An omnidirectional MEMS microphone based on the INMP441 chip.
Specifications:
- Supply voltage: 1.8-3.3V DC
- Signal voltage: 1.8-3.3V
- Average current: ~1.4mA
- Chip: INMP441
- Frequency range: 60-15,000Hz
- Sensitivity: ~-26dBFS
- Communication: I2S
- PCB dimensions: 14 x 14mm
Pinout:
- SD: I2S data signal
- VDD: Supply voltage
- GND: Ground/min
- L/R: Left/Right channel selection (low = left channel, high = right channel)
- WS: I2S word select
- SCK: I2S clock signal
