35.3. Module Plan

Try these first

1. 1.

   Define frequency response.

   Hint

   Think about circuit behavior with different frequencies.

2. 2.

   What is a Bode Plot?

   Hint

   Consider what information such a plot conveys.

3. 3.

   What defines a Bode plot?

   • Shows frequency response
   • Only shows gain
   • Only shows phase

   Hint

   It includes more than one type of information.

4. 4.

   True or False: The cut-off frequency is where the gain is maximally attenuated.

   • True
   • False

   Hint

   Think about the definition of frequencies associated with filtering.

5. 5.

   Given a circuit with R = 1kΩ and C = 1μF, calculate the cut-off frequency.

   Hint

   Remember the relationship between R and C in defining the cut-off.

6. 6.

   Design a high-pass filter using an operational amplifier, specifying component values to set the desired cut-off frequency at 1kHz.

   Hint

   Look at the transfer function to guide your choices.