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//Chapter 16_Bipolar and MOS Digital Gate Circuits
//Caption : Noise Margin
//Example 16.2: An RTL gate has the worst case voltages listed below:
// Temp(degree C) Voh(V) Vih(V) Vil(V) Vol(V)
// -55 1.014 1.01 0.718 0.710
// 25 0.844 0.815 0.565 0.300
// 125 0.673 0.67 0.325 0.320
//Calculte the worst case NMl and NMh noise margins.
//Solution:
clear;
clc;
T=[-55;25;125];// temperatures in degree celsius given in table
for j=1:3,
if j==1 then
disp('Noise margins for T=-55 degree celsius are:')
NMl=0.718-0.710;// since NMl=Vil-Vol
NMh=1.014-1.01;// since NMh=Vih-Voh
disp('Volt',NMl,'lower limit of noise margin at -55 degree celsius is:')
disp('volt',NMh,'upper limit of noise limit at -55 degree celsius is:')
elseif j==2 then
disp('Noise margin for T=25 degree celsius are:')
NMl=0.565-0.300;
NMh=0.844-0.815;
disp('Volt',NMl,'lower limit of noise margin at 25 degree celsius is:')
disp('Volt',NMh,'upper limit of noise margin at 25 degree celsius is:')
elseif j==3 then
disp('Noise margin for T=125 degree celsius are:')
NMl=0.325-0.320;
NMh=0.673-0.670;
disp('Volt',NMl,'lower limit of noise margin at 125 degree celsius is:')
disp('Volt',NMh,'uppwr limit of noise margin at 125 degree celsius is:')
end
end
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