I2S MEMS Microphone Breakout - SPH0645LM4H
Digital I2S MEMS microphone breakout covering ~50 Hz to 15 kHz for general audio recording and detection without an analog output stage.
Pinout
- 3V
Power input for the microphone breakout. Adafruit Learn states it can be powered from 1.6V to 3.6V and the logic level must match.
Type · powerVoltage · 1.6V to 3.6V - GND
Power and data ground.
Type · groundVoltage · 0V - BCLK
I2S bit clock, also called data clock or clock. Driven by the I2S main device to tell the microphone when to transmit data.
Type · signal - DOUT
I2S data output from the microphone.
Type · signal - LRCLK
I2S left/right clock, also known as WS word select. Low selects left-channel transmission, high selects right-channel transmission.
Type · signal - SEL
Start wiring
I2S · Analog · 3.3 – 5 V · Breakout
Adafruit/Pimoroni list the electret microphone amplifier as a MAX4466-based board with 2.4–5 V DC supply, rail-to-rail analog output and …
Module pins: 3V, GND, BCLK, DOUT, LRCLK, SEL. Schematik maps them to your board in the app.
Microphones
17 other optionsMAX4466 and MAX9814 electret preamp breakouts for analog audio, I2S MEMS mics (ICS-43434, SPH0645LM4H, INMP441) for digital audio, PDM breakouts, ReSpeaker arrays for far-field pickup, and an LM386 sound detector.
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