Analog Devices Inc./Maxim Integrated MAX98360DEVSYS#FCQFN

Overview

MAX98360DEVSYS#FCQFN from Analog Devices is a fully assembled evaluation system for the MAX98360D mono Class D audio amplifier in FCQFN package, supporting left-justified digital audio input, 5 selectable gains (–3dB to +12dB), filterless 4Ω/8Ω speaker drive, and USB-powered operation via the included Audio Interface Board III (AUDINT3). It enables rapid validation of audio playback performance in portable and space-constrained embedded systems.

For engineers reviewing the MAX98360DEVSYS#FCQFN datasheet, MAX98360DEVSYS#FCQFN pinout, MAX98360DEVSYS#FCQFN application, or MAX98360DEVSYS#FCQFN equivalent, this kit delivers plug-and-play USB audio streaming, configurable channel/gain selection via jumpers, and direct speaker connection without external filtering - ideal for evaluating PCM-input Class D amplifiers in consumer audio, IoT voice interfaces, and industrial HMI designs.

Technical Context

The MAX98360DEVSYS#FCQFN integrates the MAX98360D IC with the AUDINT3 board to form a complete USB-to-PCM evaluation platform. The DEV board accepts 2.5V–5.5V VDD and 1.2V–VDD VDDIO, while AUDINT3 supplies regulated 1.8V VDDIO and generates BCLK/LRCLK from USB audio streams.

It supports three digital interface modes: left-justified (for MAX98360D), I2S (A/C), and 8-channel TDM. Gain and channel selection are implemented via physical shunts on headers J4 (GAIN_SLOT) and J6–J8 (DAI configuration), enabling hardware-based configuration without firmware.

Key Specifications

Availability

MAX98360DEVSYS#FCQFN is available at Aetrix Electronics and suitable for audio subsystem validation, USB-based prototyping, and Class D amplifier qualification requiring stable component supply and full-system reference design fidelity.

Supply support for MAX98360DEVSYS#FCQFN 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 leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement, power management, and connectivity applications.

The MAX98360 product line delivers low-cost, filterless mono Class D amplifiers optimized for battery-powered portable audio, smart speakers, and compact human-machine interfaces where PCB area, EMI, and power efficiency are critical.

FAQ

What does the MAX98360DEVSYS#FCQFN evaluate?

The MAX98360DEVSYS#FCQFN evaluates the MAX98360D mono Class D audio amplifier IC in FCQFN package. It includes the development board, Audio Interface Board III (AUDINT3), and micro-USB cable. The system validates left-justified digital audio input, gain/channel configuration, filterless speaker drive, and USB-powered operation - all confirmed in the General Description and EV System Contents sections.

Does the MAX98360DEVSYS#FCQFN support I2S mode?

No - the MAX98360DEVSYS#FCQFN is configured for the MAX98360D variant, which supports left-justified mode and 8-channel TDM, not I2S. The documentation explicitly states "MAX98360B and MAX98360D support standard left-justified mode" and distinguishes I2S as exclusive to MAX98360A/C. This functional limitation is tied to the evaluated IC, not the board's hardware capability.

How is gain configured on the MAX98360DEVSYS#FCQFN?

Gain is configured using shunts on header J4, which connects the GAIN_SLOT pin of the MAX98360D to specific voltage levels. Per Table 4, shunt positions yield –3dB (1–4), +3dB (1–2), +6dB (1–3), +9dB (no shunt), or +12dB (1–5). These settings are hardware-defined and require no software or register writes - a key feature for rapid analog-audio validation.

Can the MAX98360DEVSYS#FCQFN operate without the AUDINT3 board?

Yes - the MAX98360DEVSYS#FCQFN DEV board can operate standalone when driven by external audio test equipment via the DAI header (J3). However, VDD (2.5V–5.5V) must be supplied externally at VIN/GND, and VDDIO must be provided separately (1.2V–VDD). The AUDINT3 board is optional but required for USB audio streaming and integrated 1.8V VDDIO generation.

What speaker loads are supported by the MAX98360DEVSYS#FCQFN?

The MAX98360DEVSYS#FCQFN supports 4Ω and 8Ω speakers directly via its filterless FOUTP/FOUTN outputs. The DEV board is assembled for direct speaker connection without external LC filters, as stated in the Speaker Output section. For long cables (>12 inches), optional ferrite bead + capacitor EMI filters (C3/C4, FB1/FB2) can be added per the EMI Filter section.