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Dual Threshold Preamplifier and Multi-Channel DSP for Human Factored Digital Hearing Aid Chip

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5 Author(s)
Sunyoung Kim ; Korea Adv. Inst. of Sci. & Technol., Daejeon ; Seung Jin Lee ; Namjun Cho ; Seong-Jun Song
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The low-power, high-programmability digital hearing aid chip with consideration of human factors is implemented. To achieve the human factored design with low-power consumption, the dual threshold preamplifier and the multi-channel digital signal processor (DSP) are designed. The dynamic range of the dual threshold preamplifier exists from 0.45-V to 0.8-V and dissipates 32-muW from a single 0.9-V supply. The core area of the preamplifier and the DSP are 0.057-mm2 and 0.5-mm2 respectively in a 0.18-mum CMOS technology.

Published in:

VLSI Circuits, 2007 IEEE Symposium on

Date of Conference:

14-16 June 2007