Title :
One-bit dithering in delta-sigma modulator-based D/A conversion
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA
Abstract :
The requantization error of delta-sigma modulators used in oversampling digital-analog converters can contain discrete tones that are objectionable in high-fidelity audio applications. The asymptotic second-order statistics and ergodicity of the requantization error are investigated, and it is shown that such tones can be eliminated in a class of delta-sigma modulators with least significant bit dithering
Keywords :
error statistics; sigma-delta modulation; D/A conversion; asymptotic second-order statistics; delta-sigma modulators; ergodicity; high-fidelity audio applications; least significant bit dithering; one-bit dithering; oversampling DAC; requantization error; Delta modulation; Digital systems; Ear; Error analysis; Feedback circuits; Limit-cycles; Matrix converters; Output feedback; Performance analysis; Shift registers;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393971
