PAM8403 , 3 Watt Class D Amplifier

PAM8403 , 3 Watt Class D Amplifier

PAM8403 Amplifier Kelas D
PAM8403 Amplifier Kelas D


PAM8403 Amplifier Kelas D


The PAM8403 is a 3W, class-D audio amplifier. It offers low THD+N,
allowing it to achieve high-quality sound reproduction. The new
filterless architecture allows the device to drive the speaker directly,
requiring no low-pass output filters, thus saving system cost and PCB
With the same numbers of external components, the efficiency of the
PAM8403 is much better than that of Class-AB cousins. It can extend
the battery life, which makes it well-suited for portable applications.
The PAM8403 is available in SOP-16 package.


  • 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


What is PAM8403 for?

  • LCD Monitors / TV Projectors
  • Notebook Computers
  • Portable Speakers
  • Portable DVD Players, Game Machines
  • Cellular Phones/Speaker Phones

Typical Application Circuit

Rangkaian PAM8403
Typical circuit for PAM8403

Pin List

Pin number Pin name Pin Function
1 +OUT_L Left Channel Positive Output
2 PGND Power GND
3 -OUT_L Left Channel Negative Output
4 PVDD Power VDD
5 MUTE Mute Control Input (active low)
6 VDD Analog VDD
7 INL Left Channel Input
8 VREF Internal analog reference, connect a bypass capacitor from VREF to GND.
9 NC No Connact
10 INR Right Channel Input
11 GND Analog GND
12 SHND Shutdown Control Input (active low)
13 PVDD Power VDD
14 -OUT_R Right Channel Negative Output
15 PGND Power GND
16 +OUT_R Right Channel Positive Output

 Functional Block Diagram

PAM8403 Functional Block Diagram
PAM8403 Functional Block Diagram

Absolute Maximum Rating

These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may
affect device reliability. All voltages are with respect to ground.

Parameter Rating Unit
Supply Voltage 6.0 V
Input Voltage V -0.3 to VDD +0.3V V
Operation Temperature Range -40 to +85 °C
Maximum Junction Temperature 150 °C
Operation Junction Temperature -40 to +125 °C
Storage Temperature -65 to +150 °C
Soldering Temperature 300, 5 sec °C


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