一种防止限环振荡的四阶本地前馈D/A转换器

2002 Symposium on VLSI Circuits. Digest of Technical Papers (Cat. No.02CH37302) Pub Date : 2002-06-13 DOI:10.1109/VLSIC.2002.1015119

Y. Matsuya, Y. Kado, J. Terada, T. Eguchi, M. Tamura, H. Fujiwara

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引用次数: 1

摘要

噪声整形型数模转换器的限环振荡是一个严重的问题，它中断了模数转换器的噪声整形工作。我们提出了一种新的防止极限环振荡的噪声整形结构。我们已经在我们制造的音频D/A转换器中使用了这种结构。测量结果表明，即使输入数据为实零，也能有效地防止极限环振荡，保持噪声整形运算。该D/A转换器的信噪比为101 dB。

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 4th-order local-feedforward D/A converter that prevents limit-cycle oscillation

Limit-cycle oscillation in noise-shaping D/A converters is one of serious problems because it interrupts their noise-shaping operation. We propose a new noise-shaping structure that prevents limit-cycle oscillation. We have used this structure in an audio D/A converter that we fabricated. The measured result shows that limit-cycle oscillation is prevented and noise-shaping operation is maintained even when the input data is real zero. This D/A converter achieves the S/N+THD of 101 dB.

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2002 Symposium on VLSI Circuits. Digest of Technical Papers (Cat. No.02CH37302)

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