ELEC 470, Spring 2004
Prof. Rich Kozick
Date Assigned: Thursday, January 29, 2004
Date Due: Tuesday, Februrary 3, 2004
Continue studying Chapter 2 on signals and Chapter 3 on
linear systems in the Lathi text.
What are reasonable values for R and C if the "envelope
detector" circuit shown below is used to demodulate a commercial
AM radio station? The carrier frequencies for AM radio stations
range from approximately 550 kHz to 1.5 MHz.
The "message" signals in AM radio have frequencies less
than 5 kHz.
Explain your reasoning.
[CIRCUIT DIAGRAM OMITTED IN HTML VERSION,
BUT IT IS
AVAILABLE ON PAGE 168 OF THE LATHI TEXT.]