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.
New efficient digital amplifier chip
Special internal output processing circuit
Eliminating the conventional LC network
Power supply: (DC) 3.6v-5.5V
Output power: 3W +3 W (4 in Europe)
Signal-to-noise ratio: 90dB
۲ 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
Dimensions: 0.91 in x 0.63 in x 0.08 in (2.3 cm x 1.6 cm x 0.2 cm)
Positioning Holes size: Spacing 20mm
Material: Circuit board