Delta-Sigma數(shù)據(jù)轉(zhuǎn)換器

內(nèi)容概要

本書介紹了Δ∑模數(shù)及數(shù)模轉(zhuǎn)換器的原理，引入了計(jì)算機(jī)輔助分析和設(shè)計(jì)技術(shù)。由于Delta-Sigma數(shù)據(jù)轉(zhuǎn)換的原理有著廣泛的應(yīng)用范圍，不僅限于數(shù)據(jù)轉(zhuǎn)換器，所以本書涉及面廣，包括數(shù)字電話、數(shù)字音頻、無線及有線通信、醫(yī)療電子等中的Δ∑轉(zhuǎn)換器。作者強(qiáng)調(diào)實(shí)際操作而不是復(fù)雜的數(shù)學(xué)推導(dǎo)，通過一階Δ∑調(diào)節(jié)器引出二階及高階調(diào)節(jié)器，同時(shí)討論了實(shí)現(xiàn)方法，給出了設(shè)計(jì)實(shí)例。本書從基本概念開始，由淺入深地介紹了Delta-Sigma轉(zhuǎn)換器，并結(jié)合實(shí)例幫助讀者理解，因此適應(yīng)各個(gè)層次的研究者，既適合于Delta-Sigma數(shù)據(jù)轉(zhuǎn)換的初學(xué)者，同時(shí)適合高年級本科生和研究生。

書籍目錄

ForewordReferencesCHAPTER1  Introduction  1.1 The Need for Oversampling Converters  1.2 Delta and Delta-SigmaModulation  1.3 Higher-Order Single-Stage Noise-SHaping Modulators  1.4 Multi-Stage(Cascade MASH)Modulators  1.5 BandpassΔ∑Modulators  1.6 Δ∑Modulators with Multi-Bit Quantizers  1.7 Delta-Sigma igital-to-Analog Conversters  1.8 History；Performance and Architecture TrendsCHAPTER2  The First-Order Delta Sigma Modulator  2.1 Quantizers and Quantization Noise  2.2 MODl as an ADC  2.3 MODl as a DAC  2.4 MODl Linear Model  2.5 Simulation of MODl  2.6 MODl under DC Excitation  2.7 Stability of MODl  2.8 THe Effects of Finite Op-Amp Gain  2.9 Decimation Filters for MODl  2.10 ConclusionsCHAPTER3  The Second-Order Delta-Sigma Modulator  3.1 The Second-Order Modulator:MOD2  3.2 Simulation of MOD2  3.3 Nonlinear Effects in MOD2  3.4 Alternative ZSecond-Order Modulator Structures  3.5 Decimation Filtering for Second-OrderΔ∑ Modulators   3.6 ConclusionsCHAPTER4  Higher-Order Delta-Sigma Modulation  4.1 High-Order Single-Quantizer Modulators  4.2 Stability Considerations in High-Order Modualtors  4.3 Optimization of the NTF Zeros and Poles  4.4 Loop Filter Achitecures  4.5 Multi-Stage Modulators  4.6 ConclusionsCHAPTER5  Bandpass and Quadrature Delta-Sigma Modulation  5.1 The Need for Bandpass and Quadrature Modulation  5.2 Bandpass NTF Selection  5.3 Architectures for Bandpass Delta-Sigma Modulators  5.4 Bandpass Modulator Example  5.5 Quadrature Signals  5.6 Quadrature Modulation  5.7 ConclusionsCHAPTER6  Implementation Considerations For Δ∑ ADCs  6.1 Modulators with Multi-Bit Internal Quantizers  6.2 Dual-Quantizer Modulators  6.3 Dynamic Element Randomization  ……CHAPTER7  Delat-Sigma DACsCHAPTER8  High-Level Design and SimulationCHAPTER9  Example Modulator SystemsAPPENDIX A Spectral EstimationAPPENDIX B The Delta-Sigma ToolboxAPPENDIX C Noise in Switched-Capacitor Delta-Sigma Data Converters

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