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System-level design of a delta-sigma modulator target for next generation wireless application

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System-level design of a delta-sigma modulator target for next generation wireless application

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Title: System-level design of a delta-sigma modulator target for next generation wireless application
Author: Qiu, Xiaobo; Siek, Liter; Tiew, Kei Tee
Copyright year: 2009
Abstract: Delta-sigma (Δ∑) converters have been widely used in wireless communications as they provide the most economic speed-accuracy tradeoff. This paper presents the system-level design of a multi-bit continuous-time (CT) Δ∑ analog-to-digital converter (ADC) targeting for the next generation wireless application. The modulator topology is determined based on the application requirements using MATLAB software. The nonidealities associated with the multi-bit CT Δ∑ modulator, such as excess loop delay, system clock jitter, integrator nonideality and multi-bit digital-toanalog converter (DAC) element mismatch, are also modeled in the system-level. With all the nonidealities included, the designed modulator achieves a dynamic range (DR) of 74dB (12 bits) in a 50-MHz signal bandwidth.
Subject: DRNTU::Engineering::Electrical and electronic engineering.
Type: Conference Paper
Conference name: IEEE International Symposium on Radio-Frequency Integration Technology (2009 : Singapore)
School: School of Electrical and Electronic Engineering
Rights: © 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. http://www.ieee.org/portal/site This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
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