43.3.2. Effect of Cascading on Frequency Response

Try these first

1. 1.

   What is cascading in amplification?

   Hint

   Think about how multiple stages contribute to overall amplification.

2. 2.

   What happens to the overall gain when two CE amplifiers are cascaded?

   Hint

   Remember how components interact when connected in series.

3. 3.

   What is the primary disadvantage of cascading two CE amplifiers without a buffer?

   • Increased gain
   • Decreased gain
   • Increased bandwidth

   Hint

   Think about how loading affects output signal.

4. 4.

   True or False: Cascading amplifiers always results in increased frequency response bandwidth.

   • True
   • False

   Hint

   Consider what happens when you connect outputs to inputs.

5. 5.

   Calculate the overall gain of two cascaded CE amplifiers with gains of 15 and 3. Assume the loading effect reduces the total gain by 20%.

   Hint

   Multiply the individual gains first, then apply the reduction.

6. 6.

   Describe the effects of adding a buffer with high input resistance but significant output capacitance between two CE amplifiers.

   Hint

   Consider how the capacitive loading interacts with the resistances in the circuit.