PAM8403 5V 2-Channel Stereo Audio Amplifier Module

PAM8403 5V 2-Channel Stereo Audio Amplifier Module is based on PAM8403 which 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 area.

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. 

Features :

• Dual channel stereo, high output power (3 w + 3 w power @ 5V and 4 ohms load).
• Good sound quality.
• Double panel wiring solves crosstalk.
• Super mini design allows it to be easily placed in a variety of digital products.
• 3W Output at 10% THD with a 4ΩLoad and 5V Power Supply.
• Filterless, Low Quiescent Current and Low EMI.
• Superior Low Noise.
• Short Circuit Protection.
• Thermal Shutdown
• Input audio should be via shielded wire
• big output power, sound quality is good.
• Unique without LC filter class D digital power board
• can use computer USB power supply directly
• high amplification efficiency
• made with solid plate welding machine

Specifications:

Amplifier IC	PAM 8403
Operating Voltage Range	2.5V – 5.5V
Max Gain	24 dB
Current Handling Capacity	8 mA
Efficiency	87 %
S/N Ratio	80 dB
Power supply Rejection ratio	-58 dB
Load	Can direct drive 4 or 8 ohm small speakers
Dimensions in mm (LxWxH)	21.1 x 18.5 x 3
Weight (gm)	5

Application :

• Bluetooth Stereo Audio hands-free/headsets
• In robots that speak or generate sounds to indicate activities
• Portable Speakers
• LCD Monitors / TV Projectors
• Arduino or Raspberry Pi Game Machines
• Speaker Phones

Package Includes :

• 1 x PAM8403 3W Digital power Audio Amplifier Board USB DC 2.5V ~ 5V. Class D