Design of a Low-power Adaptive LMS Equalizer for Hearing-aid Applications

被引:0
|
作者
da Silva Cerqueira, Joao Pedro [1 ]
Pavlik Haddad, Sandro Augusto [1 ]
机构
[1] Univ Brasilia, Div Elect Engn, Gama Coll Engn, Brasilia, DF, Brazil
来源
2014 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS) | 2014年
关键词
CMOS digital integrated circuits; design methodology; adaptive equalization; least mean square; hearing-aid devices;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
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 mu m 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.
引用
收藏
页码:651 / 654
页数:4
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