Title :
Design of a 20 bit sigma-delta A/D-converter for audio applications
Author_Institution :
Lehrstuhl fuer Nachrichtentech., Erlangen-Nurnberg Univ., West Germany
Abstract :
A design procedure for sigma-delta analog/digital (A/D) converters based on a linear model is presented. The procedure is applicable to general structures with time-continuous loop filters. The method includes some design parameters that are important in a practical implementation, like loop delay, maximum loop gain, stability margins, and maximum noise power in the loop. A hardware implementation of a converter with 20 bit resolution and 48 kHz output sampling rate is described
Keywords :
analogue-digital conversion; audio equipment; 48 kHz; ADC; audio applications; design procedure; hardware implementation; linear model; loop delay; maximum loop gain; maximum noise power; output sampling rate; sigma-delta A/D-converter; stability margins; time-continuous loop filters; Clocks; Delay effects; Delta-sigma modulation; Digital filters; Feedback loop; Hardware; Quantization; Sampling methods; Signal resolution; Transfer functions;
Conference_Titel :
Circuits and Systems, 1990., IEEE International Symposium on
Conference_Location :
New Orleans, LA
DOI :
10.1109/ISCAS.1990.112589
