Title :
Segmented mismatch-shaping D/A conversion
Author :
Fishov, Asaf ; Siragusa, Eric ; Welz, Jared ; Fogleman, Eric ; Galton, Ian
Author_Institution :
California Univ., San Diego, La Jolla, CA, USA
Abstract :
Tree-structured mismatch-shaping DACs have recently been used as enabling components in state-of-the-art ΔΣ ADCs to suppress signal-band error arising from mismatches among fabricated DAC components. This paper presents a segmented version of the encoder with significantly reduced hardware complexity. The segmented architecture follows from a result that any digital encoder for which the output values sum to the input value can be implemented using a tree-structured encoder.
Keywords :
audio coding; digital-analogue conversion; integrated circuit noise; sigma-delta modulation; digital encoder; fabricated DAC components; hardware complexity; input value; output values; segmented mismatch-shaping D/A conversion; signal-band error; tree-structured mismatch-shaping DACs; Bandwidth; Circuit topology; Digital filters; Digital modulation; Dynamic range; Encoding; Hardware; Logic gates; Noise shaping; Tree data structures;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010547
