助听器低功耗自适应LMS均衡器的设计

IEEE Biomedical Circuits and Systems Conference : healthcare technology : [proceedings]. IEEE Biomedical Circuits and Systems Conference Pub Date : 2014-12-11 DOI:10.1109/BioCAS.2014.6981810

J. P. Cerqueira, S. Haddad

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引用次数: 2

摘要

本文介绍了一种用于助听器的低功耗自适应最小均方均衡器的设计过程和部分结果。通过使用在阈值以上区域工作的全串行(FS)架构来实现能源效率。原型芯片已在标准CMOS 0.18µm工艺中进行制造。比较行为模型和功能模型的部分结果表明，对于相同的输入和通道特性，最大误差为2.54%。通过选择优先考虑能耗而不是速度的架构，每个样本的能量耗散可能达到约140 nJ。

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Design of a low-power adaptive LMS equalizer for hearing-aid applications

This paper presents the design process and partial results of a low-power adaptive least mean squares (LMS) equalizer for hearing-aid applications. Energy efficiency is achieved by using a fully-serial (FS) architecture working in the above-threshold region. Prototype chips have been sent to manufacture in a standard CMOS 0.18 μm process. Partial results, comparing the behavioral and functional models, have shown a maximum error of 2.54% for the same inputs and channel characteristics. By choosing an architecture in which the priority is energy consumption rather than speed, it was possible to achieve about 140 nJ energy dissipation per sample.

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IEEE Biomedical Circuits and Systems Conference : healthcare technology : [proceedings]. IEEE Biomedical Circuits and Systems Conference

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