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PDM MEMS Microphone
AdafruitSAMD21
A breakout board for a PDM MEMS microphone, using I2S interface on SAMD21 microcontroller.
In stock
Specifications
2- Operating Voltage
- 1.8-3.3V (not tested at 1.8V)
- Logic Level
- I2S
Pinout
5Low source legibility.The original manufacturer datasheet for this part was difficult to read, so this pinout may be incomplete or imperfect. Always confirm against the specific manufacturer’s datasheet before wiring.
| Pin | Name | Functions | Notes |
|---|---|---|---|
| 3V | power | POWER | PDM chip power input |
| GND | ground | GND | Power and data ground reference |
| SEL | channel_select | — | Left/Right channel select |
| CLK | clock | I2C | PDM clock in, 1-3 MHz square wave required |
| DAT | data | I2C | PDM data out |
Interactive pinout
Highlight:
SAMD21
Click a pin to copy its name · tap a tag above to spotlight a bus.