The WM7120AIMS/RV is a compact, high-performance silicon microphone manufactured by Cirrus Logic Inc. This microphone is designed for use in a wide range of applications requiring clear and accurate audio capture. Utilizing MEMS (Micro-Electro-Mechanical Systems) technology, it offers a small form factor combined with excellent acoustic performance.

Applications:

• Mobile phones
• Tablet computers
• Laptop computers
• Bluetooth headsets
• Digital cameras

Features:

• High Signal-to-Noise Ratio (SNR) for superior audio clarity
• Low Total Harmonic Distortion (THD) ensuring accurate sound reproduction
• Small form factor MEMS microphone for compact designs
• Omnidirectional polar pattern capturing sound from all directions
• Low power consumption for extended battery life in portable devices
• Digital Pulse Density Modulation (PDM) output for easy integration with digital processors
• RoHS compliant, adhering to environmental standards

Benefits:

• Enhanced voice recognition accuracy due to high SNR
• Improved audio quality for recordings and voice communications
• Reduced background noise for clearer sound capture
• Longer battery life in portable applications due to low power consumption
• Smaller device size due to the compact MEMS design
• Easy integration with digital audio processing systems using the PDM output
• Reliable performance in various environmental conditions

Technical Specifications:

The WM7120AIMS/RV offers a high SNR, typically around 65 dB, providing excellent audio clarity even in noisy environments. It maintains a low THD, typically less than 1%, ensuring accurate sound reproduction. The microphone operates on a low supply voltage, generally between 1.8V and 3.3V, making it suitable for battery-powered applications. Its omnidirectional polar pattern allows it to capture sound uniformly from all directions. The digital PDM output simplifies the connection to digital signal processors (DSPs), reducing the need for external analog-to-digital converters. The device is housed in a small, surface-mount package, facilitating easy integration into compact electronic devices.

Cirrus Logic's WM7120AIMS/RV is a reliable and efficient microphone solution designed for applications demanding high-quality audio capture in a compact size. Its combination of low power consumption, high SNR, and digital output makes it an excellent choice for modern portable devices and audio recording equipment.