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Convention Paper

C-8 A 117-dB D-Range Current-Mode Multi-Bit Audio DAC for PCM and DSD Audio Playback

Authors: Nakao, Shige; Terasawa, Hitoshi; Aoyagi, Fumitaka; Terada, Norio; Hamasaki, Toshi

AES Convention 109 · Paper 5190 · September 2000

Abstract

A current-mode multibit DAC has been designed to meet the needs of high-end audio with a dynamic range of 117 dB and THD+N of 0.0004%. The device supports the 24-bit PCM audio format at sample rates ranging from 16 kHz to 192 kHz, which allows DVD-Audio playback. The architecture implemented in the device differs significantly from previous multibit sigma-delta modulators. The achievements of the new architecture compared to previous proposals are a significant improvement of level linearity of signal-to-noise ratio (SNR) and idle tones, which arise from element mismatching. This circuit-block configuration also provides FIR filtering for DSD (SACD) input data.:

Details

Published in
AES Convention 109
AES Convention
109
Paper number
5190
Publication date
September 6, 2000
Session subject
Digital Signal Processing
Affiliation
Burr-Brown Japan Ltd., Kanagawa, Japan (See document for exact affiliation information.)
Type
Convention Paper

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