Q1) For the identical stages RC coupled amplifier cct. below, where re=28.480" a. Determine the value of voltage gain for each stage and overall voltage gain for cct. b. Determine fis, fic, and E for each stage. c. Determine the low cutoff frequency for the overall cct. e. Sketch approximately the low frequency response for the amplifier overall 0.47 14 V 5pF C-12 pF 8 pF C 40 pF 8 pF C C-8 p 5pF C = 8pF C 12pF 40 pF C-8 p 5.6 kQ 5.6 k 5.6 kQ 68 kn 0.47 F Vol 0.47 F Vo2 0.47 F Vo B-120 B-120 B-120 8.7k 8.7k 8.7km 10 kn 1.2 kn 20µF 1.2 km 20µF 1.2 km 20µF Q2) For the identical stages RC coupled amplifier circuit demonstrated in Q1 above, where Cwi=5 pF, Cwo = 8 pF, Cbc = 12pF, Cbe = 40 pF, and Cce = 8 pF a. Determine fand fo for each stage b. Determine the high cutoff frequency for the overall cct. c. Determine the unity-gain frequency for the circuit overall. d. Sketch approximately the high frequency response for the amplifier overall

2. The parameters of the transistor as shown in the figure below are ß = 100 and VA = 100V. a. Find the dc voltages at the base and emitter terminals. b. Find Rc such that VCEQ = 3.5V. c. Assuming Cc and CE act as short circuits, determine the small-signal voltage gain Av = Vo/Vs. d. Repeat part (c) if a 5000 source resistor is in series with the vs signal source. V+ = +5 V Rs = 100 £2 www Us Cc RB = 10 ΚΩ I= Iausmi 0.35 mA www RC -000 V=-5 V CE