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MAX98357 I2S 3W CLASS D AMPLIFIER INTERFACE AUDIO DECODER MODULE

Name: MAX98357 I2S 3W CLASS D AMPLIFIER INTERFACE AUDIO DECODER MODULE - Robo Bazar | Online Electronics Components Store in India - Quality Electronic Components Shop
Brand: Audio Module/ Amplifier
Price: 99.00 INR
Availability: InStock

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Categories: Audio Module/ Amplifier, Electronic Modules Tags: Audio Decoder Module, MAX98357, MAX98357 I2S 3W CLASS D AMPLIFIER

MAX98357 I2S 3W CLASS D AMPLIFIER

The MAX98357 Audio Decoder Module is suitable for Raspberry Pi. Accepts digital audio through the I2S interface, converts it to an analog output signal, and amplifies it to allow direct speaker connection.

MAX98357 Audio Decoder Module combines an I2S D / A converter with an audio amplifier on one board.

Due to the high efficiency of the amplifier, the MAX98357 Audio Decoder Module is particularly suitable for mobile and battery-powered projects.

The behavior can be changed using a resistor so that only L or R is output.

The MAX98357 Audio Decoder Module is delivered fully assembled and tested.

The delivery includes a pin header and a 2-pin terminal, which you can solder on demand.

Description

MAX98357 I2S 3W Class D Amplifier Interface Audio Decoder Module is a compact, filter less audio module that combines an I2S DAC and a high-efficiency Class D amplifier, allowing direct connection from digital controllers (like Raspberry Pi or ESP32) to speakers for up to 3.2 W output.

Features:

Filter less output—no need for bulky external LC filter due to spread-spectrum modulation scheme
Robust EMI and RF noise immunity
No need for Master Clock (MCLK), simplifying hardware design
Wide sample-rate support: 8kHz–96kHz
Delivered fully assembled and tested (for most module variants)
Ideal for battery-powered and portable audio applications due to minimal quiescent current and high efficiency

MAX98357 I2S 3W CLASS D AMPLIFIER

Output Power: Up to 3.2W @ 4Ω, 5V supply (1.8W @ 8Ω)
Operating Voltage: 2.7V to 5.5V (works with both 3.3V and 5V I2S levels)
Supported Inputs: I2S digital audio (Left/Right-Justified)
Selectable Gain: 3dB, 6dB, 9dB, 12dB, 15dB controlled by gain pin/input
Efficiency: Up to 92% (Class D)
THD+N: <0.01% (high fidelity, low noise)
Speaker Load: 3Ω to 8Ω supported
No MCLK Required: Simplifies microcontroller interfacing
Protections: Short-circuit and thermal protection
Size: ~14–21 mm x 14–20 mm x 3 mm, lightweight
Output Type: Mono (default mixes L+R, resistor configuration sets single channel)
Application Examples: Portable speakers, IoT voice output, direct interface with Raspberry Pi/ESP32/Arduino