- Joined Mar 22, 2022
Hello. I am new to electronics and I am trying to complete an LM386 audio amplifier that includes a bandpass filter between 5 and 33 Hz. I know some of the frequencies are outside the frequency range humans can hear. I am testing using a function generator on NI Multisim to get around this. My schematic is attached below. My circuit is filtering anything below 33Hz, and amplifying anything above it. I am having a ton of trouble understanding how to properly filter frequencies in an LM386 as there is very limited information available on the subject. Any help would be appreciated in understanding how to filter.