INMP441 MEMS I2S Digital Microphone Sensor Module
Product Overview
The INMP441 MEMS I2S Digital Microphone Sensor Module is a high-performance digital microphone designed for clear audio capture using the I2S interface. Its compact MEMS design delivers high signal quality, making it ideal for voice recognition, smart devices, IoT, robotics, and embedded audio applications.
Description
The INMP441 MEMS I2S Digital Microphone Sensor Module is a compact digital audio input module featuring the INMP441 MEMS microphone with a built-in 24-bit ADC and I2S digital output. Unlike analog microphones, it transmits digital audio directly, reducing noise and improving signal quality for embedded applications.
The module supports low-power operation and delivers high sensitivity with an excellent signal-to-noise ratio, making it suitable for voice-controlled systems, audio recording, sound detection, speech recognition, smart assistants, IoT devices, and embedded development. Its standard I2S interface allows seamless integration with a wide range of compatible microcontroller and processor platforms.
Designed for developers, students, and engineers, the INMP441 provides reliable digital audio performance in compact electronic projects requiring accurate voice and sound acquisition.
Key Features
- INMP441 digital MEMS microphone
- I2S digital audio interface
- Built-in 24-bit ADC
- High signal-to-noise ratio (SNR)
- Low power consumption
- Compact module design
- High sensitivity audio capture
- Stable digital audio output
- Noise-resistant digital transmission
- Easy integration with compatible controllers
- Suitable for embedded audio applications
- Reliable voice capture performance
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Digital MEMS Microphone Module |
| Model | INMP441 |
| Microphone Type | MEMS |
| Audio Output | I2S Digital |
| ADC Resolution | 24-bit |
| Operating Voltage | 1.8V–3.3V |
| Interface | I2S |
| Signal-to-Noise Ratio | 61 dBA (Typical) |
| Sensitivity | -26 dBFS (Typical) |
| Frequency Response | 60 Hz – 15 kHz |
| Directionality | Omnidirectional |
| Operating Temperature | -40°C to +85°C |
Product Attributes
| Attribute | Value |
|---|---|
| Digital Output | Yes |
| I2S Interface | Yes |
| MEMS Technology | Yes |
| Built-in ADC | Yes |
| 24-bit Audio | Yes |
| Low Power | Yes |
| High Sensitivity | Yes |
| Omnidirectional | Yes |
| Compact Design | Yes |
| Embedded Applications | Yes |
Pin Details
| Pin | Description |
|---|---|
| VDD | Power Supply (1.8V–3.3V) |
| GND | Ground |
| SCK | I2S Serial Clock |
| WS | Word Select (Left/Right Clock) |
| SD | Serial Data Output |
| L/R | Left or Right Channel Selection |
Compatibility
Compatible with:
- ESP32 Development Boards
- Raspberry Pi
- STM32 Development Boards
- Arduino Boards with I2S Support
- RP2040 Development Boards
- I2S Audio Systems
- Embedded Linux Platforms
- Digital Audio Processing Projects
Applications
- Voice Recognition Systems
- Smart Home Devices
- AI Voice Projects
- Audio Recording
- Speech Recognition
- IoT Devices
- Robotics
- Digital Sound Monitoring
- Embedded Audio Systems
- Educational Projects
Package Includes
- 1 × INMP441 MEMS I2S Digital Microphone Sensor Module
Buy in Pakistan
Buy the INMP441 MEMS I2S Digital Microphone Sensor Module from Chip.pk for high-quality digital audio capture in embedded and IoT projects. It is ideal for voice recognition, sound acquisition, and AI applications, with secure packaging and fast nationwide delivery across Pakistan.
Why Choose Chip.pk?
- Genuine quality electronic modules
- Quality-tested before dispatch
- Competitive prices
- Fast nationwide delivery across Pakistan
- Secure packaging
- Trusted supplier of embedded electronics
- Technical support for development projects
- Reliable customer service and after-sales support
FAQs
1. What is the INMP441 MEMS I2S Digital Microphone Sensor Module?
The INMP441 MEMS I2S Digital Microphone Sensor Module is a compact digital microphone that captures high-quality audio using the I2S digital interface. It is suitable for voice recognition, audio recording, and embedded audio applications.
2. What interface does the INMP441 use?
The module uses the I2S (Inter-IC Sound) digital audio interface, enabling direct communication with compatible microcontrollers and processors.
3. Which development boards are compatible with this module?
The INMP441 is compatible with:
- ESP32 Development Boards
- Raspberry Pi
- STM32 Development Boards
- RP2040 Boards
- Arduino boards with I2S support
- Other controllers supporting the I2S protocol
4. What operating voltage does the INMP441 support?
The module operates from 1.8V to 3.3V DC. Ensure the supply voltage matches the module's specifications.
5. Is this a digital or analog microphone?
The INMP441 is a digital MEMS microphone with an integrated 24-bit ADC and I2S digital output. It does not provide an analog audio output.
6. Can I use the INMP441 for voice recognition projects?
Yes. The module is widely used in voice recognition, speech processing, AI assistants, smart speakers, and IoT applications due to its clear digital audio output.
7. Does the module support stereo audio?
Each INMP441 module outputs a single audio channel. Two modules can be configured for left and right channels to create a stereo audio setup.
8. What are the common applications of the INMP441?
Typical applications include:
- Voice Recognition
- Speech Detection
- Audio Recording
- Smart Home Devices
- AI Assistants
- Robotics
- IoT Projects
- Embedded Audio Systems
- Sound Monitoring
- Educational Projects
9. Does the INMP441 require an external ADC?
No. The module includes a built-in 24-bit Analog-to-Digital Converter (ADC), providing digital audio directly through the I2S interface.
10. Is the INMP441 suitable for battery-powered devices?
Yes. Its low-power operation makes it suitable for portable and battery-powered embedded applications.
11. Where can I buy the INMP441 MEMS I2S Digital Microphone Sensor Module in Pakistan?
You can purchase the INMP441 MEMS I2S Digital Microphone Sensor Module from Chip.pk with secure packaging and fast nationwide delivery across Pakistan.
12. Where can I buy the INMP441 MEMS I2S Digital Microphone Sensor Module in Lahore?
Customers in Lahore can order the INMP441 MEMS I2S Digital Microphone Sensor Module from Chip.pk with fast local delivery and dependable customer support.