MM20-33366-B116

Microphones Overview

The Knowles MM20-33366-B116 is an omnidirectional MEMS silicon microphone designed for analog audio applications. It operates within a supply voltage range of 0.9 V to 1.3 V and draws a typical current of 38 µA. The device features a sensitivity of -55 dB ±3 dB at 94 dB SPL and delivers a signal-to-noise ratio (SNR) of 67 dBA. Its frequency response spans from 100 Hz to 10 kHz, ensuring accurate capture of voice frequencies. The component utilizes solder pad termination for surface-mount integration.

Microphones Feature Summary

• Omnidirectional acoustic design for uniform sound pickup
• Low power consumption suitable for battery-operated devices
• Analog output interface for direct signal processing

Microphones Applications

• Voice recognition systems
• Mobile communication devices
• Hands-free telephony modules

Microphones Procurement Notes

Verify the specific suffix B116 against official datasheets to confirm package and tape-and-reel specifications. Ensure compatibility with the target operating voltage range of 0.9 V to 1.3 V during circuit design. Confirm RoHS compliance status through manufacturer documentation prior to procurement.

Microphones Selection Notes

Select this component when low voltage operation and compact form factor are required. The analog output necessitates appropriate amplification stages in the signal chain. Consider the 67 dBA SNR for environments requiring moderate noise immunity. Verify footprint compatibility with PCB layout constraints.

Microphones Part Context

This part belongs to the Knowles MM20 series of MEMS microphones. The series is characterized by small footprints and low power profiles. The MM20-33366 variant specifically targets analog applications, distinguishing it from digital I2S counterparts in the same family. It serves as a standard solution for consumer electronics audio input requirements.

Microphones Replacement Considerations

Cross-reference with MM20-33366-000 for potential pin-compatible alternatives. Verify that substitute parts maintain the same analog output type and voltage range. Check sensitivity tolerances to ensure acoustic performance consistency.