I'm doing a simply audio frequency power amplifier circuit on breadboard. The input is the audio output of laptop or smartphone. I need to bring the input into the circuit:
I have this thing, it has 5 pins:
I'm going to use it to connect the audio to the breadboard. However, I don't know the roles of these 5 pins. After searching for it, I found out it is called Jack Audio 3.5mm PJ 215 (PJ 325) and found this datasheet image:
So its pin out diagram is:
I don't even know what does this image describe. When searching, I have read something like there is one pin connect to left channel and one to right channel of audio, but it's not clear. Can you explain to me about this jack audio: Which pin do what thing, and how should I connect it to my circuit?