Title :
Quantiser gain in Nth-order ΣΔ modulator linear models: its determination based on constant output power criterion
Author :
Maguire, Paul T. ; Huang, Qiuting
Author_Institution :
Sch. of Inf. Syst., East Anglia Univ., Norwich, UK
fDate :
30 May-2 Jun 1994
Abstract :
This paper presents a straightforward linear model applicable to two-level sigma-delta (ΣΔ) modulators of any order. In this model, the gain of the quantiser is determined from an observation that the modulator´s total output power is constant. Comparisons to non-linear simulations and measurements show this model to be superior to the commonly cited unity gain quantiser model
Keywords :
circuit analysis computing; digital simulation; integrated circuit noise; quantisation (signal); sigma-delta modulation; Nth-order ΣΔ modulator linear models; constant output power criterion; nonlinear simulations; quantiser gain; two-level sigma-delta modulators; Delta modulation; Filters; Frequency; Integrated circuit modeling; Integrated circuit noise; Noise figure; Noise shaping; Power generation; Predictive models; Quantization;
Conference_Titel :
Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-1915-X
DOI :
10.1109/ISCAS.1994.409376
