MAX98357 I2S 3W Class D Amplifier Breakout Interface DAC Decoder Module Filterless Audio Board For Raspberry Pi ESP32 I2S
KSH 700.00
In Stock
The MAX98357 is a highperformance I2S audio amplifier breakout board that delivers 3W mono output with exceptional audio quality. This module features an integrated digitaltoanalog converter (DAC) and a Class D amplifier, providing a filterless, singlechip solution for I2S audio applications. Perfect for Raspberry Pi, ESP32, and Arduino projects requiring high-quality sound output.
| Parameter | Value |
|---|---|
| Amplifier IC | MAX98357AETE+ |
| Output Power | 3.2W (5V, 4Ω) |
| Power Supply | 2.5V - 5.5V |
| Audio Input | I2S Digital |
| Sample Rate | 8kHz - 96kHz |
| Resolution | 16bit, 24bit, 32-bit |
| Efficiency | >90% (Class D) |
| THD+N | 0.06% (typical) |
| SNR | >90dB |
| Features | Filterless, click/pop suppression |
| Dimensions | ~20 x 15mm |
| Interface | I2S (BCK, LRCK, DIN) |
= Key Features =
Integrated DAC Builtin digitaltoanalog converter eliminates external components
Filterless Class D - No output filter required, saving space and cost
I2S Digital Input - Direct connection to I2S audio sources (Raspberry Pi, ESP32)
Wide Sample Rate - Supports 8kHz to 96kHz sample rates
Low Power Consumption - High efficiency for portable applications
Excellent Sound Quality - 0.06% THD+N for clear audio
Click/Pop Suppression - Smooth startup and shutdown
Compatible Voltage Levels - Works with 3.3V and 5V logic
| MAX98357 Pin | Raspberry Pi | ESP32 | Description |
|---|---|---|---|
| VIN | 5V | 5V | Power supply (2.5-5.5V) |
| GND | GND | GND | Ground |
| BCK | GPIO 18 | GPIO 26 | Bit Clock (I2S) |
| LRCK | GPIO 19 | GPIO 27 | Left/Right Clock (I2S) |
| DIN | GPIO 21 | GPIO 25 | Data Input (I2S) |
| GAIN | 3.3V | 3.3V | Gain selection (optional) |
| SD | 3.3V | 3.3V | Shutdown (active high) |
> For Raspberry Pi, connect VIN to 5V, GND to GND, and I2S pins to GPIO 18, 19, 21
| GAIN Pin | Gain (dB) | Output Voltage | Output Power (5V, 8Ω) |
|---|---|---|---|
| Floating | 3dB | 1.4Vrms | 0.25W |
| GND | 6dB | 2.0Vrms | 0.5W |
| VIN | 9dB | 2.8Vrms | 1.0W |
> Leave GAIN pin unconnected for default 3dB gain
The MAX98357 combines a DAC and a Class D amplifier in a single chip:
√ No external DAC or amplifier needed
√ Works with 3.3V and 5V logic
√ Wide sample rate range (8kHz-96kHz)
√ Automatic mode detection
√ Supports mono audio applications
√ Gain-selectable for volume control
## What's Included
The MAX98357 I2S 3W Class D Amplifier Module provides high-quality, efficient audio output for your Raspberry Pi, ESP32, and microcontroller projects. With its integrated DAC and filterless Class D amplifier, it's the perfect solution for adding sound to IoT, voice, and audio applications.
MAX98357 I2SAUDIO AMPLIFIER CLASSD RASPBERRYPI ESP32 ARDUINO AUDIO I2S DIY SPEAKER DAC #SOUNDMODULE New Best Seller MAX98357
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