Simulink system model of sigma-delta analog-digital converter modulator

被引：0
|
作者：
Zhu, Zhang-Ming [1 ]
Yang, Yin-Tang [1 ]
机构：
[1] Institute of Microelectronics, Xidian University, Xi'an 710071, China
来源：
Xitong Fangzhen Xuebao / Journal of System Simulation | 2008年 / 20卷 / 24期
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学科分类号：
摘要：
Based on the structure of Sigma-Delta analog-to-digital converter, a system modeling method for over-sampling sigma-delta modulator was proposed by Simulink which is a simulation tool. Considering the modulator structure and the noise of circuits, the non-ideal system model for second-order low-pass and band-pass sigma-delta modulator were founded. For verifying the modeling method, the PSD and SNR of the modulators models was simulated. The proposed modeling method for Sigma-Delta modulator is significant for Sigma-Delta analog-to-digital converter design.
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页码：6799 / 6802
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