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
More filters
Proceedings ArticleDOI
Generation method of a driving signal for a dual-mode supply modulator in a 3-level envelope delta-sigma modulator transmitter
TL;DR: In this paper, a method for generating a DMSM driving signal of trackable speed by a 3-level envelope delta-sigma modulator (EDSM) was proposed and confirmed by simulation and measurement.
Journal ArticleDOI
A Family of ΔΣ Modulators With High Spur Immunity and Low Folded Nonlinearity Noise When Used in Fractional- Frequency Synthesizers
TL;DR: This paper presents a family of DDSMs that have provably high spur immunity and low folded noise when used in fractional- ${N}$ frequency synthesizers with polynomial nonlinearities.
Book ChapterDOI
Design of a 3rd Order 1.5-Bit Continuous-Time Fully Differential Sigma-Delta (ΣΔ) Modulator Optimized for a Class D Audio Amplifier Using Differential Pairs
TL;DR: This paper presents a 3rd order 1.5-bit Continuous-Time Fully Differential ΣΔ modulator with distributed feedback for a class D audio amplifier, using BJT differential pairs to implement the integrator stages.
Proceedings ArticleDOI
Coding of Stereo Signals by a Single Digital {\Delta}{\Sigma} Modulator
TL;DR: The possibility of using a single digital ΔΣ modulator to simultaneously encode the two channels of a stereo signal is illustrated and if one channel is unused, it lets the other get improved dynamic range and SNR.
Journal ArticleDOI
Design of A 1-V 3rd-order 1-bit Σ-Δ modulator with inverter-based static–dynamic hybrid structure amplifiers
Xiao Chen,Zhigong Wang,Fei Li +2 more
TL;DR: The proposed 1-V 3rd-order 1-bit discrete time Σ-Δ modulator shows competitive figure of merits (FOMs) compared with other near-1V-supply hundred-kHz-BW modulators.
References
More filters
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.