Description of INMP441 Omnidirectional Microphone Module INMP441 Omnidirectional Microphone Module The INMP441 is a high-performance, omnidirectional digital microphone module designed for exceptional audio fidelity. Featuring a low-power, high-sensitivity MEMS microphone with an I2S (Inter-IC Sound) interface, it is the perfect choice for voice recognition, audio recording, and real-time sound processing applications. Key Features High-Definition Sound – Captures crystal-clear audio with a flat broadband frequency response and an impressive signal-to-noise ratio. Flexible Channel Output – Outputs audio to the left channel at low level and the right channel at high level, offering versatile application options. Seamless Compatibility & Easy Integration – Designed with a user-friendly pin configuration, ensuring hassle-free installation across various electronic systems. Advanced MEMS Microphone – Integrates a MEMS sensor, signal conditioning, ADC, anti-aliasing filter, power management, and I2S interface, enabling superior audio capture. High-Performance Digital Interface – Boasts a 24-bit digital I2S output, delivering high-resolution audio data with exceptional stability. Technical Specifications Feature Specification Microphone Type MEMS (Micro-Electro-Mechanical System) Directionality Omnidirectional Interface I2S (Inter-IC Sound) Operating Voltage 1.8V – 3.3V Current Consumption < 1.4 mA Signal-to-Noise Ratio (SNR) 61 dB Frequency Response 60 Hz – 15 kHz Sensitivity -26 dBFS ±1 dB Package Type PCB module with solderable pads Applications Voice Recognition Systems – Powers AI voice assistants and smart home devices with precision. Audio Recording & Streaming – Enables high-fidelity audio capture for both professional and personal use. Noise Detection & Analysis – Perfect for environmental monitoring and industrial applications. IoT & Wearable Devices – Optimized for low-power audio sensing and real-time processing. Robotics & Automation – Facilitates intuitive human-machine interaction through voice commands. Pin Configuration Pin Name Description VDD Power Supply (1.8V – 3.3V) GND Ground L/R Left/Right Channel Selection WS Word Select (I2S) SCK Serial Clock (I2S) SD Serial Data Output (I2S) Packaging Details INMP441 Omnidirectional Microphone Module Attention Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, please contact us to determine if further actions may be taken. Need Help? Our engineers are available to assist you. If you have any queries, please leave a comment below or call 09678110110 from 09:00 am to 08:00 pm (7 days a week). You can also reach us via Live Chat or Facebook Inbox. Where to Buy in Bangladesh? The INMP441 Omnidirectional Microphone Module available at TechShopBD, a trusted supplier of Robotics & Electronics in Bangladesh. Visit the TechShopBD office or order online to enjoy swift delivery across the country. Why Should You Buy Products from TechShopBD? There are many reasons to shop at TechShopBD Reliability: We ensure that all our products are of the highest quality and come with Warranty and Replacement service Easy Policies: If you encounter any issues, our quick and hassle-free replacement policy ensures your work continues without interruptions. Customer Support: Our customer support team is always available to ensure you have the best shopping experience. Buying from TechShopBD means a safe, hassle-free, and cost-effective experience!