3Wminiaudiostereoamplifier(SKU:DFR0119)
Contents
1 Introduction
2 Specifications
3 Connection Diagram
Introduction
This is a mini stereo amplifier. It is a fully functional, two-channel audio amplifier, comes with electric
switcher.
Specifications
Power Supply: DC 3.6-5.5V (DO NOT apply over 5.5V, it damage the chip presently)
Output power: 3w+3w (4 ohms)
Efficiency: >90%
Size: 15.5*24mm
Weight: 7g
ConnectionDiagram
Sleep Mode:
When the "SW" PIN is low(0V), it will turn off the amplifier's bias circuitry. and enter the sleeping
mode.
When the "SW" value is high(5V), it will enter the working mode.
By default (without anything connected to this PIN) it will be HIGH / powered on and in normal
operation. If you don't need to turn it off manually, you can leave this pin disconnected like in the
wiring diagram picture. This feature is optional and will allow you by software to turn it off, to avoid
noise or save power. Note, the picture has a battery for power input, but you can use other power
supply at 5V.
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