Title :
20 bit A-to-D & D-to-A converting systems for digital audio
Author :
Tani, Yasunori ; Nuriya, Kozo ; Seki, Nobuyuki ; Kaneaki, Tetsuhiko
Author_Institution :
Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
fDate :
8/1/1989 12:00:00 AM
Abstract :
Analog-to-digital (A-to-D) and digital-to-analog (D-to-A) conversion systems with 20-bit resolution are described. The A-to-D conversion system has two 16-bit A-to-D converters, and the system matches them completely digitally. The D-to-A conversion system consists of a digital filter, a noise shaper, and an 18-bit D-to-A converter. Both systems use existing devices, therefore their resolution can be improved with the advance of device technology. The A-to-D system has a 120-dB signal-to-noise ratio, an important factor for audio equipment
Keywords :
analogue-digital conversion; audio systems; digital communication systems; digital-analogue conversion; 120 dB; 16 bit; 20 bit; ADC; DAC; audio equipment; digital audio; digital filter; noise shaper; signal-to-noise ratio; Analog-digital conversion; Audio-visual systems; Communication industry; Costs; Digital filters; Laboratories; Noise shaping; Sampling methods; Signal resolution; Signal to noise ratio;
Journal_Title :
Consumer Electronics, IEEE Transactions on
