I have made this low pass filter with help for Texas Instrument pdf .I have made this on Circuit Simulator ' Proteus'.I kept cut-off about 330 Hz.Sin wave generator is in input .
When I kept frequency above 350 Hz still it is giving me a beep..
I cant understand what kind of thing is happening.?
I am beginner.
I used LM741 OP-AMP .Capacitor I used .1uF(down) and .2 uF(up).And see below for more informations.
When I kept frequency above 350 Hz still it is giving me a beep..
I cant understand what kind of thing is happening.?
I am beginner.
I used LM741 OP-AMP .Capacitor I used .1uF(down) and .2 uF(up).And see below for more informations.