ICS-41351

Microphones Overview

The ICS-41351 is a digital MEMS microphone featuring a top-port PDM output and LGA-5 package. It operates on a supply voltage of 1.65 V to 3.63 V with a typical current consumption of 600 uA. The device provides a sensitivity of -26 dB ±1 dB at 94 dB SPL and achieves a signal-to-noise ratio of 65 dBA. Its frequency range spans from 50 Hz to 20 kHz, supporting an acoustic overload point of 120 dB SPL. The component measures 3.5 mm x 2.65 mm x 0.98 mm and functions within a temperature range of -40 C to +85 C.

Microphones Feature Summary

• Multi-mode operation including Low Power, Standard, and Sleep states for optimized energy management
• High signal-to-noise ratio performance with high acoustic overload point capability
• Time-multiplexed PDM interface allowing dual microphone data transmission on a single line

Microphones Applications

• Voice command interfaces in consumer electronics
• Acoustic event detection systems
• Always-on audio sensing applications

Microphones Procurement Notes

Verify the End-of-Life (EOL) status before procurement planning. Confirm that existing inventory or last-time buys align with long-term production schedules. Ensure design-in decisions account for potential obsolescence and transition requirements to alternative components.

Microphones Selection Notes

Select this component for designs requiring low-power digital audio capture with compact form factors. Evaluate compatibility with host processors supporting time-multiplexed PDM inputs. Consider the specific power modes required for always-on versus active listening scenarios.

Microphones Part Context

Part of the TDK InvenSense ICS series of digital microphones. Designed for integration into mobile and IoT devices requiring high-fidelity audio input. Manufactured using CMOS technology integrated with MEMS elements for robust acoustic performance.

Microphones Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the EOL status.