PAM8403 PAM-8403 8403 2.5V To 5V 2 Channel Mini Class D 3W+3W Stereo Audio Amplifiers 2.5-5V USB Power Dual Channels 3W Digital Power Audio Amplifier
The PAM8403 5V Two-channel Stereo is a 3W+3W, class-D audio amplifier. Allowing it to achieve high-quality sound reproduction. The new filter less 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 output 3 w + 3 w power Class D
- Works with 2.5V-5v power supply
- High amplification efficiency 85%
- can directly drive 4 Ω/8 Ω small speakers
- Good sound quality & noise suppression
- Unique without LC filter class D digital power board
- Can use computer USB power supply directly
- Small Size, 1.85 x 2.11 cm can easily fit in a variety of products
Specifications:
- Operating Voltage Range – 2.5V – 5.5V
- Max Gain – 24 dB
- Current Handling Capacity – 8 mA
- Efficiency – 87 %
- Amplifier IC – PAM 8403
- Load – Can direct drive 4 or 8 ohm small speakers.
- Power supply Rejection Ratio – -58 dB.
- S/N Ratio – 80 dB.
- Dimensions – 21 mm x 18 mm x 3 mm
- Weight – 1.5 gms
Note when using:
- Input audio should be via shielded wire for best performance.
- Use proper filtered power supply with good filter capacitors.
- Take care not to short speaker wires else IC will get damaged.
- Make sure power supply never execed 5.5V else IC will get damaged. Use regulated power supply.
Application:
- LCD TVs, monitors
- Laptop
- Portable Speakers
- Portable DVD players, game consoles
- Phone / speakerphone
Package included:
- 1 x PAM8403 5V 2 Channel Stereo Mini Class D 3W+3W Audio Amplifier Board
