This miniature PAM8403 3W Class D audio amplifier module offers low THD+N, allowing it to achieve high-quality sound reproduction, all in a form factor about the size of a US postage stamp! The new filterless architecture allows the Stereo Audio Amplifier 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 Digital Subwoofer AmplifierPAM8403 is much better than that of Class-AB cousins. 2 Channel Mini Audio Amplification Board can extend the battery life, which makes it well-suited for portable applications.D Class Power Amplifier can be used in any DIY design requiring a miniature audio amplifier, especially portable and mobile applications operating on battery power.

Features Of PAM8403 Mini 2 Channel Stereo 3W Class D Audio Power Amplifier Module Board:

• Can use the computer USB port, USB power bank or a mobile phone charger to supply the 5V support power
• Battery power can also be used
• Can provide 3W (left channel) + 3W (right channel) output power into a 4Ω speaker load and 5V power supply
• CMOS class D amplifier design for high efficiency and low cost
• The noise-canceling circuit built into the amplifier board
• Power on / off without popping noise
• The module has short-circuited current protection, under-voltage lockout and over-temperature protection (shuts down at an internal temperature of 140C +/- 15C)

Specifications Of 2x3W Mini Digital Power Amplifier Board for Class D Stereo Audio Amplifier Module 5V Power:

1. Model: PAM8403
2. Operating voltage: 2.5V-5.5V
3. Speaker Load: 4-8 Ohms
4. High Efficiency: 90%
5. Size: 21 x 18 x 3.4 mm (L x W x H)
6. Net weight:1g

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 5V Two-channel Stereo Mini Class-D Audio Amplifier.

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