5pcs Mini Digital DC 5V Amplifier Board Class D23W USB Power Supply PAM8403 Audio Module

Description

• Operating Voltage: 2.5 V - 5.5 V
• Size: 21 x 18 x 3.4mm (L x W x H)
• High efficiency: 90%, 4 load and 5V power supply conditions can provide 3W (left channel) + 3W (right channel) output power

5pcs Mini Digital DC 5V Amplifier Board Class D23W USB Power PAM8403 Audio Module
Description:
You can use a computer USB port 5V power supply or a mobile phone charger. USB port 5V power supply battery power supply.

High efficiency: 90%, 4 load and 5V power supply conditions can provide 3W (left channel) + 3W (right channel) output power for class,
Efficiency like a B-class amplifier is just about 30% of the efficiency. D-class amplifiers are highly respected today
The D-class amplifier is very efficient, not because the temperature will affect the sound quality, please do not add heat sink or save space.
Built-in noise canceling circuit in the amplifier board, power on/off without pop, module has short circuit current protection and overheating protection
Application:
LCD TVs, Monitors,
Laptop
Portable Speaker
Portable DVD Player, Game Consoles
Phone/Speakerphone
Specifications:
Operating Voltage: 2.5 V - 5.5 V
Speaker: 4-8 ohm recommended: 4 ohms
Speaker Power: 2-8W
Size: 21 x 18 x 3.4mm (L x W x H)
Color: As the picture shows:
"Negative" left and right channel output can not be combined Otherwise, the IC will burn out, you need to connect the speaker (load) before turning on the power
Package:
5 x Mini Digital Amplifier Board Class D2 x 3W USB Power Supply PAM8403 Audio Module DC5V

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