simon0123
Newbie level 6
HI
I am designing a second order low pass delta sigma modulator. I want to calculate the real (finite gain) transfer function of the integrators which are noninverting and delaying. I have searched on the internet and found the transfer function is 1/[1-(1-1/A)z^-1]. However, I can't derive it. I want to know how the expression is derived. Please help me. Thanks
I am designing a second order low pass delta sigma modulator. I want to calculate the real (finite gain) transfer function of the integrators which are noninverting and delaying. I have searched on the internet and found the transfer function is 1/[1-(1-1/A)z^-1]. However, I can't derive it. I want to know how the expression is derived. Please help me. Thanks