Features and Benefits

  • 5.5V to 16V Single-Supply Operation (EV System)
  • USB Audio Streaming (EV System)
  • Digital Audio Interface (DAI)
    • I2S, Left-Justified, Up to 16-Channel TDM
    • SoundWire Compliant
  • Speaker Output (OUTP/OUTN)
  • I2C-Compatible Device
  • Windows 7- and Windows 10-Compatible Software
  • Fully Assembled and Tested

Product Details

The MAX98374 evaluation system (EV system) evaluates the high-efficiency MAX98374 mono Class D audio amplifier featuring dynamic headroom tracking (DHT) and brownout protection. The EV system consists of the MAX98374 development board (DEV board), Maxim’s Audio Interface 1 (AUDINT1) board, and the MAX98374 evaluation software.

The MAX98374 DEV board is fully assembled and tested and contains the necessary circuitry and connections to evaluate the MAX98374 device in the FCQFN or the WLP package. It is recommended that the DEV board be evaluated with the AUDINT1 board, as an EV system. The MAX98374 requires two supply inputs, 5.5V to 16V (PVDD) and 1.71V to 1.89V (DVDD). It is capable of delivering 16W into an 8Ω load. Additionally, the MAX98374 supports standard I2S, left-justified, TDM, and SoundWire® digital audio formats.

When evaluated as an EV system, the AUDINT1 board provides the necessary logic rails, USB-to-I2S and USB-to-I2C interfaces that are needed to evaluate the MAX98374 DEV board with only a single external power supply. The Simplified FCQFN EV System Block Diagram provides an image of the EV system, highlighting the key areas on each board.

Communication with the DEV board is facilitated by Windows® 7- and Windows 10-compatible software that provides a simple and intuitive graphical user interface (GUI). The MAX98374 evaluation software is only for use with the MAX98374 EV system.


  • Notebook Computers
  • Sound Bars
  • Tablets

Applicable Parts