DMM-4326-T-WP-R

Microphones Overview

The PUI Audio DMM-4326-T-WP-R is a digital MEMS microphone featuring an omnidirectional acoustic port and bottom-facing solder pads. It operates on a supply voltage range of 1.6 VDC to 3.6 VDC, with a typical operating point at 1.8 VDC. The device delivers a sensitivity of -26 dB ±1 dB and supports a frequency response from 20 Hz to 15 kHz or 18 kHz depending on specific configuration variants. It utilizes Pulse Density Modulation (PDM) output and is housed in a compact 4 mm x 3 mm x 1 mm rectangular surface-mount package.

Microphones Feature Summary

• Omnidirectional acoustic design for uniform sound capture
• Digital PDM output interface for direct connection to processors
• Low voltage operation compatible with portable battery-powered systems
• Waterproof construction with IP57 rating for environmental protection

Microphones Applications

• Voice recognition modules requiring high-fidelity audio input
• Smart home devices needing robust environmental resistance
• Wearable technology constrained by size and power limits
• IoT sensors integrating voice command capabilities

Microphones Procurement Notes

Verify the specific suffix variant when ordering, as frequency response specifications may vary between 15 kHz and 18 kHz models within the same base part number family. Confirm that the bottom-pad orientation matches your PCB footprint design. Ensure supply voltage rails remain within the 1.6 VDC to 3.6 VDC operational window to maintain signal integrity and prevent device damage.

Microphones Selection Notes

Select this component for applications demanding a balance between low power consumption and wide bandwidth audio capture. The waterproof feature distinguishes it from standard MEMS microphones, making it suitable for harsh environments. Consider the PDM interface requirements of your host processor to ensure compatibility without additional analog-to-digital conversion stages.

Microphones Part Context

This part belongs to the PUI Audio DMM series of premium, high-fidelity MEMS wide-band microphones. The series covers the entire audio band up to 18 kHz, targeting consumer electronics and industrial IoT markets. The DMM-4326-T-WP-R specifically integrates waterproofing capabilities into the standard digital MEMS form factor.

Microphones Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical parameters before considering alternative manufacturers.