EE 476: Homework 2
- Draw the lowpass circuit required in Lab 2 to filter the PWM output. Specify
R and C to meet the requirements stated in the first paragraph of the Procedure
section of the lab writeup.
- What is the maximum frequency of sine wave you can generate on the Mega32
using the fastest PWM mode? Assume a hardware clock frequency of 16MHz and
that you will change PWM values every PWM cycle.Assume also that you require 16 samples/cycle?
- Why is the PWM frequency set to 7812 for voice playback?
Copyright Cornell University Oct 2005