A fast SNR estimation method for sigma-delta modulator design

A fast SNR estimation method for sigma-delta modulator design
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DOI：
10.1109/tencon.2013.6719036
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发表时间：
2013-10
期刊：
2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)
影响因子：
--
通讯作者：
J. Cheng;G. Shi;Ailin Zhang
J. Cheng;G. Shi;Ailin Zhang
中科院分区：
其他
文献类型：
--
作者：
J. Cheng;G. Shi;Ailin Zhang

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This paper presents a fast symbolic method for computation of the signal-to-noise ratio (SNR) of switched-capacitor sigma-delta modulators. The key idea is to use a Taylor expansion polynomial to approximate the rational expression of a noise transfer function (NTF). This new method can be used in automatic optimization tools developed for switched-capacitor sigma-delta modulator design.