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A small footprint audio amplifier measures only 2.2 x 1.9 cm. Can be easily placed in a variety of digital products within a small space. The high-efficiency dual-channel stereo amplifier requires only 2.5 to 5 V power, yet can output 3W +3 W power to drive 4 or 8-ohm speakers directly.
The Class D digital amplifier board utilizes a powerful PAM8403 amplifier IC with LC filter and can be powered by various sources, including a computer's USB interface with appropriate power filtering.
The amplifier uses a Class D setup with an efficiency of 90% capable of producing 3 watts of audio on each of the left and right audio outputs.
Rated working voltage 2.5V ~ 5V, limit operating voltage 5.5V.
Applications include LCD TV and monitors, laptop and portable computer, portable speakers, DVD players, game consoles.
Operating Voltage: 2.5V to 5.5V DC
Speaker Impedance: 4 to 8 ohm
Size: 22 x 19 x 4mm (L x W x H)
A full datasheet is available on the amplifier IC in PDF format.
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