Title :
A 96 kHz 16 bit dual channel A/D converter LSI for digital audio applications
Author :
Nakamura, M. ; Takahashi, J. ; Mafune, H. ; Hasegawa, Y. ; Sugimoto, Y.
Author_Institution :
Toshiba Corp., Kawasaki, Japan
fDate :
8/1/1989 12:00:00 AM
Abstract :
A low-cost, 96-kHz, 16-bit dual-channel A/D (analog/digital) converter LSI has been developed. Its S/N (signal/noise) ratio is 93 dB, and the THD (total harmonic distortion) is 0.003%. When the converter is used in combination with an antialiasing digital filter, it is possible to reduce the order of the analog filter preceding the A/D converter, which might be harmful to the sound quality. To realize low cost, this LSI is fabricated by a conventional bipolar process, A-NSA (advanced nitride self-aligned process). The discussion covers the features of A-NSA, the A/D conversion principle, the method used to achieve high-speed conversion, the DC offset compensation circuit, and the performance of the converter
Keywords :
analogue-digital conversion; audio equipment; bipolar integrated circuits; digital communication systems; large scale integration; 16 bit; 90 kHz; 93 dB; DC offset compensation circuit; LF; SNR; THD; advanced nitride self-aligned process; analog filter; antialiasing digital filter; audio equipment; digital audio applications; dual channel ADC LSI; high-speed conversion; performance; signal to noise ratio; sound quality; total harmonic distortion; Application specific processors; Audio tapes; Circuits; Costs; Large scale integration; Parasitic capacitance; Resistors; Signal processing; Signal resolution; Video recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
