INMP441 MEMS HIGH PRECISION OMNIDIRECTIONAL DIGITAL MICROPHONE MODULE I2S

The INMP441 is a high-performance, low-power, digital output, omnidirectional MEMS microphone with a bottom port. The complete INMP441 solution consists of a MEMS sensor, signal conditioning, analog to digital converter, anti-aliasing filter, power management, and industry-standard 24-bit I2S interface.

The I2S interface allows the INMP441 to be directly connected to digital processors such as DSPs and microcontrollers without the need for an audio codec for use in the system. The INMP441 has a high signal-to-noise ratio and is an excellent choice for near-field applications. The INMP441 has a flat wideband frequency response that results in a high definition of natural sound.

Key Features of INMP441 MEMS Omnidirectional Microphone Module:

• • The INMP441 MEMS Omnidirectional Microphone Module offers the following key features:
  • Omnidirectional Pickup: Captures sound from all directions.
  • High Signal-to-Noise Ratio (SNR): Provides clear and accurate audio capture.
  • Digital I2S Interface: Simplifies connection to microcontrollers and DSPs.
  • Low Power Consumption: Ideal for battery-operated devices.
  • Compact Design: Small form factor for easy integration.
  • Wide Frequency Response: Captures a broad range of audio frequencies.

Technical Specifications of INMP441 MEMS Omnidirectional Microphone Module:

• • Microphone Type: MEMS Omnidirectional
  • Interface: I2S
  • Frequency Response: 60Hz to 15kHz
  • Signal-to-Noise Ratio (SNR): 61dB
  • Sensitivity: -26dBFS
  • Operating Voltage: 1.8V to 3.3V
  • Current Consumption: 1.4mA (typical)
  • Dimensions: 15mm x 10mm x 2mm

Mechanical Specifications of INMP441 MEMS Omnidirectional Microphone Module:

• • Package Type: PCB module
  • Material: FR4 PCB with copper traces
  • Connectors: Pin headers for I2S and power connections
  • Weight: Lightweight design suitable for mobile applications

Schematic Diagram, Connection, Wiring, and Pinout of INMP441 MEMS Omnidirectional Microphone Module:

• • Pin Configuration:
  • 1. VCC: Power supply (1.8V to 3.3V)
  • 2. GND: Ground
  • 3. WS: Word select (I2S)
  • 4. SCK: Serial clock (I2S)
  • 5. SD: Serial data output (I2S)
  • Connection: Connect VCC and GND to the power supply, WS, SCK, and SD to the corresponding I2S pins of the microcontroller.
  • Wiring: Ensure proper wiring for the I2S interface and power connections.

Datasheet of INMP441 MEMS Omnidirectional Microphone Module:

• • For detailed technical specifications and electrical characteristics, refer to the INMP441 datasheet.

Applications of INMP441 MEMS Omnidirectional Microphone Module:

• • Voice Recognition: Used in voice-activated systems and smart assistants.
  • Audio Recording: Suitable for digital audio recorders and smartphones.
  • Wearable Devices: Integrated into smartwatches and fitness trackers for voice commands.
  • Hearing Aids: Provides clear audio input for hearing assistance devices.

Equivalent of INMP441 MEMS Omnidirectional Microphone Module:

• • SPH0645LM4H: MEMS microphone with similar specifications and I2S interface.
  • ADMP441: Another MEMS microphone option with digital I2S output.

Keywords for INMP441 MEMS Omnidirectional Microphone Module:

• • INMP441 Microphone
  • MEMS Microphone
  • Omnidirectional Microphone
  • I2S Microphone
  • Digital Microphone

Package Includes:

• • 1 X INMP441 mems high precision omnidirectional digital microphone module i2s