An Active 2-D Silicon Cochlea

Author

Hamilton, T.J. ; Jin, C. ; van Schaik, Andre ; Tapson, J.

Author_Institution

Univ. of Sydney, Sydney

Volume

2

Issue

1

fYear

2008

fDate

3/1/2008 12:00:00 AM

Firstpage

30

Lastpage

43

Abstract

In this paper, we present an analog integrated circuit design for an active 2-D cochlea and measurement results from a fabricated chip. The design includes a quality factor control loop that incorporates some of the nonlinear behavior exhibited in the real cochlea. This control loop varies the gain and the frequency selectivity of each cochlear resonator based on the amplitude of the input signal.

Keywords

analogue integrated circuits; auditory evoked potentials; biological fluid dynamics; cellular biophysics; ear; elemental semiconductors; neurophysiology; quality control; silicon; Si; active 2-D silicon cochlea; analog integrated circuit design; biological outer hair cells; cochlear resonator; fluid dynamics; frequency selectivity; input signal amplitude; neuromorphic engineering; nonlinear feedback control; quality factor control loop; Analog integrated circuits; Biological system modeling; Biomembranes; Circuit simulation; Feedback control; Frequency; Low pass filters; Q factor; RLC circuits; Silicon; Log-domain features; neuromnorphic engineering; silicon cochlea;

fLanguage

English

Journal_Title

Biomedical Circuits and Systems, IEEE Transactions on

Publisher

ieee

ISSN

1932-4545

Type

jour

DOI

10.1109/TBCAS.2008.921602

Filename

4489970