Prev: .mdl to m-file
Next: Help converting code to MEX file
From: Prashant Sandhi on 15 Feb 2010 06:45
Dear Freinds,

I have these data and I would like to know if ADC that is present in the simulink 'Idealized ADC quantizer' is good enough to use.

Analog input Vin=0.144 volts (DC signal)
n=12 bit = 2^12=4096

Basic formula of ADC is = (2^n * Vin)/Vmax
Reference voltage Vmax=10volts (This Vmax is give when I double click the 'Idealized ADC quantizer')

The out put I get is '59'. I would like to understand what is the Digital value represents as. I dont understand how I can substitute Vin value after Analog-to-Digital conversion which is '59'. How can I have an eqivalent value obtained 59 = 0.144 volts into this below equation. I am not suppose to substitute 0.144 below but I heard I have to make signal processing so as to obtain its equivalent value and substitute in this below formula, but how?.

y = ((0.297/(Vin+Vin)-1)*(10000+1000000);

Any explanation will be appriciated.

Sandhi
 | 
Pages: 1
Prev: .mdl to m-file
Next: Help converting code to MEX file