Product Features:
Audio input: 3.5mm standard audio cable
Output type:
1. two-channel (stereo) amplifier output
2. two-channel (stereo) headphone output
Output power: 3W+3W
Support impedance: Amplifier output: 3-8 ohms Headphone output 16-32 ohms
Power supply voltage: 3V-5V
Supply current: 2A
Power interface: 5.5*2.1
Features: thermal protection, support power switch, volume control
Working temperature: -40 ° C - 85 ° C
The power amplifier does not include a power supply by default. It is recommended to use a 5V mobile phone charger for power supply, and the current is greater than 1A.
Note:
1) It is recommended to use 5V2A, charging power supply because of the current limit, the volume should not be opened, otherwise the power supply of the charging treasure will be cut off;
2) If it is a computer USB power supply, but also a computer audio input, there will be a common ground interference situation, that is, there will be interference sound, this is a normal phenomenon, the power supply alone is no problem
3) When the power indicator lights up during playback, the LED light will flash. This is the power supply current is not enough, you need to use 2A power supply, this phenomenon is normal
Packaging:
1 x Amplifier Board
1 x USB Cable
1 x 3.5mm Audio Cable