Low-power constant-coefficient FIR filtering in a hearing aid application

• Published in: 2006 8th International Conference on Solid-State and Integrated Circuit Technology Proceedings pp. 1637 - 1639
• Main Authors: Carbognani, F., Buergin, F., Kraehenbueh, D., Zuercher, F., Felber, N., Kaeslin, H., Fichtner, W.
• Format: Conference Proceeding
• Language: English
• Published: 2006
• Subjects: Auditory system; Computer architecture; Delay; Filtering; Finite impulse response filter; Hearing aids; Laboratories; Microphones; Very large scale integration; Working environment noise

A new constant-coefficient FIR filter architecture is hereby presented, specifically designed for a VLSI adaptive directional microphone for hearing aids. Gate-level simulations targeting a 0.25 mum process point out relevant power savings compared to both the fully time-shared reference design (-80...