About PAM 8403 Amplifier IC- Datasheet,Pinouts,Max Voltage etc

Pam 8403 Audio IC details,pinout,voltage and datasheet

The PAM 8403 is a high performance and high efficient Class-D audio amplifier IC that can output 3W+3W Sound power with +5V voltage.

It is upto 90% efficient and is useful for portable applications such as cellphone speakers etc

I have a stereo speakers system from philips that uses this ic and it is really power efficient and the sound output is high quality with no noise. In my automobile, i can’t tell if the amp is on or not because there is no noise from speakers, i can’t guarantee that there will be no noise if this amp is powered from mains supply

This amplifier with a subwoofer should be enough for your small room


  • 3W Output at 10% THD with a 4Ω 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
  • Pb-Free Package

PAM 8403 Pinout

  1. Left Channel Positive Output
  2. Power Ground (Negative)
  3. Left Channel Negative Output
  4. Power VDD (+5V)
  5. Mute
  6. Analog VDD
  7. Left Channel Input
  8. VREF (Refer to Datasheet)
  9. NC (Not Connected)
  10. Right Channel Input
  11. Analog Ground
  12. Shutdown Control Input
  13. Power VDD (+5V)
  14. Right Channel Negative Output
  15. Power Ground (Negative)
  16. Right Channel Positive Output

Maximum Ratings

Maximum Voltage – 2.5 to 6V (5.5V recommended)

Maximum Operating Temperature 40 to 85°c

Datasheet of PAM 8403

See datasheet here

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