A DSP-based hearing instrument IC

被引：72

作者：

Neuteboom, H ^{[1
]}

Kup, BMJ ^{[1
]}

Janssens, M ^{[1
]}

机构：

[1] PHILIPS CONSUMER ELECT,INT TECHNOL CTR LEUVEN,ASA LABS,B-3001 LOUVAIN,BELGIUM

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 1997年 / 32卷 / 11期

关键词：

analog-digital conversion; CMOS integrated circuits; DC-DC power conversion; digital-analog conversion; digital signal professors; low power; low voltage; sigma-delta modulation;

D O I：

10.1109/4.641702

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a digital signal processing IC, including AD/DA converters, for one-chip hearing instruments, An on-chip infrared remote control receiver is used to load a program into the digital signal processor (DSP). The complete IC consumes 2 mW from a single cell battery and operates with supply voltages down to 0.9 V, The oversampling A/D and D/A converters show a dynamic range of 77 and 93 dBA, respectively. Only a few external capacitors are needed. The chip area is 35 mm(2) in a low-threshold 0.8-mu m CMOS process.

引用

页码：1790 / 1806

页数：17

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