EE 476: Homework 2
- For the simple DAC circuit shown in Lab 2, each port output pin can be
at Vcc=5 volts or at zero volts. Do this by hand. Solutions using any computer
program will be graded as a zero.
- Show that if the port output is 0x80 that the voltage going to the oscilloscope
equals 2.5 volts.
- Show that if the port output is 0x40 that the voltage going to the oscilloscope
equals 1.25 volts.
Show that the 16 table values given for a sine wave are correct to 8 bits.
Copyright Cornell University Jan 2004