(Solved): Question: (BJT Amplifier) Consider the given BJT amplifier circuit and solve the following questi ...

Question: (BJT Amplifier) Consider the given BJT amplifier circuit and solve the following questions by showing all the solution steps clearly. (Use appropriate component models according to the given parameters.). a) (20p) Draw the small signal model of the amplifier circuit (do NOT neglect the Early effect). b) (20p) Derive input impedance Rin, output impedance Rout and voltage gain Av of the amplifier. c) (40p) We would like to design it so that it has an input impedance Rin $=10\mathrm{K}$, output impedance Rout $=20\mathrm{K}$. Calculate $I_c,R_c,r_0,A_v.(?=100$, ${\mathrm{V}}_{\mathrm{A}}=15.6\mathrm{V})$ d) (20p) If we connect a microphone $\left(R_m=6K\right)$ to the amplifier input and a speaker ( $RL=5K)$ to the amplifier output, calculate the overall gain of the system $\left(A=V_L/V_m\right)$ Please begin your solution below this line: