Delta-Sigma Modulators: Modeling, Design and Applications
Imperial College Press, 2003 - Technology & Engineering - 259 pages
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. Contents: Analog to Digital Conversion; ou Modulators OCo Architectures; Single-Bit Single-Stage ou Modulators, Modeling and Design; Implementation of ou Modulators; Practical Limitations of ou Modulators; Stabilization and Suppression of Tones for the Higher-Order Single-Stage ou Modulators; Decimation, Interpolation and Converters; Applications. Readership: Final-year undergraduates; graduate students; electrical, electronic and systems engineers."
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Analog to Digital Conversion
SingleBit SingleStage A Modulators Modeling and Design
Implementation of AΣ Modulators
Practical Limitations of AΣ Modulators
Stabilization and Suppression of Tones for HigherOrder
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Common terms and phrases
achieved activated adaptive amplitude analog applications assume attenuation band-pass bandwidth becomes block diagram chapter Circuits clock compared components considered constant Converters corresponding decimation Delta Delta-Sigma depends determined Digital Signal dither dynamic effect employing equal error example Finally finite first-order follows frequency gain given Hence higher ideal implementation important in-band increase input signal integrators interpolation limit linear loop filter low-pass maximum means method modulator multi-bit needed noise source obtained opamp operation output oversampling performance period phase poles positive presented problem pulse quantization noise range reduced result sampling rate second-order selection sequence shaped shown in Fig Sigma-Delta Signal Processing simulation single-bit Solid-State Circuits spectrum stabilization stage structure suppression techniques third-order threshold tones transfer function unstable various voltage Vref zeros