INMP441 MEMS High Precision Omnidirectional Microphone Module I2S
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020
Great

INMP441 MEMS High Precision Omnidirectional Microphone Module I2S

Available:Out of Stock
  • Product SKU: KG1308
Wishlist
₹ 189 ₹ 249
Pre-order
Successful pre-order.Thanks for contacting us!
Secure

Specification

Description

INMP441 MEMS High Precision Omnidirectional Microphone Module (I2S)

The INMP441 is a high-performance, low-power, digital output omnidirectional MEMS microphone featuring a bottom-port acoustic design. It integrates a MEMS sensor, signal conditioning circuitry, ADC, anti-aliasing filter, power management, and an industry-standard 24-bit I2S interface into a single compact module.

Thanks to its I2S digital interface, the INMP441 can be directly connected to microcontrollers, DSPs, and processors such as the ESP32 without requiring an external audio codec. With a high signal-to-noise ratio (61 dBA), flat wideband frequency response, and excellent sensitivity, this microphone is ideal for near-field audio capture and high-definition sound applications.

Features

  • Digital I2S interface with high-precision 24-bit audio data
  • High signal-to-noise ratio of 61 dBA
  • High sensitivity of -26 dBFS
  • Stable and flat frequency response from 60 Hz to 15 kHz
  • Low power consumption (typical current 1.4 mA)
  • High power supply rejection ratio (PSR): -75 dBFS
  • Omnidirectional MEMS microphone
  • Ideal for direct connection to microcontrollers and DSPs

Interface Definition

  • SCK: Serial clock for I2S interface
  • WS: Word select (left/right channel selection)
  • L/R: Channel select (Low = Left, High = Right)
  • SD: Serial data output
  • VCC: Power input (1.8V – 3.3V)
  • GND: Ground

ESP32 Connection Reference

  • SCK → GPIO14
  • SD → GPIO32
  • WS → GPIO15
  • L/R → GND
  • GND → GND
  • VDD → 3.3V

Technical Details

  • Item Type: MEMS Microphone Module
  • Model: INMP441
  • Interface: Digital I2S
  • Data Resolution: 24-bit
  • Frequency Range: 60 Hz – 15 kHz
  • Signal-to-Noise Ratio: 61 dBA
  • Sensitivity: -26 dBFS
  • Current Consumption: 1.4 mA (typical)
  • Power Supply Rejection (PSR): -75 dBFS
  • Operating Voltage: 1.8V – 3.3V

Applications

  • Voice recognition systems
  • Audio recording and sound detection
  • ESP32 and IoT audio projects
  • Smart speakers and voice assistants
  • Speech processing and noise monitoring
  • Embedded audio applications

Physical Attributes

  • Compact PCB module design
  • Bottom-port MEMS microphone structure
  • Weight: 2g

Package Includes

  • 1 × INMP441 MEMS High Precision Omnidirectional Microphone Module (I2S)

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)