ICS-40800

Microphones Overview

The ICS-40800 is a dual-port analog MEMS microphone from the TDK InvenSense SmartSound series, designed for high-fidelity audio capture. It features a sensitivity of -38 dBV and a signal-to-noise ratio (SNR) of 70 dBA. The device operates within a frequency range of 80 Hz to 20 kHz with an impedance of 338 Ohms. It requires a supply voltage between 1.62 V and 3.63 V, drawing a typical operating current of 155 uA. The component is housed in a compact LGA-4 package measuring 4 mm x 3 mm x 0.97 mm, suitable for surface-mount installation.

Microphones Feature Summary

• Dual-port acoustic design for enhanced noise rejection
• Analog output interface for direct integration
• High dynamic range capability for clear audio capture

Microphones Applications

• Voice command interfaces
• Acoustic event detection systems
• Consumer audio recording devices

Microphones Procurement Notes

Verify end-of-life status before procurement as the manufacturer indicates this part is being phased out. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing analog front-end circuits given the specific impedance and sensitivity parameters. Review latest datasheets for any final production changes or replacement recommendations.

Microphones Selection Notes

Select this component for applications requiring analog output microphones with high signal-to-noise ratios. The low power consumption supports battery-operated devices. Consider the dual-port configuration for improved environmental noise isolation. Verify that the system architecture can accommodate analog signals rather than digital PDM outputs offered by other SmartSound models.

Microphones Part Context

Part of the TDK InvenSense SmartSound MEMS microphone family, which integrates advanced CMOS technology with MEMS elements. This series targets always-on audio sensing and edge AI applications. The ICS-40800 represents the analog output variant, contrasting with digital PDM or I2S options available in the broader portfolio.

Microphones Replacement Considerations

Check for official successor parts from TDK InvenSense due to the end-of-life status. Evaluate digital alternatives like the T5838 if system architecture allows conversion to PDM interfaces. Ensure pinout and electrical characteristics match when selecting substitutes.