PAM8406 DIGITAL AMPLIFIER MODULE

PAM8406 Digital Amplifier Board is a compact and efficient Class-D audio amplifier module featuring the PAM8406 chip. This board delivers 3W+3W stereo output with high efficiency, making it ideal for portable speakers, computer audio systems, and DIY audio projects.

Key Features:

• • High Efficiency: Class-D architecture with up to 90% efficiency
  • Stereo Output: 3W×2 channels into 4Ω speakers at 5V
  • Wide Voltage Range: Operates from 2.5V to 5.5V DC
  • Low Noise: Built-in noise suppression circuitry
  • Compact Design: Miniature PCB with all necessary components

Technical Specifications:

• • Amplifier IC: PAM8406
  • Output Power: 3W×2 (4Ω, 5V, 10% THD)
  • Frequency Response: 20Hz-20kHz (±3dB)
  • THD+N: <10% at 3W output
  • Signal-to-Noise Ratio: ≥80dB
  • Input Voltage: 2.5V-5.5V DC
    • Recommended Voltage: 5V
  • Standby Current: <1μA
  • Dimensions: 20mm × 15mm × 5mm

Board Components:

• • PAM8406 amplifier IC
  • Stereo audio input connector
  • Speaker output terminals
  • Power input pins
  • Filter capacitors
  • Gain setting resistors

Pin Configuration:

• • VCC: Power input (2.5V-5.5V)
  • GND: Ground connection
  • L-IN: Left channel audio input
  • R-IN: Right channel audio input
  • L+/-: Left speaker output
  • R+/-: Right speaker output
  • SD: Shutdown control (active low)

Connection Guide:

• • Connect 5V power supply to VCC and GND
  • Connect audio source to L-IN and R-IN
  • Connect 4Ω-8Ω speakers to output terminals
  • For maximum volume, leave SD pin unconnected

Typical Applications:

• • Portable Speakers: Battery-powered audio systems
  • Computer Audio: Desktop speaker amplifiers
  • DIY Projects: Custom audio amplifiers
  • Toys and Gadgets: Sound systems for electronic devices
  • Educational Kits: Audio circuit experiments

Equivalent Models:

• • PAM8403 Amplifier Board: Similar 3W×2 amplifier with different pinout
  • TPA2012 Amplifier Board: Higher power alternative

Datasheet:

• • Download PAM8406 Datasheet

Keywords:

• • PAM8406 Amplifier Board
  • Class-D Audio Amplifier
  • 3W Stereo Amplifier
  • Digital Amplifier Module
  • Mini Audio Amplifier

Package Includes:

• • 1 x PAM8406 Digital Amplifier Module with Volume Control Potentiometer 5Wx2 Stereo