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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Active Cancellation of Servo-Induced Noise on Stabilized Lasers via Feedforward
TL;DR: In this article , a frequency error signal derived from a beat note between the laser and the light that passes through the reference cavity is fed forward to an electro-optic modulator after the laser, carefully accounting for relative delay, for real-time frequency correction.
Dissertation
Digital control of a class-D audio amplifier
TL;DR: Thesis submitted in fulfilment of the requirements for the degree of Master of Technology: Electrical Engineering in the Faculty of Engineering at the Cape Peninsula University of Technology in South Africa as discussed by the authors.
Journal ArticleDOI
Power Bounds and Energy Efficiency in Incremental $\Delta\Sigma$ Analog-to-Digital Converters
TL;DR: In this article, the theoretical energy efficiency bound for incremental analog-to-digital-converters (IADCs) was derived and compared with previously reported IADC designs.
Book ChapterDOI
A Design procedure for stable high order, high performance sigma-delta modulator loopfilters
Georgi Tsenov,Valeri Mladenov +1 more
TL;DR: This loopfilter function design is computed with fast theoretical calculation of the signal to noise ratio with mathematical formula, instead of approximation based on simulations and combined with theory that presents approximated value for modulator’s maximal stable DC input signal, resulting in design without the need of simulations of the modulator output bitstream.
Proceedings ArticleDOI
6G D-Band Receiver Model with High Spectral Efficiency Enabling Global System Optimization
TL;DR: A D-band wireless receiver model covering a complete Zero- & Low-IF receiver front-end, including high-level ADC specifications, that enables Rx verification with effective data rates beyond 30 Gbit/s for a single channel is presented.
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.