DocumentCode
439486
Title
Battery supplied low power analog-digital front-end for audio applications
Author
Klootsema, R. ; Nys, O. ; Vandel, E. ; Aebischer, D. ; Vaucher, P. ; Hautier, O. ; Bratschi, P. ; Bauduin, F. ; Van Oerle, G. ; Jakob, A. ; Menzl, S.
Author_Institution
Xemics SA, Neuchâtel, Switzerland
fYear
2000
fDate
19-21 Sept. 2000
Firstpage
118
Lastpage
121
Abstract
This paper presents the development of a full custom low power, mixed-mode, analog digital front-end chip for audio applications. The front-end is used with a full custom DSP ASIC in a high performance hearing aid system. The front-end implements functions as preamps, low power stereo audio analog to digital converters, remote-control receiver, high PSSR power supplies, time base, voltage reference and a DC-DC converter. The chip has around 170K MOS and is operating down to 0.9V from the battery. The chip is produced using a 0.35 µm, 3.3V CMOS process with quadruple metal, two poly resistors and double poly capacitors.
Keywords
Analog-digital conversion; Application specific integrated circuits; Auditory system; Batteries; CMOS process; DC-DC power converters; Digital signal processing chips; Power supplies; Resistors; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 2000. ESSCIRC '00. Proceedings of the 26rd European
Conference_Location
Stockholm, Sweden
Type
conf
Filename
1471228
Link To Document