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.
Digital I2S MEMS microphone breakout covering ~50 Hz to 15 kHz for general audio recording and detection without an analog output stage.
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.
Power and data ground.
I2S bit clock, also called data clock or clock. Driven by the I2S main device to tell the microphone when to transmit data.
I2S data output from the microphone.
I2S left/right clock, also known as WS word select. Low selects left-channel transmission, high selects right-channel transmission.
Channel-select pin. Default low transmits left-channel mono; connect to high logic voltage for right-channel transmission.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| 3V | power | 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. | 1.6V to 3.6V | |
| GND | ground | Power and data ground. | 0V | |
| BCLK | signal | I2S bit clock, also called data clock or clock. Driven by the I2S main device to tell the microphone when to transmit data. | ||
| DOUT | signal | I2S data output from the microphone. | ||
| LRCLK | signal | I2S left/right clock, also known as WS word select. Low selects left-channel transmission, high selects right-channel transmission. | ||
| SEL | signal | Channel-select pin. Default low transmits left-channel mono; connect to high logic voltage for right-channel transmission. |
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.
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