Description

The item is a high-power but super mini 2-channel digital audio amplifier board, which 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, and features uilt-in standby electronic , high-gain buffer amplifier and short circuit protection. It is perfect for MP3, MP4 and Notebook PC.

Audio Amplifier Board,Module

Features

- Color: mainly red.
- Material: durable PCB board and metal.
- Dimension: about 0.91 x 0.63 x 0.08 inch (2.3 x 1.6 x 0.2cm).
- Positioning holes size: spacing 20mm; Aperture: about 2mm.
- High -Channel 3W Super Mini Digital Audio Amplifier Circuit Board.
- New efficient digital amplifier chip, and special internal output processing circuit.
- Eliminating the conventional LC network.
- Using EMI.
- Power supply: DC 3.6V-5.5V.
- Output power: 3W +3W (4 in Europe).
- -to-noise ratio: 90dB.
- Efficiency: more than 90%.
- 2 channels 3W amplifier with PAM8403.
- Output is CMOS 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.

Notes

- Power positive and negative can not be reversed, the supply voltage can not exceed 5.5V, these two violations would have led IC damage.
- high-gain buffer can not be altered to to board any component parameters, does not meet the parameters will result in IC damage.
- Input line try to use shielded line, you can play an - effect, eliminate clutter current sound.
- Output for cmos tube driver, the negative terminal of the left and right speakers can not be together, that the four lines connecting to the speaker is completely independent, and does not allow !
High Power Module

1 * High Power 2-Channel 3W Super Mini Digital Audio Amplifier Board Circuit Board (Red)

1.If you have some inquires or problems, Please feel free to contact us.
2.We will reply your email within 1 business day (except weekend).
3.When delivery is delayed or items are damaged during delivery, please email us first before you leave feedback. Thank you.