Title :
Dual Threshold Preamplifier and Multi-Channel DSP for Human Factored Digital Hearing Aid Chip
Author :
Kim, Sunyoung ; Lee, Seung Jin ; Cho, Namjun ; Song, Seong-Jun ; Yoo, Hoi-Jun
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
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.
Keywords :
CMOS digital integrated circuits; digital signal processing chips; hearing aids; human factors; integrated circuit design; logic design; low-power electronics; medical computing; preamplifiers; CMOS technology; digital hearing aid chip; digital signal processor design; dual threshold preamplifier; human factors; low-power high-programmability chip; multichannel DSP; power 32 muW; size 0.18 mum; voltage 0.45 V to 0.8 V; voltage 0.9 V; Auditory system; CMOS technology; Digital signal processing; Digital signal processing chips; Digital signal processors; Dynamic range; Human factors; Preamplifiers; Process design; Signal design;
Conference_Titel :
VLSI Circuits, 2007 IEEE Symposium on
Conference_Location :
Kyoto
Print_ISBN :
978-4-900784-05-5
Electronic_ISBN :
978-4-900784-05-5
DOI :
10.1109/VLSIC.2007.4342679
