DocumentCode
516375
Title
Multi-bit oversampled ΣΔ A/D converters as front-end for CD-players
Author
Naus, P.J.A. ; Dijkmans, E.C.
Author_Institution
Philips Res. Labs., Eindhoven, Netherlands
Volume
1
fYear
1990
fDate
19-21 Sept. 1990
Firstpage
85
Lastpage
88
Abstract
A technique is presented to derive all the control signals needed for focusing and radial tracking in a digital servo system for CD-players, as well as the full-band data, with multi-bit ΣΔ A/D converters. The ΣΔ approach is of great interest because of its suitability to integrate in a VLSI process and no anti-aliasing filter is required due to the oversampling technique.
Keywords
Hi-Fi equipment; sigma-delta modulation; CD players; VLSI process; anti-aliasing filter; control signals; digital servo system; front-end; multibit oversampled sigma-delta A/D converters; radial tracking; Bandwidth; Control systems; Frequency; Lenses; Optical filters; Photodiodes; Sampling methods; Servomechanisms; Signal resolution; Very large scale integration;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1990. ESSCIRC '90. Sixteenth European
Conference_Location
Grenoble
Print_ISBN
2-86332-087-4
Type
conf
Filename
5467987
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