Open AccessBook
Understanding Delta-Sigma Data Converters
TLDR
This chapter discusses the design and simulation of delta-sigma modulator systems, and some of the considerations for implementation considerations for [Delta][Sigma] ADCs.Abstract:
Chapter 1: Introduction.Chapter 2: The first-order delta-sigma modulator.Chapter 3: The second-order delta-sigma modulator.Chapter 4: Higher-order delta-sigma modulation.Chapter 5: Bandpass and quadrature delta-sigma modulation.Chapter 6: Implementation considerations for [Delta][Sigma] ADCs.Chapter 7: Delta-sigma DACs.Chapter 8: High-level design and simulation.Chapter 9: Example modulator systems.Appendix A: Spectral estimation.Appendix B: The delta-sigma toolbox.Appendix C: Noise in switched-capacitor delta-sigma data converters.read more
Citations
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Journal ArticleDOI
Excess loop delay cancellation in sigma–delta modulators
TL;DR: In this article, the error originated from the loop delay is calculated analytically and a new structure for sigma-delta modulators is presented based upon this calculation, which can compensate the effect of loop-delay error completely independent of amount of delay.
Proceedings ArticleDOI
OFDM performance with odd-even quantisation in Cartesian ΔΣ upconverters
TL;DR: Interestingly, the overall better noise performance of the odd-quantisation scheme does not improve the distortion spectra, so best performance occurs when frequency offsetting is avoided.
Proceedings ArticleDOI
CBSC-based pipelined analog-to-digital converters: Power dissipation bound analysis
TL;DR: The objective of this paper is to derive the theoretical minimum power dissipation bound for CBSC-based pipelined ADCs with digital error correction of 1.5 bit/stage through behavioral simulation in MATLAB.
DissertationDOI
An 11-bit, 12.5-MHz, Low-Power, Low-Voltage, Continuous-Time Sigma-Delta Modulator in 0.13 µm CMOS Technology
TL;DR: The author’s personal website is www.zusammenfassung.de.
References
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Journal ArticleDOI
A higher order topology for interpolative modulators for oversampling A/D converters
TL;DR: Higher order modulators are shown not only to greatly reduce oversampling requirements for high-resolution conversion applications, but also to randomize the quantization noise, avoiding the need for dithering.
Journal ArticleDOI
Decimation for Sigma Delta Modulation
TL;DR: It is shown that digital filters comprising cascades of integrate-and-dump functions can match the structure of the noise from sigma delta modulation to provide decimation with negligible loss of signal-to-noise ratio.
Journal ArticleDOI
An analysis of nonlinear behavior in delta - sigma modulators
Sasan H. Ardalan,J.J. Paulos +1 more
TL;DR: This paper introduces a new method of analysis for deltasigma modulators based on modeling the nonlinear quantizer with a linearized gain, obtained by minimizing a mean-square-error criterion, followed by an additive noise source representing distortion components.
Book ChapterDOI
The Structure of Quantization Noise from Sigma-Delta Modulation
James C. Candy,O. Benjamin +1 more
TL;DR: Simple algebraic expressions for this modulation noise and its spectrum in terms of the input amplitude are derived and can be useful for designing oversampled analog to digital converters that use sigma-delta modulation for the primary conversion.
Journal ArticleDOI
A fourth-order bandpass sigma-delta modulator
TL;DR: The modulator of a bandpass analog/digital (A/D) converter, with 63 dB signal/noise for broadcast AM bandwidth signals centered at 455 kHz, has been implemented by modifying a commercial digital-audio sigma-delta ( Sigma Delta ) converter.