Audio Amplifier PAM8403 2 Channel 3W

16 February 2017 User Review

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Two Channels 3W PAM8403 Class D Audio Amplifier Board 5V USB Power is for Arduino,ARM & other MCU. The PAM8403 is a 3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve highquality sound reproduction. The new filterless architecture allows the device to drive the speaker directly , requiring no low-pass output filters,thus to save the system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8403 is much better than that of class-AB cousins. The PAM8403 is available in SOP-16 package.


  • 3W Output at 10% THD with a 4 Load and 5V Power Supply

  • Filterless, Low Quiescent Current and Low EMI

  • Low THD+N

  • Superior Low Noise

  • Efficiency up to 90%

  • Short Circuit Protection

  • Thermal Shutdown

  • Few External Components to Save the Space and Cost


  • LCD Monitors / TV Projectors

  • Notebook Computers

  • Portable Speakers

  • Portable DVD Players, Game Machines

  • Cellular Phones/Speaker Phones



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