58.2.2. Small Signal Performance of CC Stage

Try these first

1. 1.

   What is the primary function of a Common Collector stage?

   Hint

   Think about the impact on signal connections.

2. 2.

   Define transconductance (g_m).

   Hint

   Consider its formula: I_C / V_T.

3. 3.

   What does the Common Collector stage primarily improve in an amplifier circuit?

   • Bandwidth
   • Voltage Gain
   • Both Bandwidth and Voltage Gain

   Hint

   Think back to what we've discussed regarding the CC stage.

4. 4.

   True or False: The input impedance of a CC stage is lower than that of a CE stage.

   • True
   • False

   Hint

   Recall the values of input impedances discussed.

5. 5.

   A CC amplifier is designed with R_E = 2kΩ and operates with V_CC = 10V. Calculate the maximum expected emitter current if the base voltage = 5V.

   Hint

   Take into account the voltage drop over the base-emitter junction.

6. 6.

   In a given CC circuit, the input capacitance is altered. Explain how this would affect the overall performance of the amplifier, considering bandwidth.

   Hint

   Think about the relationship of frequency response with capacitance.