{"product_id":"max98357a-i2s-3w-class-d-digital-audio-amplifier-breakout-board","title":"MAX98357A I2S 3W Class D Digital Audio Amplifier Breakout","description":"\n\u003ch2\u003eMAX98357A I2S 3W Class D Digital Audio Amplifier – Crystal Clear Audio for Makers \u0026amp; Builders\u003c\/h2\u003e\n\u003cp\u003eUpgrade your DIY audio projects with the \u003cstrong\u003eMAX98357A I2S 3W Class D Amplifier Breakout Board\u003c\/strong\u003e — a compact, plug-and-play digital audio solution designed for Raspberry Pi, ESP32, Arduino, and other microcontroller or development board platforms. Featuring an integrated I2S DAC decoder, this board delivers crisp, high-fidelity sound output with minimal external components required. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 3.2W at 4Ω (THD 10%) | 1.8W at 8Ω (THD 10%)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eI2S Sampling Rate:\u003c\/strong\u003e 8 kHz – 96 kHz for wide audio format compatibility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Class D Amplifier Gain:\u003c\/strong\u003e 3 dB \/ 6 dB \/ 9 dB \/ 12 dB \/ 15 dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Master Clock (MCLK) Required\u003c\/strong\u003e — simplifies integration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug \u0026amp; Play:\u003c\/strong\u003e Single power supply; auto-configures 35 different clocks and 128 digital audio formats\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e DC 2.5V – 5.5V (VCC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Size:\u003c\/strong\u003e 19.1 × 17.7 mm — ideal for space-constrained builds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic + Metal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePin Reference\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLRC:\u003c\/strong\u003e Left\/Right clock (I2S \/ LJ mode) \/ sync clock (TDM mode)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBCLK:\u003c\/strong\u003e Bit clock input\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIN:\u003c\/strong\u003e Digital audio input signal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGAIN:\u003c\/strong\u003e Gain \u0026amp; channel selection (fixed at 12 dB in TDM mode)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGND:\u003c\/strong\u003e Ground \/ power return\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVCC:\u003c\/strong\u003e Positive power supply (DC 2.5V – 5.5V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRobot voice systems and DIY audio builds\u003c\/li\u003e\n  \u003cli\u003eRaspberry Pi, ESP32, and Arduino audio output projects\u003c\/li\u003e\n  \u003cli\u003eSmart home devices, IoT systems, and development board prototypes\u003c\/li\u003e\n  \u003cli\u003eHobbyists, engineers, and makers who demand clean, efficient audio\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × MAX98357A I2S 3W Class D Amplifier Breakout Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExplore More DIY Components\u003c\/h3\u003e\n\u003cp\u003eLooking for more components to complete your build? Check out our \u003ca href=\"\/products\/stainless-steel-cord-end-caps-with-loop-jewelry-making-6pcs\"\u003eStainless Steel Cord End Caps with Loop – Jewelry Findings\u003c\/a\u003e or browse our \u003ca href=\"\/products\/metal-q-ring-spring-clasps-gold-silver-plated-jewelry-connectors\"\u003eMetal Q Ring Spring Clasps – Gold \u0026amp; Silver Plated\u003c\/a\u003e for other precision hardware in our store.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is the MAX98357A amplifier board compatible with Raspberry Pi and ESP32?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The MAX98357A I2S Class D amplifier breakout board is fully compatible with Raspberry Pi, ESP32, Arduino, and most other microcontrollers or development boards that support I2S audio output. It requires no master clock (MCLK), making integration straightforward.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What power supply does the MAX98357A board require?\u003c\/h4\u003e\n\u003cp\u003eA: The board operates on a single DC power supply ranging from 2.5V to 5.5V, making it easy to power directly from a standard 3.3V or 5V microcontroller supply without additional regulation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What gain settings are available on this Class D amplifier?\u003c\/h4\u003e\n\u003cp\u003eA: The MAX98357A supports five selectable gain levels: 3 dB, 6 dB, 9 dB, 12 dB, and 15 dB, configurable via the GAIN pin. In TDM mode, the gain is fixed at 12 dB.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What audio formats does this I2S DAC decoder support?\u003c\/h4\u003e\n\u003cp\u003eA: The board auto-configures up to 128 digital audio formats across 35 different clocks, supporting I2S sampling rates from 8 kHz to 96 kHz — covering everything from voice audio to high-quality stereo playback.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is the MAX98357A amplifier board compatible with Raspberry Pi and ESP32?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The MAX98357A I2S Class D amplifier breakout board is fully compatible with Raspberry Pi, ESP32, Arduino, and most other microcontrollers or development boards that support I2S audio output. 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