Title :
Multirate-multibit sigma-delta modulators
Author :
Colodro, F. ; Torralba, A. ; VegaLeal, A.P. ; Franquelo, L.G.
Author_Institution :
Dept. de Ingenieria Electron., Seville Univ., Spain
Abstract :
A multirate architecture for implementation of SD modulator is proposed in this paper. The performance of the called MM (multirate-multibit) SD modulator is the same that a conventional multibit SD modulator working at the clock rate of the first integrator, but the ADC in the forward path is replaced by an increase at the clock rate of the second integrator. Theoretical and simulation results are presented
Keywords :
circuit feedback; clocks; sigma-delta modulation; SD modulator; clock rate; forward path; multirate architecture; multirate-multibit sigma-delta modulators; Capacitors; Clocks; Delta modulation; Delta-sigma modulation; Digital modulation; Energy consumption; Feedback; Frequency; Sampling methods; Topology;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.856248
