#### Alan_yi

##### Newbie level 6

**sigma delta matlab**

As the title

I will start the modeling work on several topogies of the sigma-delta modulator in order to compare the performance of the single loop, cascaded, lesilie-sign structure.And all of them will be realized in continuous-time domain.

At first, I want to use matlab to set up these models, but it seems that matlab is not suitable for the continuous time SD.Most people use spice to do the job.

Is there any exsiting continous time SD model that could be used as a reference?I am wandering why matlab can't do the job and how to start the continous-time SD modeling work(any good paper on it?).Thx!