PAM8403 mini 5V digital amplifier board with switch potentiometer can USB su For Sale

PAM8403 mini 5V digital  amplifier board with switch potentiometer can USB  su


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PAM8403 mini 5V digital amplifier board with switch potentiometer can USB su:
$7.06

PAM8403 mini 5V digital amplifier board with switch potentiometer can USB PAM8403 Super Mini 5V Digital Amplifier Board 3W x 2 USB ed Volume Control Operating Voltage: 2.5V-5.5V.
e : Do exceed the supply voltage 5.5V, do reverse the positive and negative supply.
Speaker: 4-8Ohm. Speaker :2-8W.
Can be ed by 5V USB, or cell phone charger USB port 5V, Lithium battery also.
High efficiency of 90%, 4Ohm load and 5V supply conditions, can provide 3W ( left channel ) +3 W ( right channel ) output .
The efficiency of amplifier Class A and Class B is only at 30%, Class D amplifier is respected in today's green trend.
Class D amplifier efficiency is very good, the sound quality will be affected by temperature, and it works still very well even if without additional heat sink.
Built-in noise canceling circuit, short circuit current protection and over-temperature protection.
PAM8403 Mini Amplifier Board
Operating voltage: DC 2.5-5.5V
Max output: 3Wx2 (5V 4Ohm)
Max output: 3Wx2 (5V 4Ohm) Efficiency: 90%
Material:Metal
size:29.5 x 20.2 x 15mm
Colour:Green
Package Contents: 1 x digital amplifier board
e: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.


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