Low voltage SC TDM correlator for the extraction of time delay

Author

Grech, I. ; Micallef, J. ; Vladimirova, T.

Author_Institution

Dept. of Microelectron., Malta Univ., Msida, Malta

Volume

1

fYear

2000

fDate

2000

Firstpage

112

Abstract

This paper proposes a novel technique for the computation of interaural time delay cues which are useful for sound localization. A switched capacitor implementation is used in order to achieve good accuracy. Furthermore, to reduce the area requirement and minimize the accumulation of offset and noise, a time-division multiplexed approach has been used requiring just three fast op amps, one analogue multiplier and a comparator. These blocks have been optimized to operate at a supply voltage of 1.8 V

Keywords

analogue processing circuits; audio signal processing; correlators; delays; low-power electronics; switched capacitor networks; time division multiplexing; 1.8 V; analogue multiplier; audio signal; comparator; interaural time delay cue; low voltage SC TDM correlator; opamp; sound localization; switched capacitor circuit; time division multiplexing; Acoustic noise; Acoustical engineering; Capacitors; Correlators; Data mining; Delay effects; Low voltage; Microelectronics; Space technology; Time division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2000. ICECS 2000. The 7th IEEE International Conference on

Conference_Location

Jounieh

Print_ISBN

0-7803-6542-9

Type

conf

DOI

10.1109/ICECS.2000.911497

Filename

911497