DFRobot
3W mini audio stereo amplifier
This compact stereo amplifier module from DFRobot is based on the PAM8403 chip, delivering 3W per channel into 4Ω speakers with over 90% efficiency. It's a f...
This compact stereo amplifier module from DFRobot is based on the PAM8403 chip, delivering 3W per channel into 4Ω speakers with over 90% efficiency. It's a fully functional two-channel audio amplifier with an integrated sleep mode that can be controlled via a microcontroller.
Operating from 3.6–5.5V DC, the module is well-suited for battery-powered audio projects, portable speakers, and embedded sound systems where space and power efficiency are critical.
Key Features
- Stereo Output – Two independent 3W audio channels
- High Efficiency – Greater than 90% efficiency (Class D)
- Sleep Mode – Integrated low-power sleep function, controllable via pin
- Compact Size – Just 15.5 × 24mm
- PAM8403 Chip – Proven filterless Class D amplifier IC
Specifications
- Power Supply – 3.6–5.5V DC
- Output Power – 3W + 3W (4Ω load)
- Efficiency – >90%
- Board Size – 15.5 × 24mm
- Amplifier IC – PAM8403
Ideal For
- DIY portable speakers
- Embedded audio projects
- Arduino and microcontroller sound output
- Battery-powered audio applications
Package Contents
- 1× 3W mini audio stereo amplifier module
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
Find this product in
Audio & Video
Brands
Supplier page — dfrobot.com
Supplier Description · 570.5 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
