For the cascade amplifier circuit shown in Fig (1): a) What are the functions of the capacitors C1, C2 and C3? And what are the functions of the capacitors Cs and CE? b) What are the functions of the resistors RD and Rc? c) Draw the DC biasing circuits for each stage. d) Find IDQ, VGSQ, Vos and gm for the JFET stage (you may use either mathematical or graphical methods). e) Calculate IB, IC, IE and Vc for the BJT circuit. f) Calculate the value of re for the BJT transistor. g) Draw the ac equivalent circuits of the multistage amplifier. h) Determine the voltage gain of the JFET circuit with the BJT amplifier as a load. i) Determine the input impedance Zi and output impedance Zo of the overall amplifier circuit assuming that ra = 50 kQ2 and ro = 30 kQ. j) Calculate the output voltage Vo if the input source voltage Vs is 2.0 mV with 500 source resistance (Rsig). k) Find the overall voltage gain Avs if the output (V.) of the second stage is connected to a load resistance of RL = 1 KQ. V₁ RD 2ΚΩ +12V Rc 91ΚΩ 4.7 ΚΩ C₂ 0.1 μF 10μF 0.05 µF H Dss = 6 mA Vp=-3 V HE ẞ=150 15ΜΩ 12kQ 3900 100 μF 1ΚΩ 100 µF CS CE Figure (1) JFET, BJT cascade amplifier circuit