Analog Devices Inc./Maxim Integrated MAX98361BEVSYS#WLP

Overview

MAX98361BEVSYS#WLP from Analog Devices is a fully assembled evaluation system for the MAX98361B mono Class-D audio amplifier in WLP package, supporting left-justified digital audio input, 2.5V–5.5V VDD supply, and 1.8V VDDIO logic interface. It enables rapid functional validation of filterless speaker drive in portable audio applications with no external tools or software required.

For engineers reviewing the MAX98361BEVSYS#WLP datasheet, MAX98361BEVSYS#WLP pinout, MAX98361BEVSYS#WLP application, or MAX98361BEVSYS#WLP equivalent, this system provides immediate USB-powered evaluation of PCM-based audio amplification, gain/channel configuration via hardware jumpers, and TDM channel selection - critical for embedded audio subsystem prototyping and acoustic performance verification.

Technical Context

The MAX98361BEVSYS#WLP integrates the MAX98361B development board and Audio Interface Board III (AUDINT3), enabling direct USB-to-PCM conversion and delivery of BCLK, LRCLK, and DIN signals to the WLP-packaged IC. The system supports three digital audio modes: left-justified (for MAX98361B/D), I2S (for MAX98361A/C), and 8-channel TDM with fixed 12dB gain.

Power architecture separates analog VDD (2.5V–5.5V) and digital VDDIO (1.2V–VDD) domains; AUDINT3 supplies 1.8V VDDIO via J1, while VDD is applied externally at VIN or sourced from AUDINT3's limited 5V rail (for functional tests only). Gain is set via J4 shunt positions (−3dB to 12dB), and channel selection uses DAI configuration headers J6–J8 (Left/Right/Mono Mix).

Key Specifications

Availability

MAX98361BEVSYS#WLP is available at Aetrix Electronics and suitable for portable audio prototyping, USB-based acoustic testing, and embedded voice interface validation requiring stable component supply and full-system evaluation readiness.

Supply support for MAX98361BEVSYS#WLP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, communications, and industrial applications.

The MAX98361 product line delivers ultra-small, low-power mono Class-D audio amplifiers with PCM input for space-constrained portable devices - designed specifically for battery-powered wearables, hearables, and IoT endpoints demanding high-fidelity audio with minimal PCB footprint.

FAQ

What is the primary function of the MAX98361BEVSYS#WLP?

The MAX98361BEVSYS#WLP is a complete evaluation system for the MAX98361B mono Class-D audio amplifier. It includes the development board, Audio Interface Board III (AUDINT3), and micro-USB cable, enabling immediate USB-powered evaluation of left-justified digital audio playback, gain adjustment, channel selection, and filterless speaker drive without external test equipment or software installation.

Does the MAX98361BEVSYS#WLP support I2S or only left-justified mode?

The MAX98361BEVSYS#WLP evaluates the MAX98361B variant, which natively supports left-justified mode. While the hardware platform (e.g., J3 header, AUDINT3 interface) can route I2S signals, the MAX98361B IC itself is specified for left-justified operation per its datasheet; I2S compatibility requires the MAX98361A or MAX98361C variant instead.

How is power delivered to the MAX98361BEVSYS#WLP during evaluation?

The MAX98361BEVSYS#WLP receives two power domains: VDDIO (1.8V) is supplied by the AUDINT3 board via J1 connector, and VDD (2.5V–5.5V) is applied externally at the VIN binding posts. The AUDINT3's 5V rail may supply VDD for basic functionality checks but must not be used when driving speakers due to current limitations.

Can the MAX98361BEVSYS#WLP evaluate TDM mode, and how is channel selection performed?

Yes - the MAX98361BEVSYS#WLP supports 8-channel TDM operation with the MAX98361B. In TDM mode, gain is fixed at 12dB, and channel selection (0–7) is achieved by configuring both the GAIN_SLOT pin (via J4 shunt) and DAI configuration header (J6/J7/J8), as defined in Table 6 of the evaluation system documentation.

What speaker load is compatible with the MAX98361BEVSYS#WLP output?

The MAX98361BEVSYS#WLP delivers filterless Class-D output directly to 4Ω or 8Ω speakers via FOUTP and FOUTN binding posts. No external LC filter is required for standard use cases; however, ferrite beads and 100pF capacitors (FB1/FB2, C3/C4) may be added for EMI suppression when using speaker cables longer than 12 inches.