47.3.7. Upper Cutoff Frequency

Try these first

1. 1.

   What is the upper cutoff frequency?

   Hint

   Think about the performance of the amplifier.

2. 2.

   Define load capacitance.

   Hint

   Consider how it affects the bandwidth.

3. 3.

   What determines the upper cutoff frequency?

   • Output Power
   • Load Capacitance
   • Load Resistance

   Hint

   Think about what affects bandwidth.

4. 4.

   The upper cutoff frequency decreases when load capacitance increases.

   • True
   • False

   Hint

   Remember the frequency response and how capacitance plays a role.

5. 5.

   Given an output resistance of 220 ohms and a load capacitance of 200 pF, calculate the upper cutoff frequency. How does the addition of a 50 pF parasitic capacitance change your answer?

   Hint

   Consider both contributions to capacitance.

6. 6.

   Design a circuit that optimizes frequency response for a given range, focusing specifically on impedance and load capacitance configurations.

   Hint

   Remember to balance between gain and bandwidth.