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OverviewThe analysis of the quantization noise in delta-sigma modulators is not a trivial task. State-of-the-art analysis methods include modelling the quantization noise as a uniform distributed white noise. However, it is not uncommon to observe limit cycle oscillations and tones at the output of a delta-sigma modulator. In most of the applications, these limit cycles and tones are strictly objectionable. Such an application, for instance, is a Fractional-N PLL frequency synthesizer, where idle tones and limit cycles generated from the delta-sigma modulator directly appear in the synthesized RF waveform as spurious components. The relatively small conversion bandwidth is another important limitation of delta-sigma modulators. Due to their oversampling nature, delta-sigma modulators have been used in low frequency applications. This book presents theorems and their mathematical proofs for the exact analysis of the quantization noise in delta-sigma modulators. Extensive mathematical equations are included throughout the book to analyze both single-stage and multi-stage architectures. It has been proved that appropriately set initial conditions generate tone-free output, provided that the modulator order is at least three. These results are applied to the design of a Fractional-N PLL frequency synthesizer to produce spurious free RF waveforms. Furthermore, the book also presents time-interleaved topologies to increase the conversion bandwidth of delta-sigma modulators. The topologies have been generalized for any interleaving number and modulator order and the book contains sufficient detail to enable readers with little background in the subject to easily follow the material in it. It should be of interest to graduate students, researchers and practising circuit designers in the areas of delta-sigma based data converters and Fractional-N PLL frequency synthesizer design. Full Product DetailsAuthor: Mücahit Kozak , Izzet KalePublisher: Springer-Verlag New York Inc. Imprint: Springer-Verlag New York Inc. Edition: 2003 ed. Dimensions: Width: 16.00cm , Height: 2.50cm , Length: 24.00cm Weight: 0.580kg ISBN: 9781402074202ISBN 10: 1402074204 Pages: 226 Publication Date: 31 July 2003 Audience: College/higher education , Professional and scholarly , Undergraduate , Postgraduate, Research & Scholarly Format: Hardback Publisher's Status: Active Availability: Out of stock  The supplier is temporarily out of stock of this item. It will be ordered for you on backorder and shipped when it becomes available. Table of ContentsBasic Principles of Delta-Sigma Modulation.- Analysis of Mash Delta-Sigma Modulators with DC Inputs.- Analysis of Single-Stage Delta-Sigma Modulators with DC Inputs.- Fractional-N Pll frequency Synthesizers.- Time-Interleaved Delta-Sigma Modulators.ReviewsFrom the reviews: <p> This book describes the principles of operation of oversampled (delta sigma symbol) modulators and gives an exact analysis and speed limitations of these non-linear complex circuits. a ] The book should be useful both as a reference book to graduate students, and researchers and practising engineers in the field of mixed-signal VLSI design. After finishing the text, the total picture of design including analysis, modeling, simulation, and implementation of this type of circuits is presented to the reader. a ] I highly recommend this book. (Mile Stojcev, Microelectronics Reliability, Vol. 44, 2004) Author InformationTab Content 6Author Website:Countries AvailableAll regions |
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