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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Book ChapterDOI
Continuous-Time MASH Architectures forWideband DSMs
TL;DR: In this article, the authors compared two wideband MASH implementations in a 28 nm CMOS process and their properties and performances are discussed based on the architectural differences and a unique circuit block in continuous-time MASH, a continuous time residue generation circuit is discussed in detail.
A new Mismatch cancelation for Quadrature Delta Sigma Modulator
TL;DR: In this approach, a high speed and simple structure dynamic element matching (DEM) based on homogenization and time-division is designed and merged into one complex DAC for quadrature mismatch cancelation which leads to near-perfect I/Q balance.
Book ChapterDOI
A Unifying Framework for TDC Architectures
TL;DR: A TDC is an analog-to-digital converter that converts the duration of a time interval to a digital word.
Book ChapterDOI
White Space Communication Technologies: White spaces exploration using FPGA-based all-digital transmitters
Book ChapterDOI
Bandpass ΔΣ ADCs for Wireless Receivers
Richard Schreier,Hajime Shibata +1 more
TL;DR: Design concepts and an example of bandpass Delta-Sigma ADCs for wireless receivers are described and system decisions are compared and discussed in the context of wireless communication applications.
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.