How about a schematic using an LM386? I looked at the specs on it a few minutes ago.
Also, what is the footprint on that amp you provided?
I need something small. The one I just finished fits inside a flashlight/lantern that ran on a 6V lantern battery.
The PCB and 3 AA batteries fit inside the old battery cavity and I mounted a speaker where the bulb and lense housing were before. The original on/off switch for the light powers the board, and I mounted the mp3 player externally with velcro.
It will need to be louder.
I either need a more powerful unit, or I need to up the voltage to the TDA2822. I think I damaged the first IC trying to solder a connection to the input. I believe I overheated it. After that I started asking questions here.
Do you think I can safely up the voltage to 6V from 4.5 without damaging anything currently being used? The 2822 is an 8 pin dual rail configured in a bridged mode.
This will allow me to use the lantern battery and have a much longer service life.
Kyle