Description
Features of INMP441 MEMS Microphone Module – I2S Interface, 24-Bit
- I2S digital audio interface
- 24-bit data output
- Omnidirectional MEMS microphone
- Low power consumption
- Bottom port design
Specifications of INMP441 MEMS Microphone Module – I2S Interface, 24-Bit
- Type: Sound Sensor
- Microphone type: MEMS
- Microphone model: INMP441
- Interface: I2S
- Digital I2S interface with high precision 24-bit data
- Frequency response: 100 Hz to 20 kHz
- Frequency response: 60 Hz to 15 kHz
- Sensitivity: -26 dBFS (0 dBFS = 94 dB SPL)
- Sensitivity: -26 dBFS
- Signal-to-noise ratio: 63 dB
- Signal-to-noise ratio: 61 dBA
- Operating voltage: 1.8 V to 3.6 V
- Input power: 1.8 V to 3.3 V
- Current consumption: 500 microamps
- Low current consumption: 1.4 mA
- PSR: -75 dBFS
- Dimensions: 5 x 3.76 x 1 mm
- Pins: SCK
- Pins: WS
- Pins: L/R
- Pins: VCC
- Pins: GND
- SCK: Serial data clock for I2S interface
- WS: Serial data word selection for I2S interface
- L/R: Left/Right channel selection
- VCC: Input power, 1.8 V to 3.3 V
- GND: Power ground
- VDD: 3v3 Power
- VDD: Do not use 5V
- GND: GND
- L/R: GND Left channel or right channel
- WS: 22 Left right clock
- SCK: 26 Serial clock
- SD: 21 Serial data
How to Use INMP441 MEMS Microphone Module – I2S Interface, 24-Bit
- Connect the power and ground pins.
- Wire the I2S signals SCK, WS, and SD.
- Set the L/R pin as required.
- Use an I2S-capable processor or microcontroller.
More Info
- Supports direct connection to DSPs and microcontrollers.
- Compatible with ESP32 I2S connection examples.
- Available pin definitions include SCK, WS, L/R, VCC, GND, VDD, and SD.
| Interface Type | Digital |
|---|---|
| Operating Voltage (V) | 1.8 to 3.3V |
| Operating Current (mA) | 0.6 to 1.4 mA |
| Operating Temp (°C) | -40 to 85 |
| Dimensions (mm) | 5 x 3.76 x 1 |
| Audio Function | Microphone |
| Input Types | MEMS |
| Bluetooth Ver. | No |
| Output Type | Digital |
| Channels | 1-channel |
| Chipset | INMP441 |
