Mini Digital Power Amplifier Board 2x3W Class D Audio Module USB DC 5V PAM8403
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SKU: U2I-BG-1413068
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Description
Feature:
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 in the 4Ω load and 5V power supply conditions A class, B class amplifier such efficiency is only about 30% D class amplifier is highly respected today D class amplifier efficiency is extremely high, not because of temperature affect the sound quality But do not add heat sink and take less space noise cancelling circuit was built in the amplifier board Power on / off without pop noise Module has a short-circuit current protection and over-temperature protection
Specification:
Operating Voltage: 2.5V ~ 5.5V Speaker With: 4Ohm ~ 8Ohm (recommended: 4Ohm) Speaker Power: 2W ~ 8W Size: 21 x 18 x 3.4mm (L x W x H) Net Weight: 1g
Application:
LCD TVs, monitors Laptop Portable Speakers Portable DVD players, game consoles Phone / speakerphone
Note:
First turn OFF and then powered speakers , or likely to cause damage to the chip; Because digital volume control module has a great gain , so do not let too much leaving the audio signal input signal cut limiter.
Package included:
1 x Mini Amplifier Board
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