Class A Amplifier

Question 1

Calculate appropriate values for RB, RC, RE and Cin in order for the amplifier to have a minimum noise figure

Answer 1

1) calculate IC = (Vt√β) / Rs
2) calculate RC : Vout/Vin = - gm Rc where gm = Ic/Vt
3) calculate RE = (Ve - Vs) / Ic
4) calculate C in :
Cin = 1/[2π fl (Rs + rin)] where rin = Rb || β.gm