MM034202-9

Microphones Overview

The MM034202-9 is an analog MEMS microphone manufactured by DB Unlimited. It features a rectangular silicon structure with dimensions of 3.10mm length, 2.50mm width, and a maximum height of 1.20mm. The device operates on a rated voltage of 2V with a supply current of 180µA. It provides an omnidirectional response within a frequency range of 100 Hz to 10 kHz. Key electrical specifications include a sensitivity of -42dB ±3dB and a signal-to-noise ratio of 57dB. The component utilizes solder pad termination for surface mount installation.

Microphones Feature Summary

• Omnidirectional acoustic design for uniform sound capture
• Silicon-based MEMS construction for durability
• Analog output interface for direct signal processing

Microphones Applications

• Consumer electronics audio input
• Voice recognition systems
• Portable communication devices

Microphones Procurement Notes

Verify the specific package variant (Cut Tape or Digi-Reel) against the ordering code suffix. Confirm that the 180µA supply current aligns with the target circuit's power budget. Ensure the 2V rated voltage matches the system logic levels. Check RoHS3 compliance status if required by regional regulations.

Microphones Selection Notes

Select this component when a compact form factor is required alongside moderate sensitivity. The 57dB SNR supports standard voice applications but may not suit high-fidelity recording. Compare the 100Hz lower frequency limit against requirements for low-frequency noise capture. Evaluate the 1.20mm height constraint against available PCB clearance.

Microphones Part Context

This part belongs to the Precise series of MEMS microphones from DB Unlimited. It shares the analog output architecture with other models in the MM03 series. The component represents a balance between size and performance for embedded audio sensing tasks.

Microphones Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.