how to simulate a sigma-delta modulator with Matlab&#653

how to simulate a sigma-delta modulator with Matlab or other simulation tool in systtem level?

can anyone tell me which took usually is used to design sigma-delta modulator in system level.

thanks !!

Hi this is Gautam here, You can create instantaneous modulator withthe help of SIMULINK library blocks and components.

Only you need to take yourself deep into basics of Sigma-delta modulator, how it performs to realworld signal, what is the order i need for favourable FFT analysis etc.

if you have this much details then you can easily build your model and simulate it by selecting specific solver.