The Knowles SPU0409HE5H-PB-7 is a miniature silicon microphone designed for high-performance audio capture in a variety of applications. This microphone is part of Knowles' SiSonic™ microphone family, known for their small size, low power consumption, and robust performance.

Applications

• Mobile Phones: Used for voice communication and audio recording.
• Tablets: Integrated for voice input and multimedia recording.
• Bluetooth Headsets: Enables clear voice transmission for hands-free communication.
• Wearable Devices: Employed in smartwatches and fitness trackers for voice control and ambient sound detection.
• Voice-Controlled Devices: Used in smart speakers and home automation systems for accurate voice command recognition.
• Hearing Aids: Applied in hearing aids and assistive listening devices to capture and amplify sound.

Features

• Small Size: Compact design allows for integration into space-constrained devices.
• Low Power Consumption: Minimizes battery drain, extending the operational life of portable devices.
• High Signal-to-Noise Ratio (SNR): Delivers clear audio capture with minimal background noise.
• Omnidirectional Polar Pattern: Captures sound equally from all directions, providing consistent audio pickup.
• Digital Output: Provides a digital PDM (Pulse Density Modulation) output for direct connection to digital signal processors.
• High Acoustic Overload Point (AOP): Handles loud sounds without distortion, ensuring clear audio even in noisy environments.
• RoHS Compliant: Environmentally friendly, adhering to Restriction of Hazardous Substances standards.

Benefits

• Enhanced Audio Quality: High SNR ensures clear and intelligible voice and audio recordings.
• Extended Battery Life: Low power consumption contributes to longer battery life in portable devices.
• Versatile Integration: Small size and digital output simplify integration into a wide range of products.
• Reliable Performance: Robust design and high AOP ensure consistent performance in various environments.
• Improved Voice Recognition: Accurate sound capture enhances the performance of voice-controlled applications.

Additional Details

The SPU0409HE5H-PB-7 features a sensitivity of -26 dBFS ±3 dB and operates within a supply voltage range of 1.6 V to 3.6 V. Its digital PDM output is compatible with most audio codecs and digital signal processors. The microphone is designed to withstand reflow soldering processes, simplifying manufacturing. This microphone excels in applications where clear, reliable audio capture is paramount, such as in mobile communications, wearable technology, and voice-controlled devices. Its compact size and low power requirements make it an ideal choice for portable and battery-powered applications.