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+// Example 7.5

+clc;

+clear;

+close;

+// Given data

+format('v',5);

+alpha= 1.414;// passband

+C= 0.01*10^-6;// in F (assume)

+fc= 1*10^3;// in Hz

+dc_gain= 6;

+R= 1/(2*%pi*C*fc);// in Ω

+R= R*10^-3;// in kΩ

+disp("The value of R is : "+string(R)+" kΩ (standard value 15 kΩ)");

+R= 15;// in kΩ

+Af= 3-alpha;// and Af= 1+Rf/R1 or

+// Rf= (Af-1)*R1    (i)

+// 2*R= Rf || R1, hence from (i)

+R1= 2*R*Af/(Af-1);// in kΩ

+disp("The value of R1 is : "+string(R1)+" kΩ (standard value 82 kΩ)");

+R1= 82;// in kΩ

+Rf= (Af-1)*R1;// in kΩ

+disp("The value of Rf is : "+string(Rf)+" kΩ (standard value 47 kΩ)");

+Aamp= dc_gain/Af;

+disp("The value of Aamp is : "+string(Aamp));