Product Description :
Super mini digital amplifier board, ultra-thin , can be very convenient to place in the gap of small plastic boxes or other devices. It can obtain maximum power output at a lower voltage. Built-in standby electronic switch, high-gain buffer amplifier, short circuit protection. It is perfect for MP3/MP4/notebook.
Color: mainly red.
Material: durable PCB board and metal
Dimension: about nbsp; 0.91 x 0.63 x 0.08 inch (2.3 nbsp; x 1.6 x 0.2cm).
Positioning holes size: spacing 20mm; Aperture: about 2mm.
New efficient digital amplifier chip, and special internal output processing circuit.
Eliminating the conventional LC network.
Power supply: DC 3.6V-5.5V.
Output power: 3W +3W (4 in Europe).
Signal-to-noise ratio: 90dB.
Efficiency: more than 90%.
2 channels 3W amplifier with PAM8403.
Output is CMOS BTL driver.
Cannot change any component parameters to protect IC.
The board can also powered by 5V USB power supply or 4 x 1.5V batteries.
It is perfect for MP3/MP4/notebook.