Good amplifier board
The PAM8403 5V Two-channel Stereo is a 3W+3W, class-D audio amplifier, allowing it to achieve high-quality sound reproduction. The new filterless architecture allows the device to drive the speaker directly, requiring no low-pass output filters, thus saving system cost and PCB area.
You can power the pam8403 amplifier board 5v using your mobile charger or can be by a computer USB plug. You can use two speakers 3/5 watts on both sides L and R. And connect the Audio cord to the LTR portion.
With the same number of external components, the efficiency of the PAM 8403 is much better than that of its Class-AB cousins. It can extend the battery life, which makes it well-suited for portable applications.
|Operating Voltage (VDC)||2.5 ~ 5.5V|
|Current Handling Capacity (A)||0.08|
|Load||Can direct drive 4 or 8-ohm small speakers.|
|Dimensions||21 x 18 x 3(mm)|
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