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Improved Wideband Low Distortion Cascaded Delta-Sigma Modulator
Banff, Alberta, Canada July 20-July 24
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/IWSOC.2005.75Fifth International Workshop on Syste ...
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Xiaolong Yuan, Andreas Gothenberg, Xiaobo Wu, "Improved Wideband Low Distortion Cascaded Delta-Sigma Modulator," System-on-Chip for Real-Time Applications, International Workshop on, pp. 160-164, Fifth International Workshop on System-on-Chip for Real-Time Applications (IWSOC'05), 2005.
 
 
BibTex
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@article{ 10.1109/IWSOC.2005.75,
author = {Xiaolong Yuan and Andreas Gothenberg and Xiaobo Wu},
title = {Improved Wideband Low Distortion Cascaded Delta-Sigma Modulator},
journal ={System-on-Chip for Real-Time Applications, International Workshop on},
volume = {0},
year = {2005},
isbn = {0-7695-2403-6},
pages = {160-164},
doi = {http://doi.ieeecomputersociety.org/10.1109/IWSOC.2005.75},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
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TY - CONF
JO - System-on-Chip for Real-Time Applications, International Workshop on
TI - Improved Wideband Low Distortion Cascaded Delta-Sigma Modulator
SN - 0-7695-2403-6
SP160
EP164
A1 - Xiaolong Yuan,
A1 - Andreas Gothenberg,
A1 - Xiaobo Wu,
PY - 2005
KW - null
VL - 0
JA - System-on-Chip for Real-Time Applications, International Workshop on
ER -
 
Xiaolong Yuan, Zhejiang University
Andreas Gothenberg, Zhejiang University
Xiaobo Wu, Zhejiang University
It has recently become very popular to feedforward the input signal in wideband delta-sigma modulators, so that the integrators only process quantization errors. The advantage being that the actual signal is not distorted by opamp and integrator nonlinearities. In this paper, we focus on improved feedforward techniques for cascaded delta-sigma modulators. A feedforward cascaded structure is presented based on unity-gain signal transfer function (STF) and optimized noise transfer function (NTF) zero placement, using ?-analysis. The proposed structure has improved signal-to-noise-ratio (SNR) across the entire input range.
Citation:
Xiaolong Yuan, Andreas Gothenberg, Xiaobo Wu, "Improved Wideband Low Distortion Cascaded Delta-Sigma Modulator," iwsoc, pp.160-164, Fifth International Workshop on System-on-Chip for Real-Time Applications (IWSOC'05), 2005
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