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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Proceedings ArticleDOI
Design of Oversampling ΔΣ DA Converters Via H ∞ Optimization
TL;DR: This paper proposes a new method for designing oversampling DeltaSigma DA converters via Hinfin optimization, and takes account of the characteristic of the original analog signal by using sampled-data HinfIn optimization.
Proceedings ArticleDOI
A sampling system based on Σ—Δ analog-to-digital converters
TL;DR: Advances in the hardware design of a system for characterizing and investigating high-resolution sigma-delta analog-to-digital converters with the help of sinusoidal and the PTB Josephson waveform synthesizers are described.
Proceedings ArticleDOI
PhaseSense — Signal Reconstruction from Phase-Only Measurements via Quadratic Programming
TL;DR: The problem of reconstructing a complex-valued signal from its phase-only measurements is considered and the proposed formalism applies to a broader class of signals, obtaining high accuracy for reconstructing 1–D synthetic signals in the absence of noise.
Proceedings ArticleDOI
Design strategy for Continous-Time Delta-Sigma based on power consideration for 4G radios
TL;DR: A power-estimation method for DS modulator is presented and based on this method the optimal topologies in terms of power are found for several wireless standards with different specifications and this forms a design strategy for reconfigurable Delta-Sigma ADCs.
Journal ArticleDOI
A self-calibration scheme for extended frequency-band-decomposition sigma-delta ADC
Philippe Benabes,Ali Beydoun +1 more
TL;DR: A self-calibration algorithm is focused on that helps minimize the quantization noise of the EFBD and helps to flatten the signal transfer function.
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.