nish_2511
Newbie level 1
Hi, I am working on design of single loop sigma delta modulator and for that I am using 2nd order CIFB architecture. My question is do we need to have gain stage before delayed integrator in this structure? I did put two gain stage b4 each of the integrator because I was not getting proper output at each integrator output(which according to my design spec should be around +/-1) I am using OSR =256 and quantizer level 2. I am not able to understand how does gain stage before integrator affects o/p of it? Is it really required?pls help me
