ICS-43432

Microphones Overview

The ICS-43432 is a digital MEMS microphone featuring an I²S interface with 24-bit data precision. It provides a signal-to-noise ratio of 65 dBA and a sensitivity of -26 dBFS ±1 dB. The device operates on a 3.3 V supply with a current consumption of 1.0 mA. Its frequency response spans from 50 Hz to 20 kHz, supporting omnidirectional sound capture through a bottom port. The component measures 4 mm × 3 mm × 1 mm in a surface-mount package.

Microphones Feature Summary

• Digital I²S output eliminates the need for external audio codecs
• High signal-to-noise ratio enables clear audio capture
• Tight sensitivity tolerance supports array configurations without calibration
• Low power consumption suitable for battery-operated devices

Microphones Applications

• Wearable devices
• Smart televisions
• Teleconferencing systems
• Microphone arrays
• Security systems

Microphones Procurement Notes

Verify end-of-life status before procurement as the manufacturer has indicated obsolescence. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing system architectures requiring I²S interfaces. Review final production specifications against design requirements to avoid integration issues with discontinued components.

Microphones Selection Notes

Select this component for designs requiring direct digital connection to DSPs or microcontrollers. The integrated ADC and filters simplify circuit topology by removing analog codec requirements. Consider the small footprint for space-constrained applications. Evaluate the specific SNR and sensitivity metrics against acoustic environment demands.

Microphones Part Context

Manufactured by TDK InvenSense, a subsidiary of TDK Corporation specializing in MEMS sensor platforms. This product belongs to the digital microphone category designed for consumer electronics and IoT applications. The company focuses on motion sensing and audio solutions for mobile and wearable markets.

Microphones Replacement Considerations

ICS-43434 is a functionally compatible alternative offering similar electrical performance in a smaller package size.