PicoMite: driving a small speaker

Author Message

Joined: 11/12/2012
Location: United Kingdom
Posts: 8665
Posted: 01:48pm 25 Mar 2023      

I'm not very knowledgeable on analogue electronics. However, the one thing I do know is that audio amplifier modules are likely to be unsuitable. We need amplification of current not voltage. Most audio amplifiers have voltage gains of 20 or even greater whereas we need a gain of not more than 5V/3.3V to avoid clipping and a horrible sound.