about 1-order noise shaping ...

[super]

Dear all:
I according book using simulink to build 1-order
delta-sigma modulator, but the result is not correct,
It's should be have continuous pulse ,but from result only one pulse .
what's happen ??

Thanks .

 

[ofish]

why do you add const block inside the loop?

 

[super]

which constant block ??
constant 2 is input signal ,
constant 3 is noise .

 

[jerryhuang]

hi super,i am leraning sigma delta too,it seems u don't have the clock on the integer delay block,and why do u know the noise ican model as constant 1 ,i think it is wrong,when u get the right simulation,please post on the forum.thanks

 

[Ansunamu]

It's overflow

 

[jerryhuang]

Ansunamu
would you descrip it cleraly?thanks