42.2.4. Practical Circuit Example

Try these first

1. 1.

   What is the primary role of frequency response in amplifiers?

   Hint

   Consider why amplifier performance would be different across frequencies.

2. 2.

   Define mid-frequency gain.

   Hint

   Think about how amplifiers perform within a particular range.

3. 3.

   What does frequency response tell us about a circuit?

   • True
   • False

   Hint

   Consider why this is important for circuit design.

4. 4.

   The lower cutoff frequency is determined by the first pole.

   • True
   • False

   Hint

   Think about how poles relate to frequency in circuits.

5. 5.

   Given an amplifier with R_in = 1.5 kΩ, C_in = 10 pF, and a voltage gain of 150, calculate the new input capacitance.

   Hint

   Use the initial capacitance to find the increased value due to gain.

6. 6.

   How does changing R_s from 650 Ω to 1 kΩ affect the lower cutoff frequency?

   Hint

   Analyze the RC time constant changes and their effects.