10PCS PAM8403 Super Mini Digital Amplifier Board 2 x 3W Class D Digital Amplifier Board Efficient 2.5 to 5V USB Power Supply

Description

• 10PCS PAM8403 Super Mini Digital Amplifier Board 2 x 3W Class D Digital Amplifier Board Efficient 2.5 To 5V USB Power Supply

Products:

PAM8403 mini D digital amplifier board

1. Operating voltage: 2.5V-5.5V.
Notes:
The power supply voltage should not exceed 5.5V, the positive and negative power supply should not be reversed.

2. Speaker with: 4-8 Europe, Recommended: 4 Europe; Speaker power: 2-8W.

3. You can use the computer USB port 5V power supply, or use mobile phone charger USB port 5V power supply, you can also use lithium battery power.

4. High efficiency 90%, 4 load and 5V power supply conditions, can provide 3W (left channel) +3 W (right channel) output power. Class A, Class B and other power amplifier efficiency is only about 30%, Class D power amplifier in today's green trend under the highly respected.

5. Class D amplifier efficiency is very high, will not affect the sound quality because of temperature rise, and do not add heat sink, the volume is very small.

application:

LCD TV, monitor

laptop

Portable speakers

Portable DVD players, game consoles

Phone / speakerphone

Precautions for use:

First connected to the speaker and then turn on the power, or easy to damage the chip;

Since the digital volume control in the module has a large gain, do not allow the audio signal input to be too large for the signal to produce a cut limit.

Wiring diagram:||

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