Title :
A SIMULINK-based approach for fast and precise simulation of switched-capacitor, switched-current and continuous-time ΣΔ modulators
Author :
Moreno-Reina, Javier ; De la Rosa, José M. ; Medeiro, Fernando ; Romay, Rafael ; Del Rio, Rocio ; Pérez-Verdu, Belén ; Rodríguez-Vázquez, Angel
Author_Institution :
Instituto de Microelectron. de Sevilla, IMSE-CNM, Sevilla, Spain
Abstract :
This paper describes how to extend the capabilities of SIMULINK for the time-domain simulation of ΣΔ modulators implemented by using switched-capacitor, switched-current and continuous-time circuits, considering the most important error mechanisms. The behavioural models of these circuits are incorporated into the SIMULINK environment by using C-language S-function blocks, which leads to a drastic saving in the simulation time as compared to previous approaches based on MATLAB functions. The outcome is a complete SIMULINK block library that allows interactive, fast and accurate simulation of an arbitrary ΣΔ topology.
Keywords :
circuit simulation; continuous time systems; sigma-delta modulation; switched capacitor networks; switched current circuits; time-domain analysis; C-language S-function blocks; SIMULINK block library; SIMULINK-based approach; analog-to-digital converters; behavioural models; continuous-time ΣΔ modulators; error mechanisms; simulation time; switched-capacitor ΣΔ modulators; switched-current ΣΔ modulators; time-domain simulation; Central Processing Unit; Circuit simulation; Clocks; Computational modeling; Delta modulation; Equations; Libraries; Mathematical model; Switching circuits; Time domain analysis;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1206167
