Direct Digital Frequency Synthesizers

Direct Digital Frequency Synthesizers
Author: Venceslav F. Kroupa
Publisher: John Wiley & Sons
Total Pages: 402
Release: 1998-11-18
Genre: Technology & Engineering
ISBN: 0780334388

With the advent of integrated circuits (IC), digital systems havebecome widely used in modern electronic devices, includingcommunications and measurement equipment. Direct Digital FrequencySynthesizers (DDS) are used in communications as transmitterexciters and local oscillators in receivers. The advantages aresuperior frequency stability, the same as that of the driving clockoscillator, and short switching times. The difficulties are loweroutput frequencies and rather large spurious signals. Compiled for practicing engineers who do not have theprerequisite of a specialist's knowledge in Direct DigitalFrequency Synthesizers (DDS), this collection of 40 importantreprinted papers and 9 never-before published contributionspresents a comprehensive introduction to DDS properties and a clearunderstanding of actual devices. The information in this volume canlead to easier computer simulations and improved designs. Featured topics include: * Discussion of principles and state of the art of wide-rangeDDS * Investigation of spurious signals in DDS * Combination of DDS with Phase Lock Loops (PLL) * Examination of phase and background 'noise' in DDS * Introduction to Digital to Analog Conversion (DAC) * Analysis of mathematics of quasiperiodic omission ofpulses DDFS can also serve as a textbook for students seeking essentialbackground theory.

Acoustoelectronics '91 - Proceedings Of The 5th Conference

Acoustoelectronics '91 - Proceedings Of The 5th Conference
Author: L Spassov
Publisher: World Scientific
Total Pages: 186
Release: 1992-02-28
Genre:
ISBN: 9814555088

This book argues that only by reforming the international monetary system can we prevent financial crises in the future and the internationalization of the Renminbi, China's national currency, will be an important step in the process.Just as the old saying goes, 'An old building needs to be demolished before a new one can be erected in its place,' there will be no construction without destruction. The commencement of the dismantling of the old monetary system is also the beginning of the construction of the new one. Contrary to Western rhetoric, which portrays China as part of the cause of the recent financial crisis, the author contends that China is actually a victim of the current unjust international economic and monetary system. To address the imbalance and break the dollar-dominated international monetary system, the author calls for the internationalization of the Renminbi and diversification of the international monetary system.Written by one of the foremost financial practitioners in China, this book is thought-provoking and provides a unique Chinese perspective on how the international monetary system should be reformed, what the future system should look like and the role China should play in the process. It is a required reading for anyone interested in understanding China's own vision in its rise in the global political, economic and financial systems.

Proceedings

Proceedings
Author: International Telemetering Conference
Publisher:
Total Pages: 880
Release: 1990
Genre: Telemeter
ISBN:

Proceedings

Proceedings
Author:
Publisher:
Total Pages: 880
Release: 1990
Genre: Aerospace telemetry
ISBN:

Extreme Environment Electronics

Extreme Environment Electronics
Author: John D. Cressler
Publisher: CRC Press
Total Pages: 1041
Release: 2017-12-19
Genre: Technology & Engineering
ISBN: 143987431X

Unfriendly to conventional electronic devices, circuits, and systems, extreme environments represent a serious challenge to designers and mission architects. The first truly comprehensive guide to this specialized field, Extreme Environment Electronics explains the essential aspects of designing and using devices, circuits, and electronic systems intended to operate in extreme environments, including across wide temperature ranges and in radiation-intense scenarios such as space. The Definitive Guide to Extreme Environment Electronics Featuring contributions by some of the world’s foremost experts in extreme environment electronics, the book provides in-depth information on a wide array of topics. It begins by describing the extreme conditions and then delves into a description of suitable semiconductor technologies and the modeling of devices within those technologies. It also discusses reliability issues and failure mechanisms that readers need to be aware of, as well as best practices for the design of these electronics. Continuing beyond just the "paper design" of building blocks, the book rounds out coverage of the design realization process with verification techniques and chapters on electronic packaging for extreme environments. The final set of chapters describes actual chip-level designs for applications in energy and space exploration. Requiring only a basic background in electronics, the book combines theoretical and practical aspects in each self-contained chapter. Appendices supply additional background material. With its broad coverage and depth, and the expertise of the contributing authors, this is an invaluable reference for engineers, scientists, and technical managers, as well as researchers and graduate students. A hands-on resource, it explores what is required to successfully operate electronics in the most demanding conditions.