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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), ??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 ??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 ??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 ?? 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.


Testing SAP R/3
A Manager’s Step-by-Step Guide Testing SAP R/3 A Manager’s Step-by-Step Guide

Автор: JOSE FAJARDO, ELFRIEDE DUSTIN

Год издания: 

Planning, preparing, scheduling, and executing SAP test cycles is a time-consuming and resource-intensive endeavor that requires participation from several project members. SAP projects are prone to have informal, ad-hoc test approaches that decrease the stability of the production environment and tend to increase the cost of ownership for the SAP system. Many SAP project and test managers cannot provide answers for questions such as how many requirements have testing coverage, the exit criteria for a test phase, the audit trails for test results, the dependencies and correct sequence for executing test cases, or the cost figures for a previously executed test cycle. Fortunately, through established testing techniques predicated on guidelines and methodologies (i.e., ASAP SAP Roadmap methodology, IBM’s Ascendant methodology, and Deloitte’s ThreadManager methodology), enforcement of standards, application of objective testing criteria, test case automation, implementation of a requirements traceability matrix (RTM), and independent testing and formation of centralized test teams, many of the testing risks that plague existing or initial SAP programs can be significantly reduced. This book is written for SAP managers, SAP consultants, SAP testers, and team leaders who are tasked with supporting, managing, implementing, and monitoring testing activities related to test planning, test design, test automation, test tool management, execution of test cases, reporting of test results, test outsourcing, planning a budget for testing activities, enforcing testing standards, and resolving defects.


Celtic Charted Designs (Dover Needlework Series) Celtic Charted Designs (Dover Needlework Series)

Автор: Co Spinhoven

Год издания: 

Более 350 кельтских орнаментов в виде схем для вышивки крестом (и других счетных техник рукоделия). Книга просто уникальная для всех любителей кельтского орнамента и любителей рукоделия. Уровень предложенных орнаментов - от простейших "косичек" до сложных "ковровых" рисунков. Короткий пояснительный текст на английском относится, главным образом, к технике вышивки. Все схемы даны в ч/б варианте, клетка очень мелкая но хорошо различимая.


Secure PHP Development: Building 50 Practical Applications Secure PHP Development: Building 50 Practical Applications

Автор: Mohammed J. Kabir

Год издания: 

The personal home page (PHP) server-side scripting language is particular well adapted to connecting HTML-based web pages to a backend database for dynamic content. This book explains the entire nuts-and-bolts process of the PHP application life cycle: requirements, design, development, maintenance and tuning. It shows how PHP can be used to design and develop highly manageable and secure applications to solve practical problems.


Oracle Database 10g: A Beginner's Guide Oracle Database 10g: A Beginner's Guide

Автор: 

Год издания: 

Two new Oracle instruction and resource titles from Osborne/McGraw-Hill are indispensable additions to personal and professional reference collections. Oracle Database 10g: A Beginner's Guide is the collective effort of Oracle experts Ian Abramson, Michael Abbey and Michael Corey. Oracle Database 10g provides neophytes with the fundamental concepts of Oracle Database 10g administration and programming. Through self-paced tutorials, readers will learn about database essentials, the role of the administrator, and large database features. Oracle Database 10g includes an in-depth introduction to SQL, PL/SQL, Java, and XML programming.


 Oracle Database 10g XML & SQL: Design, Build, & Manage XML Applications in Java, C, C++, & PL/SQL Oracle Database 10g XML & SQL: Design, Build, & Manage XML Applications in Java, C, C++, & PL/SQL

Автор: Mark Scardina

Год издания: 

Written by members of the Oracle XML group, this is a must-have reference for all IT managers, DBAs, and developers who want to learn the best practices for using XML with Oracle’s XML-enabled products. Includes real-world case studies based on theauthors’ experience managing Oracle’s XML Discussion Forum - a community of 20,000+ XML component users.