Simplified Block Diagram
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- 5.5V to 18V Single-Supply Operation (EV System)
- USB Audio Streaming (EV System)
- I2S, Left-Justified, or TDM Input
- Optional Output Filters
- Proven PCB Layout
- Fully Assembled and Tested
- Windows 7- and Windows 8-Compatible Software
- Notebook Computers
The MAX98371 evaluation system (EV system) evaluates the MAX98371 digital input Class D speaker amplifier with dynamic headroom tracking. The EV system comprises the MAX98371 development (DEV) board, Maxim’s audio interface 1 (AUDINT1) board, and the MAX98371 evaluation software.
The MAX98371 DEV board is a fully assembled and tested PCB that contains the necessary circuitry and connections to evaluate the MAX98371 device. It is recommended that the DEV board be evaluated with the AUDINT1 board as an EV system. The MAX98371 requires two supply inputs, 1.14V to 1.98V (DVDD) and 5.5V to 18V (PVDD), and can deliver 19W into an 8Ω load. Additionally, the MAX98371 supports standard I2S, left-justified, and TDM digital audio interfaces.
When evaluated as an EV system, the AUDINT1 board provides the necessary logic rails and USB-to-I2S and USB-to-I2C interfaces needed to evaluate the MAX98371 DEV board with only a single external power supply. Figure 1 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 8-compatible software that provides a simple and intuitive graphical user interface (GUI). The MAX98371 evaluation software is only for use with the MAX98371 EV system.