SmartElex MAX98357A I2S Audio Amplifier Breakout Board | Class-D Mono Amp for Raspberry Pi & Microcontrollers

Technical Specifications

• Brand: SmartElex
• Model / IC: MAX98357A
• Module Type: I2S Audio Breakout Amplifier
• Amplifier Class: Class-D (High Efficiency)
• Audio Channels: Mono
• Input Interface: I2S Digital Audio
• Supply Voltage: 3.3V – 5V DC
• Output Power:
  • Up to 3W @ 4Ω (5V supply)
  • Up to 1.5W @ 8Ω
• Speaker Impedance: 4Ω – 8Ω
• DAC Resolution: 16-bit / 24-bit (I2S)
• Low Power Consumption: Yes (ideal for portable devices)
• Onboard Features:
  • Integrated DAC + Amplifier
  • Filterless output (no external LC filter required)
• Protection: Short-circuit and thermal protection (IC-level)
• PCB Type: Compact breakout board with header pins