behavioral simulation of sigma delta modulator

[rama kiran]

i simulated sigma-delta modulator in matlab.i am getting same SNR for single stage and cascade stage.can anybody tell me,what may be the problem.i am trying in SD toolbox.

 

[shaq]

Hey rama,
How about sharing your simulink model and matlb code in order to easily help you?

 

[ehsanica]

i simulated sigma-delta modulator in matlab.i am getting same SNR for single stage and cascade stage.can anybody tell me,what may be the problem.i am trying in SD toolbox.

why you dont try this toolbox? hope it can help you.

Description:
The Delta-Sigma Toolbox includes nearly 100 functions which support NTF synthesis, modulator simulation (from an NTF or a structure), realization, dynamic range scaling, SNR estimation and more. The toolbox is well-documented via the accompanying DSToolbox.pdf manual.

For further information regarding the Toolbox and Delta-Sigma modulators in general consider purchasing "Understanding Delta-Sigma Data Converters" by Schreier and Temes. This book (ISBN 0-471-46585-2) is now available.

https://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=19

 

[ana192712]

thanks!!!

 

[daloveme]

this is SDtoolbox2 for behavioral simulation of sigma delta modulator.
use this.

**broken link removed**