in this tutorial, I am showing how to make a simple portable amplifier speaker
circuit diagram
things needed
features of pam8403
- Dual-channel stereo output 3 w + 3 w power Class D
- Works with 2.5V-5v power supply
- High amplification efficiency 85%
- can directly drive 4 Ω/8 Ω small speakers
- Good sound quality & no noise
- Can use computer USB power supply directly
- Small Size, 1.85 x 2.11 cm
circuit diagram
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