SPH0641LU4H-1

Overview

The SPH0641LU4H-1 is a miniature, high-performance, low-power bottom-port silicon digital microphone featuring a single-bit PDM output. It utilizes SiSonic MEMS technology with an acoustic sensor, low noise input buffer, and sigma-delta modulator. The device supports multiple performance modes including Sleep, Low-Power, Standard Performance, and Ultrasonic Modes. Key specifications include a supply voltage range of 1.62 V to 3.6 V, a clock frequency range from 0 Hz to 4.8 MHz depending on mode, and a typical SNR of 64.3 dB.

Feature Summary

• Supports multiple performance modes including Sleep, Low-Power, Standard Performance, and Ultrasonic Modes
• Features RF shielding for enhanced immunity
• Offers ultrasonic support capabilities
• Utilizes Zero-Height Mic technology

Applications

• Cellphones
• Smart phones
• Laptop computers
• Digital still cameras
• Portable music recorders

Procurement Notes

Verify the specific manufacturer part number against official datasheets to ensure compatibility with system requirements. Confirm that the selected component matches the required package type and pin configuration. Check for any recent revisions or updates to the product specifications before finalizing procurement decisions.

Selection Notes

Consider the available performance modes when selecting this microphone for specific power constraints. Ensure the host system can support the required clock frequencies for the chosen operational mode. Verify mechanical integration requirements, particularly regarding the bottom port orientation and zero-height profile.

Part Context

This component belongs to the SiSonic family of digital microphones manufactured by Syntiant (formerly Knowles Electronics). It represents a specialized MEMS solution designed for portable electronic devices requiring wideband audio performance and robust RF immunity in a compact form factor.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.