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PAM8403 Super Mini Digital Amplifier Board

US $0.60
Always Free Shipping
  • Model: PAM8403 modules
  • Shipping Weight: 1g
  • 362 Units in Stock


  • Power: DC3.6v5.5V
  • Output power: 3W +3 W (4 in Europe)
  • Signal-to-noise ratio: 90dB
  • Efficiency:> 90%


  • Power positive and negative can not be reversed, the power supply voltage must not exceed 5.5V, two violations could result in damage to the IC.
  • On-chip high-gain buffer, there can be no changes to board any element parameters, does not meet the parameters will result in IC damage.
  • Input line, please try to use shielded lines, you can play anti-jamming, eliminate clutter current sound.
  • Output cmos tube BTL drive way, the negative electrode of the left and right speakers can not be connected together, four lines that connect to a speaker is completely independent, does not allow total access.


  • Special internal output processing circuit, eliminating the conventional LC network, than the LC lower EMI value;
  • At a lower voltage to obtain the maximum power output, the super-power;
  • Built-in standby electronic switch;
  • Built-in high-gain buffer amplifier;
  • Built-in short circuit protection.

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