PicoMite: driving a small speaker

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Joined: 25/06/2022
Location: United Kingdom
Posts: 1692
Posted: 02:14pm 25 Mar 2023      

  matherp said  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.

many amps are bridged like car amps so 4 times the power for same supply.