PAM8403 Stereo Digital Audio Amplifier Module [2x3W]

The PAM8403 amplifier module is a miniature and very small digital board that effectively eliminates noise. Even when no device is connected to the audio input, no noise is heard from the speaker connected to it. This module has two stereo output channels with a power of 3 watts and is powered by a voltage of 5 volts. This feature allows it to directly drive small 4 and 8 ohm speakers with good sound quality.

Among the outstanding features of this module are the Null-LC class D filter and the ability to connect directly to the computer's USB. Its miniature design and extremely powerful amplifier make this module ideal for internal use in digital projects. You can also use this module with the Arduino board in your projects.

One of the outstanding advantages of the PAM8403 over other modules is the presence of a micro USB power socket on it, which allows you to easily power it with Android phone chargers. In addition, this module has very low harmonic distortion and noise, which significantly improves the sound quality.

Digital Audio Amplifier Application:

1. Phones
2. Bluetooth and portable speakers
3. Arduino projects
4. Small TVs and LCD displays
5. Car audio systems
6. In robots for playing sound or music

Digital Audio Amplifier Specifications:

1. Supply voltage: DC3.4V-DC5V
2. Output power: Two stereo channels with 3 watts per channel (with 4 ohm load)
3. Load resistance: 4 and 8 ohms
4. Frequency response: 20 Hz to 20 kHz
5. Signal-to-noise ratio (SNR): More than 90 dB
6. Harmonic distortion: Less than 0.1% at rated power
7. Amplifier type: Class D
8. Input port: RCA analog input or 3.5 mm jack
9. Power port: Micro USB socket