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Product Detailed Parameters
- Description：DIGITAL MICROPHONE -26DB 1.6VDC
- Series：DMM
- Mfr：PUI Audio, Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：MEMS (Silicon)
- Output Type：Digital, PDM
- Direction：Omnidirectional
- Frequency Range：100 Hz ~ 10 kHz
- Sensitivity：-26dB ±1dB @ 94dB SPL
- S/N Ratio：65dB
- Impedance：-
- Voltage Range：1.62 V ~ 3.6 V
- Current - Supply：650 µA
- Port Location：Top
- Ratings：-
- Termination：Solder Pads
- Size / Dimension：0.138" L x 0.104" W (3.50mm x 2.65mm)
- Height (Max)：0.043" (1.08mm)
- Shape：Rectangular
- Grade：-
- Qualification：-
- Voltage - Rated：1.8 V
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Overview
The PUI Audio DMM-3526-4-B is a digital MEMS microphone featuring a PDM output interface. It operates at a supply voltage of 1.8 VDC with a current consumption of 650 uA. The device provides a sensitivity of -26 dBFS and a signal-to-noise ratio (SNR) of 65 dB. Its frequency response spans from 100 Hz to 10 kHz. The component measures 3.5 mm in length, 2.65 mm in width, and 1 mm in depth. It functions reliably within an operating temperature range of -40°C to +85°C.
Feature Summary
- Digital PDM output interface for direct integration with processors
- High signal-to-noise ratio of 65 dB for clear audio capture
- Low power consumption suitable for battery-operated devices
- Compact surface-mount package design
Applications
- Voice recognition systems
- Smart home voice assistants
- Mobile communication devices
Procurement Notes
Verify the specific suffix and revision code against the manufacturer's latest datasheet to ensure compatibility with your design requirements. Confirm that the ordering information matches the exact electrical specifications needed for your application. Always reference the official documentation for pinout and mechanical drawings before finalizing procurement decisions.
Selection Notes
Select this component when a digital PDM interface is required instead of analog or I2S outputs. Consider the 1.8 VDC supply voltage constraint and the specific 100 Hz to 10 kHz frequency range limitations. Ensure the physical dimensions fit the available PCB space and that the operating temperature range meets environmental conditions.
Part Context
This part belongs to the PUI Audio DMM series of digital MEMS microphones. The series offers various form factors and electrical characteristics tailored for different audio applications. The DMM-3526-4-B represents a specific variant optimized for compact designs requiring digital output capabilities.
Replacement Considerations
Check for other variants within the DMM series that may offer different frequency ranges or package sizes. Verify compatibility with existing circuit designs if substituting with similar digital MEMS microphones from other manufacturers.
