SPM0204HE5

Overview

The SPM0204HE5 is a digital MEMS microphone manufactured by Syntiant. It features a bottom acoustic port and utilizes a PDM interface for data transmission. The device operates at a supply voltage of 1.8V. Key electrical specifications include a signal-to-noise ratio (SNR) of 64dB, a sound pressure level (SPL) capability of 120dB, and a sensitivity of -26 +/-1dBV. The frequency response begins at 45Hz, and the unit offers a power supply rejection ratio (PSRR) of 55dB. Power consumption is specified at 235µA in low-power mode and 620µA in standard mode.

Feature Summary

• Digital output via Pulse Density Modulation (PDM) interface
• Bottom acoustic port design for flexible PCB integration
• Low power operation with selectable power modes

Applications

• Voice recognition systems
• Smart home devices
• Mobile communication equipment

Procurement Notes

Verify the specific ordering suffix to ensure the correct package type and tape-and-reel configuration match your assembly requirements. Confirm that the 1.8V operating voltage aligns with your system's power domain. Ensure the bottom-port orientation is compatible with your acoustic enclosure design to maintain the specified SNR and sensitivity performance.

Selection Notes

Select this component when a digital MEMS microphone with a bottom port is required for space-constrained designs. Consider the 64dB SNR and 120dB SPL limits for your acoustic environment. Evaluate the 235µA low-power mode against system battery life requirements compared to the standard 620µA mode. Verify compatibility with your host processor's PDM interface timing and voltage levels.

Part Context

This part belongs to the SISONIC series of digital MEMS microphones produced by Syntiant. These components are designed for high-performance audio capture in consumer electronics. The series typically offers various port configurations and sensitivity options to suit different application needs while maintaining a compact form factor suitable for modern mobile and IoT devices.

Replacement Considerations

Consult official Syntiant documentation for direct pin-compatible or functionally equivalent alternatives within the SISONIC portfolio. Verify that any substitute maintains the same PDM interface protocol, 1.8V supply requirement, and bottom-port acoustic characteristics.