The PAM8403 is a 5V, two-channel stereo, class-D audio amplifier that delivers 3W+3W output, ensuring high-quality sound. Its filterless design allows direct speaker drive without low-pass output filters, reducing system cost and PCB area. You can power it using a mobile charger or computer USB plug. It supports two 3/5 watt speakers on both L and R channels, with audio input connected to the LTR portion.
Compared to Class-AB amplifiers, the PAM8403 is more efficient, extending battery life and making it ideal for portable applications.
**Note**:
– Use shielded wires for input audio for optimal performance.
– Ensure a proper filtered power supply with good filter capacitors.
– Avoid shorting speaker wires to prevent IC damage.
– Do not exceed a 5.5V power supply to avoid damaging the IC. Use a regulated power supply.
Applications:
- LCD Monitors / TV Projectors
- Notebook Computers
- Portable Speakers
- Portable DVD Players, Game Machines
- Cellular Phones/Speaker Phones
