Title :
A 3-V 0.5-μm CMOS A/D audio processor for a microphone array
Author :
Balestro, F. ; Fraisse, V. ; Martel, G. ; Morche, D. ; Senn, P. ; Tourneur, G. Le ; Mahieux, Y.
Author_Institution :
France Telecom, CNET, Grenoble, France
fDate :
7/1/1997 12:00:00 AM
Abstract :
A 0.5-μm 3-V CMOS mixed-mode audio processor is presented. It is mainly composed of 11 low-noise input channels and a dedicated digital audio processor. Analog input signals are provided through an 11-microphone array. The chip size is about 50 mm2, and the power dissipation is less than 100 mW. This circuit is dedicated to multimedia applications
Keywords :
CMOS integrated circuits; acoustic signal processing; acoustic transducer arrays; microphones; mixed analogue-digital integrated circuits; 0.5 micron; 100 mW; 3 V; CMOS mixed-mode audio processor; microphone array; multimedia applications; CMOS process; Finite impulse response filter; Frequency; Microphone arrays; Sensor phenomena and characterization; Transfer functions;
Journal_Title :
Solid-State Circuits, IEEE Journal of
