Title :
A stereo 97 dB SNR audio sigma-delta ADC
Author :
Ritoniemi, T. ; Pajarre, E. ; Ingalsuo, S. ; Husu, T. ; Eerola, V. ; Saramaki, T.
Author_Institution :
VLSI Solution Oy, Tampere, Finland
Abstract :
High-performance VLSI implementations of sigma-delta audio ADCs at present use separate dies for digital and analog parts. In the circuit presented in this paper, the interference in the analog part is negligible, enabling use of the same die for the entire converter. The converter has a 44.1 kHz sampling rate, oversampling ratio of 64, and the passband edge at 20 kHz.<>
Keywords :
Hi-Fi equipment; VLSI; analogue-digital conversion; audio signals; audio systems; delta modulation; signal processing equipment; 20 kHz; 44.1 kHz; SNR; VLSI; analog digital converter; die; interference; oversampling ratio; passband edge; sampling rate; stereo audio sigma-delta ADC; Capacitors; Circuit noise; Delta-sigma modulation; Finite impulse response filter; Frequency; Interference; Noise cancellation; Passband; Sampling methods; Very large scale integration;
Conference_Titel :
Solid-State Circuits Conference, 1994. Digest of Technical Papers. 41st ISSCC., 1994 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-1844-7
DOI :
10.1109/ISSCC.1994.344671
