The WM7230IMSE, manufactured by Wolfson Microelectronics (now Cirrus Logic), is a compact, high-performance silicon microphone designed for use in a wide range of applications where small size and excellent audio quality are critical. It leverages advanced MEMS (Micro-Electro-Mechanical Systems) technology to deliver exceptional sensitivity and low noise performance in a miniature package.

Applications

• Mobile Phones
• Tablets
• Laptops
• Bluetooth Headsets
• Digital Cameras

Features

• High SNR (Signal-to-Noise Ratio)
• Small form factor
• Low power consumption
• Omnidirectional polar pattern
• High Acoustic Overload Point (AOP)
• Surface-mount packaging

Benefits

• Clear Audio Capture: The high SNR ensures clean and intelligible audio capture, even in noisy environments.
• Space-Saving Design: The small form factor allows for easy integration into compact devices without compromising audio quality.
• Extended Battery Life: Low power consumption minimizes the impact on battery life in portable devices.
• Consistent Performance: The omnidirectional polar pattern provides uniform sensitivity from all directions, ensuring consistent audio capture.
• Robust Performance: The high AOP ensures that the microphone can handle loud sounds without distortion.
• Simplified Assembly: Surface-mount packaging facilitates easy and efficient assembly onto printed circuit boards.

The WM7230IMSE utilizes a MEMS transducer to convert sound waves into electrical signals. The microphone's integrated preamplifier boosts the signal and provides a low output impedance, making it compatible with a wide range of audio codecs and processing circuits. Its high acoustic overload point allows it to capture loud sounds without clipping or distortion, making it suitable for use in noisy environments. The omnidirectional polar pattern ensures that the microphone picks up sound equally from all directions, providing a natural and consistent audio capture experience.

This microphone is commonly used in mobile phones, tablets, and laptops for voice recording, voice communication, and audio capture. Its small size, low power consumption, and high performance make it an ideal choice for these applications. The WM7230IMSE’s robust design and consistent performance ensure reliable operation in a variety of environments. Cirrus Logic continues to support this type of microphone with ongoing development and manufacturing, further solidifying its position as a leading solution for portable audio applications.