This paper describes an integrated digital audio Digital-to-Analog output system. The circuit consists of an 8x digital interpolation filter followed by a 64x oversampled Delta-Sigma modulator. The modulator output controls the reference voltage input to an ultra-linear analog low pass filter. The total D/A system provides a linear phase response.

Authors: Sooch, Nav S.; Scott, Jeffrey W.; Tanaka, T.; Sugimoto, T.; Kubomura, C.
Affiliations: Crystal Semiconductor, Austin, TX ; Asahi Kasei Microsystems, Tokyo, Japan(See document for exact affiliation information.)
AES Convention: 91 (October 1991) Paper Number: 3113
Publication Date: October 1, 1991
Subject: Digital Electronics

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