PAM8403 DC 5V Class D Mini Digital Amplifier Board Module – Green

PAM8403 DC 5V Class D Mini Digital Amplifier Board Module – Green

Specifications:
- Operating voltage: 2.5V~5.5V
- Speaker With: 4~8ohms, recommended: 4ohms
- Speaker Power: 2~8W
- Can use the computer USB port 5V power supply or using a mobile phone charger USB port 5V power supply, battery power can also be used
- High efficiency: 90%, can provide 3W (left channel)+3W (right channel) output power under 4ohm load and 5V power supply conditions; Class A, class B amplifier efficiency is only about 30%
- Class D amplifier is highly respected today, class D amplifier efficiency is extremely high, sound quality won’t be affected due to increasing temperature; Do not need heat sink and take less space
- Noise canceling circuit was built in the amplifier board, no pop noise when power on / off; With short-circuit current protection and over-temperature protection
Application:
LCD TVs, monitors, laptops, portable speakers, portable DVD players, game consoles and phone / speakerphone
Note: Must connect speaker first, then power on, or chip may be damaged; Do not input too large audio signal larger; Output port negative of left / right channel can not be in parallel; Max. working voltage: 5.5V