Amp-SSM2211M

Small amplifier module based on the SSM2211 IC from Analog Devices.
Connect power, audio, and a speaker and you are good to go.
A worthy replacement for the ubiquitous LM386.

Full details including tests, schematic description, and more can be found at: https://www.protoriam.com/ssm2211m/index.html

We like the SSM2211 because:
Very low background noise
Low and single supply power requirement
No output filters or decoupling needed
Liner Class-AB output
Good headroom (400mV)
Gain setting similar to Op Amp
Small, yet easy to hand solder, SO8 package.
Up to 1.5W with decent THDN
Good datasheet with examples