perez-Verdu,Angel Rodriguez-Vazquez
Publisher : Unknown
Page : 488 pages
File Size : 52,7 Mb
Release : 2014-01-15
Category : Electronic
ISBN : 1475783329

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Systematic Design of CMOS Switched-Current Bandpass SIGMA-Delta Modulators for Digital Communication Chips by Josi M. De La Rosa,Belen Perez-Verdu,Angel Rodriguez-Vazquez Pdf

Author : Jose M. de la Rosa
Publisher : John Wiley & Sons
Page : 568 pages
File Size : 40,8 Mb
Release : 2018-08-22
Category : Technology & Engineering
ISBN : 9781119275763

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Sigma-Delta Converters: Practical Design Guide by Jose M. de la Rosa Pdf

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.

Author : George I Bourdopoulos,Aristodemos Pnevmatikakis,Vassilis Anastassopoulos,Theodore L Deliyannis
Publisher : World Scientific
Page : 259 pages
File Size : 50,6 Mb
Release : 2003
Category : Technology & Engineering
ISBN : 9781860943690

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Delta-Sigma Modulators by George I Bourdopoulos,Aristodemos Pnevmatikakis,Vassilis Anastassopoulos,Theodore L Deliyannis Pdf

This important book deals with the modeling and design of higher-order single-stage delta-sigma modulators. It provides an overview of the architectures, the quantizer models, the design techniques and the implementation issues encountered in the study of the delta-sigma modulators. A number of applications are discussed, with emphasis on use in the design of analog-to-digital converters and in frequency synthesis. The book is education- rather than research-oriented, containing numerical examples and unsolved problems. It is aimed at introducing the final-year undergraduate, the graduate student or the electronic engineer to this field.

Author : Søren Hein,Avideh Zakhor
Publisher : Springer Science & Business Media
Page : 259 pages
File Size : 53,7 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781461531388

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Sigma Delta Modulators by Søren Hein,Avideh Zakhor Pdf

Analog-to-digital (A/D) converters are key components in digital signal processing (DSP) systems and are therefore receiving much attention as DSP becomes increasingly prevalent in telephony, audio, video, consumer products, etc. The varying demands on conversion rate, resolution and other characteristics have inspired a large number of competing A/D conversion techniques. Sigma Delta Modulators: Nonlinear Decoding Algorithms and Stability Analysis is concerned with the particular class of A/D techniques called oversampled noise-shaping (ONS) that has recently come into prominence for a number of applications. The popularity of ONS converters is due to their ease of implementation and robustness to circuit imperfectors. An ONS converter consists of an encoder that generates a high-rate, low-resolution digital signal, and a decoder that produces a low-rate, high-resolution digital approximation to the analog encoder input. The conventional decoding approach is based on linear filtering. Sigma Delta Modulators presents the optimal design of an ONS decoder for a given encoder. It is shown that nonlinear decoding can achieve gains in signaling ratio and the encoder architecture. The book then addresses the instability problem that plagues higher-order ONS encoders. A new stability concept is introduced that is well-suited to ONS encoders, and it is applied to the double-loop encoder as well as to the class of interpolative encoders. It is shown that there exists a trade-off between stability and SNR performance. Based on the results, explicit design examples are presented. Sigma Delta Modulators: Nonlinear Decoding Algorithms and Stability Analysis is a valuable reference source for researchers and engineers in industry and academia working on or interested in design and analysis of A/D converters, particularly to those working in quantization theory and signal reconstruction, and can serve as a text for advanced courses on the subjects treated.

Author : Friedel Gerfers,Maurits Ortmanns
Publisher : Springer Science & Business Media
Page : 257 pages
File Size : 51,8 Mb
Release : 2006-02-27
Category : Technology & Engineering
ISBN : 9783540284734

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Continuous-Time Sigma-Delta A/D Conversion by Friedel Gerfers,Maurits Ortmanns Pdf

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.

Author : Paulo Silva,Johan Huijsing
Publisher : Springer Science & Business Media
Page : 223 pages
File Size : 50,7 Mb
Release : 2008-02-29
Category : Technology & Engineering
ISBN : 9781402081644

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High-Resolution IF-to-Baseband SigmaDelta ADC for Car Radios by Paulo Silva,Johan Huijsing Pdf

High-Resolution IF-to-Baseband SigmaDelta ADC for Car Radios addresses the theory, system level design and circuit implementation of a high-resolution continuous-time IF-to-baseband quadrature SigmaDelta ADC. The target application of this ADC is in AM/FM/IBOC car radios. The ADC achieves a dynamic range of 118dB, which eliminates the need for an IF VGA or AM channel filter in car radios. The author is very well known within the Analog Circuits community.

Author : Jose M. de la Rosa,Rocio del Rio
Publisher : John Wiley & Sons
Page : 463 pages
File Size : 46,7 Mb
Release : 2013-03-13
Category : Technology & Engineering
ISBN : 9781118568439

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CMOS Sigma-Delta Converters by Jose M. de la Rosa,Rocio del Rio Pdf

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.

Author : Lucien Breems,Johan Huijsing
Publisher : Springer Science & Business Media
Page : 156 pages
File Size : 55,6 Mb
Release : 2006-04-18
Category : Technology & Engineering
ISBN : 9780306480041

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Continuous-Time Sigma-Delta Modulation for A/D Conversion in Radio Receivers by Lucien Breems,Johan Huijsing Pdf

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.

Author : Jose M. de la Rosa
Publisher : John Wiley & Sons
Page : 568 pages
File Size : 40,7 Mb
Release : 2018-08-22
Category : Technology & Engineering
ISBN : 9781119275756

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Sigma-Delta Converters: Practical Design Guide by Jose M. de la Rosa Pdf

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.

Author : Angel Rodríguez-Vázquez,Fernando Medeiro,Edmond Janssens
Publisher : Springer Science & Business Media
Page : 610 pages
File Size : 50,6 Mb
Release : 2013-03-09
Category : Technology & Engineering
ISBN : 9781475737240

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CMOS Telecom Data Converters by Angel Rodríguez-Vázquez,Fernando Medeiro,Edmond Janssens Pdf

CMOS Telecom Data Converters compiles the latest achievements regarding the design of high-speed and high-resolution data converters in deep submicron CMOS technologies. The four types of analog-to-digital converter architectures commonly found in this arena are covered, namely sigma-delta, pipeline, folding/interpolating and flash. For all these types, latest achievements regarding the solution of critical architectural and circuital issues are presented, and illustrated through IC prototypes with measured state-of-the-art performances. Some of these prototypes are conceived to be employed at the chipset of newest generation wireline modems (ADSL and ADSL+). Others are intended for wireless transceivers. Besides analog-to-digital converters, the book also covers other functions needed for communication systems, such as digital-to-analog converters, analog filters, programmable gain amplifiers, digital filters, and line drivers.