SPH0641LM4H-1-8

The SPH0641LM4H-1-8 is a low-power, digital MEMS (Microelectromechanical Systems) microphone designed for use in various audio applications, including smartphones, tablets, and other portable devices. It features a small form factor and high sensitivity, allowing for clear sound capture in compact designs.
Key specifications include a unidirectional pickup pattern, a wide frequency response range (typically 100 Hz to 10 kHz), and a low noise floor, making it suitable for voice recognition and audio recording. The microphone operates using I2S (Integrated Inter-IC Sound) or PDM (Pulse Density Modulation) output, facilitating integration with digital signal processors.
With a supply voltage of 1.8V, the SPH0641LM4H-1-8 is energy-efficient, enhancing battery life in portable devices. Its robust design and excellent performance characteristics make it ideal for modern consumer electronics, IoT devices, and wearable technology.

The SPH0641LM4H-1-8 is a high-performance MEMS microphone designed for various audio applications. Key features include:
1. Compact Size: Its small package (3.76mm x 2.95mm) facilitates integration into compact devices.
2. Omnidirectional Polar Pattern: Captures sound from all directions, making it suitable for voice recognition and audio capture.
3. High Sensitivity: Offers a sensitivity of -26 dBFS/Pa, ensuring clear audio capture.
4. Wide Frequency Response: Operates effectively across a frequency range of 20 Hz to 20 kHz.
5. Low Power Consumption: Designed for battery-operated devices with low power requirements.
6. Digital Output: Features a PDM (Pulse Density Modulation) output interface for easy integration with digital systems.
7. Low Noise: Provides a low equivalent input noise level, enhancing audio clarity.
8. Robust Performance: Suitable for various environments, with good resistance to humidity and temperature variations.
These attributes make it ideal for applications in smartphones, tablets, wearables, and smart home devices.

The SPH0641LM4H-1-8 is packaged in a small, surface-mount package type known as LGA (Land Grid Array). This compact design facilitates easy integration into various electronic devices, providing space efficiency and reliable performance.

The SPH0641LM4H-1-8 is a digital MEMS microphone with a pin count of 4. The functions of its pins are as follows:
1. VDD: Power supply pin (typically 1.8V to 3.6V).
2. GND: Ground pin.
3. SCK: Serial Clock pin used for data synchronization.
4. SDO: Serial Data Out pin where digital audio data is output.
This microphone is designed for high-performance audio applications, featuring low noise and high signal-to-noise ratio (SNR), making it suitable for devices such as smartphones, tablets, and voice recognition systems.

The SPH0641LM4H-1-8 is manufactured by Knowles Electronics, a subsidiary of Knowles Corporation. Knowles is a leading global supplier of micro-acoustic microphones, and they specialize in advanced audio solutions and sensing technologies. The company focuses on producing high-performance components for consumer electronics, including smartphones, wearables, and IoT devices. Their products are designed to enhance audio capture and processing, ensuring superior sound quality and performance.

The SPH0641LM4H-1-8 is a MEMS microphone widely used in applications such as smartphones, tablets, wearables, smart home devices, and voice recognition systems. Its features make it suitable for voice capture, noise cancellation, and audio recording in consumer electronics, IoT devices, and robotics, enhancing user experience through high-quality sound input and voice command functionality.

Equivalent products to the SPH0641LM4H-1-8 chip include the InvenSense ICS-43434 and the Knowles SPH0645LM4H-1. These MEMS microphones offer similar specifications, such as low power consumption, compact size, and digital output. Always verify compatibility based on specific application requirements.