2 Channels 3W PAM8403 Power Supply Class D Audio Amplifier Board 5V USB Power
This is a mini 2 channels 3w amplifier with PAM8403. It is perfect for MP3/MP4/notebook. And you could also power the board with 5V USB power supply.
Power supply: DC 1A (DC): 5V
Output power: 3W + 3W (4 ohms)
Size: 24 * 15.5 * mm positioning hole size: 20mm aperture spacing: 2mm
1: Positive and negative power supply can not be reversed, the power supply voltage can not exceed 5.5V, these two violations could result in IC damage.
2: On-chip high-gain buffer, the board can not change any component parameters do not meet the parameters will result in IC damage.
3: Try using the line input cable with shielded, can play a role in immunity, eliminate clutter current sound.
4: Cmos pipe BTL output drive mode, the speaker can not be negative about together, connect-4 speaker wire is completely independent, does not allow total access!
1 Mini Digital Audio Amplifier Board