Monady
Advanced Member level 4
Hey guys,
I am going to design a 4th-order bandpass delta sigma, with a 4-bit internal ADC. I tried to use schreier toolbox for scaling coefficients, but I don't know how it works. I read its help, but it didn't help me!
To scale coefficients this function needs to be used:
[ABCDs umax]=scaleABCD(ABCD,nlev=2,f=0,xlim=1,ymax=nlev+5,umax,N=1e5)
Assume internal ADC has 4 bits, analog input is 3Vpp, and I need output of each integrator swings between -0.75 to 0.75 (First question: I do not know whether I need to define all of these parameters, or some of them would be defined with this command). Besides, I do not know how to define xlim, and N.
I'd appreciate if someone give me some help!
I am going to design a 4th-order bandpass delta sigma, with a 4-bit internal ADC. I tried to use schreier toolbox for scaling coefficients, but I don't know how it works. I read its help, but it didn't help me!
To scale coefficients this function needs to be used:
[ABCDs umax]=scaleABCD(ABCD,nlev=2,f=0,xlim=1,ymax=nlev+5,umax,N=1e5)
Assume internal ADC has 4 bits, analog input is 3Vpp, and I need output of each integrator swings between -0.75 to 0.75 (First question: I do not know whether I need to define all of these parameters, or some of them would be defined with this command). Besides, I do not know how to define xlim, and N.
I'd appreciate if someone give me some help!