An Anti-Aliasing Multi-Rate ΣΔ Modulator

被引:0
|
作者
Carusone, Anthony Chan [1 ]
Maloberti, Franco [2 ]
机构
[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 1A1, Canada
[2] Univ Pavia, Dept Elect, Pavia, Italy
关键词
D O I
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中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
By splitting the input sampling capacitor of a Sigma Delta modulator into several time-interleaved branches, FIR filtering can be incorporated into the signal transfer function. Doing so imposes little or no overhead in the design of the opamps. Simulations of a 3rd-order modulator demonstrate that up to 65dB of anti-aliasing can be obtained with 5 time-interleaved switched capacitor branches.
引用
收藏
页码:1329 / +
页数:2
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