具有高线性度的σ - δ调制器拓扑结构

电路与系统学报 Pub Date : 1997-06-09 DOI:10.1109/ISCAS.1997.608521

A. Magrath, M. Sandler

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引用次数: 10

摘要

提出了A /spl Sigma//spl Delta/调制器拓扑结构，通过修改环中量化器的传递函数实现高线性度。它适用于模数转换器和模数转换器。由于不需要随机噪声源，因此在A-D情况下获得了特殊的实现优势。实验结果表明，与传统的量化器抖动相比，该方案具有优良的动态范围特性。

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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A sigma-delta modulator topology with high linearity

A /spl Sigma//spl Delta/ modulator topology is presented which achieves high linearity by modifying the transfer function of the quantizer in the loop. It is applicable to both A-D and D-A converters. Particular implementation advantages are gained in the A-D case because no random noise source is required. Results are presented which show also that, in comparison to conventional quantizer dithering, the scheme has excellent dynamic range properties.

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来源期刊

电路与系统学报

自引率

0.00%

发文量

2463

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