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Soldered MAX98357 - stereo I2S audio amplifier 2×3W
ID: 1208357
zł45.90
Tax included
zł37.32 tax excl.
Stereo Class D audio amplifier based on two MAX98357A ICs with a digital I2S input. Delivers up to 3.2W per channel into 4Ω at 5V, supports 8–96kHz sample rates and selectable 6, 9, 12 or 15dB gain. Soldered 333355
Description
The device Stereo I2S Audio Amplifier MAX98357 by Soldered uses two MAX98357A Class D amplifier ICs. Each IC handles one audio channel, providing full stereo output. The digital I2S interface transfers audio data directly from the microcontroller to the amplifier, while the DAC integrated into the MAX98357A eliminates the need for a separate digital-to-analog converter. Maximum output power is 3.2W with a 4Ω load and 5V supply.
The module supports sampling rates from 8kHz to 96kHz. Communication uses the BCLK, DIN and LRCLK lines, with no MCLK signal required. Onboard jumpers allow the gain to be set to 6dB, 9dB, 12dB or 15dB. Speaker outputs for the left and right channels are equipped with convenient terminals, and the board can be powered from 3.3V or 5V. The module is suitable for audio players, IoT devices, alarm systems and projects based on ESP32, Raspberry Pi and other platforms equipped with an I2S interface.
Features
- Amplifier ICs: 2 × MAX98357A
- Type: stereo Class D audio amplifier
- Number of channels: 2
- Audio interface: I2S
- Output power: up to 3.2W at 4Ω and 5V
- Sampling rate: 8–96kHz
- Gain: 6dB, 9dB, 12dB or 15dB
- Efficiency: up to 92% at RL = 8Ω and POUT = 1W
- THD+N: 0.013% at 1kHz
- Output noise: 22.8µVRMS at 15dB gain
- Quiescent current: 2.4mA
- Interface lines: BCLK, DIN, LRCLK
- No MCLK signal required
- Speaker outputs: left and right channel
- Board supply voltage: 3.3V or 5V
- Speaker connection terminals
- Gain adjustment via jumpers
- Click-and-Pop noise reduction
- Breadboard-compatible design
- Arduino and MicroPython support
- Manufacturer: Soldered Electronics
- Product code: 333355
1208357
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