mas.500
problem set #3

problem 1:  design (do not build) an amplifier with a passband of 20Hz to 20kHz, a gain of 20, and biased to midrail.  it should have in input impedance of 10kohm.  draw up the schematic and label all the parts.

problem 2:  you will recieve a quad op-amp for your kit (tlv2374).  use this part to build a relaxation oscillator at a rate of approximately 10Hz.  place an LED at the output so the frequency is visible.  draw and label a schematic of what you built.

problem 3:  modify your relaxation oscillator so that the frequency of oscillation is controlled via your CDS photocell.


please bring in your schematics and photocell circuit to class.