3.1. Overview

Try these first

1. 1.

   What does an ADC do?

   Hint

   Think about what happens to sound waves when recorded.

2. 2.

   What does a DAC do?

   Hint

   Consider how sound is played from a device.

3. 3.

   What is the main function of an ADC?

   • To convert digital to analog
   • To convert analog to digital
   • To amplify signals

   Hint

   Think about the first step in turning sound into digital data.

4. 4.

   True or False: DACs can only be used in audio applications.

   • True
   • False

   Hint

   Consider other areas where digital signals might need conversion.

5. 5.

   Design an example of a mixed signal system for a smartphone that includes ADC, DAC, and a mixed signal processor. Explain the flow of signals.

   Hint

   Consider how your voice travels through various stages inside the device.

6. 6.

   Explain how noise can affect the performance of mixed signal systems and suggest solutions for better isolation.

   Hint

   Think about scenarios where signals might interfere with each other.