Title :
Systematic approach for scaling coefficients of discrete-time and continuous-time sigma-delta modulators
Author :
Beilleau, N. ; Aboushady, H. ; Louërat, M.M.
Author_Institution :
Lab. LIP6/ASIM, Univ. Paris VI, France
Abstract :
In this paper we present a systematic method to scale the integrators output swings of ΣΔ modulator. It is shown that this scaling method preserves both the noise transfer function and the signal transfer function of the modulator. Examples are given to illustrate the effectiveness of the proposed method to alleviate circuit non-idealities.
Keywords :
sigma-delta modulation; transfer functions; circuit nonidealities; continuous-time sigma-delta modulators; discrete-time sigma-delta modulators; transfer function; Circuit noise; Circuit optimization; Circuit stability; Delta-sigma modulation; Feedback loop; Filters; Noise level; Quantization; System-level design; Transfer functions;
Conference_Titel :
Circuits and Systems, 2003 IEEE 46th Midwest Symposium on
Print_ISBN :
0-7803-8294-3
DOI :
10.1109/MWSCAS.2003.1562261
