Hi guys,
I have some question
from the link shown below.
https://people.ece.cornell.edu/land/courses/ece4760/FinalProjects/s2005/ik48_ua22/mysite/sw_hw.htm
Q1) first order RC high pass filter and it is built by a 1uF capacitor (C1) and a 1kΩ resister R2 in series.
How can the High pass filter connected in series?
Q2) why need 3 opamp can't i just use one opamp increase the value for the resister for the gain?
I want to built and microphone amplififier circuit connect to MCU. I doing a sound recorder project.
Thank
I have some question
from the link shown below.
https://people.ece.cornell.edu/land/courses/ece4760/FinalProjects/s2005/ik48_ua22/mysite/sw_hw.htm
Q1) first order RC high pass filter and it is built by a 1uF capacitor (C1) and a 1kΩ resister R2 in series.
How can the High pass filter connected in series?
Q2) why need 3 opamp can't i just use one opamp increase the value for the resister for the gain?
I want to built and microphone amplififier circuit connect to MCU. I doing a sound recorder project.
Thank