DocumentCode
3073824
Title
A 85 /spl mu/W asynchronous filter-bank for a digital hearing aid
Author
Nielsen, F. ; Sparso, J.
Author_Institution
Oticon Inc., Hellerup, Denmark
fYear
1998
fDate
5-7 Feb. 1998
Firstpage
108
Lastpage
109
Abstract
This asynchronous re-implementation of a 7-band interpolated FIR (IFIR) filter bank is part of the DigiFocus digital hearing aid manufactured by Oticon Inc. When processing typical data (less than 50 dB sound pressure), the power consumption of the asynchronous chip is 85 /spl mu/W-more than 5 times less than the existing synchronous design.
Keywords
FIR filters; asynchronous circuits; digital filters; hearing aids; interpolation; 85 muW; DigiFocus digital hearing aid; asynchronous filter-bank; interpolated FIR filter; power consumption; sound pressure; Auditory system; Circuits; Clocks; Delay; Digital filters; Energy consumption; Filter bank; Latches; Logic; Read-write memory;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1998. Digest of Technical Papers. 1998 IEEE International
Conference_Location
San Francisco, CA, USA
ISSN
0193-6530
Print_ISBN
0-7803-4344-1
Type
conf
DOI
10.1109/ISSCC.1998.672393
Filename
672393
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