Amplifier Penguat Audio Kelas D 3 Watt PAM8403

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


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

Typical Application Circuit

Rangkaian PAM8403

Rangkaian PAM8403

Daftar Pin

Nomor PinNama PinFungsi
1+OUT_LLeft Channel Positive Output
3-OUT_LLeft Channel Negative Output
5MUTEMute Control Input (active low)
6VDDAnalog VDD
7INLLeft Channel Input
8VREFInternal analog reference, connect a bypass capacitor from VREF to GND.
9NCNo Connact
10INRRight Channel Input
11GNDAnalog GND
12SHNDShutdown Control Input (active low)
14-OUT_RRight Channel Negative Output
16+OUT_RRight 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 Voltage6.0V
Input VoltageV -0.3 to VDD +0.3VV
Operation Temperature Range-40 to +85°C
Maximum Junction Temperature150°C
Operation Junction Temperature-40 to +125°C
Storage Temperature-65 to +150°C
Soldering Temperature300, 5 sec°C





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