33.5.8. High Frequency Considerations

Try these first

1. 1.

   What is the Miller effect?

   Hint

   Consider feedback and its impact on capacitance.

2. 2.

   Define output conductance.

   Hint

   Think about load driving capabilities.

3. 3.

   What happens to voltage gain at high frequencies due to parasitic capacitances?

   • Increase
   • Decrease
   • No effect

   Hint

   Think about what capacitance does to signal efficiency.

4. 4.

   True or False: The Miller effect reduces the impact of gate-to-source capacitance.

   • True
   • False

   Hint

   Consider how feedback affects capacitance.

5. 5.

   Design a common source amplifier for a 2.4GHz frequency application. Include considerations for parasitic capacitances and suggest appropriate component values.

   Hint

   Focus on minimizing parasitics while ensuring effective amplification.

6. 6.

   Evaluate how a sudden increase in parasitic capacitances affects amplifier stability. Discuss the expected behaviors and countermeasures.

   Hint

   Consider feedback mechanisms and their corrective capabilities.