The SPH0641LM4H-1-T is a miniature, low-power silicon microphone from Knowles. It is a high-performance, omnidirectional microphone designed for a wide range of applications requiring accurate and reliable audio capture. This microphone is known for its small size, low current consumption, and excellent audio quality.

Applications

• Mobile Phones: Used for voice communication and recording in smartphones.
• Tablets: Enables voice input for various tablet applications.
• Wearable Devices: Integrated into smartwatches, fitness trackers, and other wearable gadgets for voice control and recording.
• Bluetooth Headsets: Provides clear voice input for hands-free communication.
• Voice Recorders: Used in portable voice recorders for high-quality audio capture.
• Hearing Aids: Employed in hearing aids for amplifying and processing sound.
• IoT Devices: Integrated into IoT devices for voice control and audio sensing.

Features

• Omnidirectional: Captures sound equally from all directions.
• Low Power Consumption: Minimizes battery drain in portable devices.
• Small Size: Enables integration into compact devices.
• High SNR: Provides excellent signal-to-noise ratio for clear audio capture.
• High AOP: Can handle high sound pressure levels without distortion.
• Reflow Solder Compatible: Suitable for automated assembly processes.

Benefits

• Clear Audio Capture: High SNR ensures clear and intelligible voice recording.
• Extended Battery Life: Low power consumption prolongs the operational time of battery-powered devices.
• Versatile Integration: Small size allows for easy integration into various devices.
• Reliable Performance: Robust design ensures reliable operation in demanding environments.
• Cost-Effective: Provides excellent performance at a competitive price.
• Automated Assembly: Reflow solder compatibility simplifies manufacturing processes.

Additional Details

The SPH0641LM4H-1-T microphone typically has a sensitivity of -42 dBV/Pa and a signal-to-noise ratio (SNR) of 64 dB. It operates on a supply voltage of 1.5 to 3.6 V and consumes very little current, typically less than 250 µA. The microphone is housed in a small surface-mount package, enabling easy integration into electronic devices. The Knowles SPH0641LM4H-1-T is designed to withstand reflow soldering temperatures, making it suitable for high-volume manufacturing. This microphone delivers reliable and high-quality audio capture in a wide range of applications, making it a popular choice for designers seeking a small, low-power, and high-performance audio solution.