一种新型纯数字σ - δ a /D转换器的动态特性

Proceedings. SBCCI 2004. 17th Symposium on Integrated Circuits and Systems Design (IEEE Cat. No.04TH8784) Pub Date : 2004-09-04 DOI:10.1145/1016568.1016628

M. Jacomet, J. Goette, Venanz Zbinden, Christian Narvaez

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引用次数: 13

摘要

传统的Sigma - Delta (/spl Sigma//spl Delta/)模数(A/D)转换器是基于一个模拟/spl Sigma//spl Delta/调制器和一个数字滤波器。本文提出了一种不需要有源模拟元件的一阶/spl Sigma//spl Delta/调制器的新结构。我们称这种/spl Sigma//spl Delta/调制器为“纯数字”，并使用它在FPGA或直接在微处理器软件中实现A/D转换器。我们在这里讨论所提出的结构的动力行为的各个方面。

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On the dynamic behavior of a novel digital-only sigma-delta A/D converter

Conventional sigma-delta (/spl Sigma//spl Delta/) analog-to-digital (A/D) converters are based on an analog /spl Sigma//spl Delta/ modulator followed by a digital filter. In this paper we propose a new architecture of a first-order /spl Sigma//spl Delta/ modulator that needs no active analog components. We call this /spl Sigma//spl Delta/ modulator "digital-only," and implement with it A/D converters in FPGA's or directly in the software of microprocessors. We here discuss aspects of the dynamic behavior of the proposed structure.

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Proceedings. SBCCI 2004. 17th Symposium on Integrated Circuits and Systems Design (IEEE Cat. No.04TH8784)

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