通过ƒs/2调制消除ΣΔ模数转换器中的偏移

2011 20th European Conference on Circuit Theory and Design (ECCTD) Pub Date : 2011-10-13 DOI:10.1109/ECCTD.2011.6043340

Stephan Bannwarth, A. Wenzler, W. Mathis

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引用次数: 0

摘要

本文从复杂信号的信号和系统理论出发，推导出ƒs/2调制。介绍了如何将In相和正交相简化为一个单相，同时保持复杂信号的所有特性。进一步推导出，剩余相位预定用于ΣΔ调制。最后，仿真结果验证了理论推导的偏移消除特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Offset elimination in ΣΔ analog to digital converters by ƒs/2 modulation

This paper derives ƒs/2 modulation from signal and system theory of complex signals. It is presented, how the In phase and the Quadrature phase are reduced to a single phase, while all properties of complex signaling are maintained. Further, it is derived, that the remaining phase is predestinated for ΣΔ modulation. Finally, simulation results prove the theoretically derived offset-elimination property.

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2011 20th European Conference on Circuit Theory and Design (ECCTD)

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