8.2. Common Signal Processing Techniques in Mixed Signal Systems

Try these first

1. 1.

   List three types of analog filters.

   Hint

   Remember, these filters distinguish between frequency ranges.

2. 2.

   What is the main purpose of modulation?

   Hint

   Focus on the relationship between data and the carrier signal.

3. 3.

   What is the primary function of a low-pass filter?

   • A. Allow high frequencies to pass
   • B. Allow low frequencies to pass
   • C. Possible complementation
   • D. None of the above

   Hint

   Think about the frequency ranges that each filter targets.

4. 4.

   True or False: Demodulation is the process of changing an analog signal into a digital one.

   • True
   • False

   Hint

   Recall the definitions of modulation and demodulation.

5. 5.

   Design a filter circuit using an op-amp that acts as a low-pass filter with a cutoff frequency of 1kHz. Explain your design choices.

   Hint

   Use the formula for cutoff frequency to guide your component selection.

6. 6.

   Evaluate the pros and cons of using DSP versus analog filtering in signal processing.

   Hint

   Focus on application-specific advantages of both methods.