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The IM72D128VV01 is an ultra-high-performance digital PDM MEMS microphone designed for applications requiring extremely high signal-to-noise ratio (low SNR) and low distortion (high AOP), as well as IP57-rated dust and water resistance.

Best-in-class signal-to-noise ratio (SNR) of 72dB(A) for far-field and low-volume audio pickup. Flat frequency response (20Hz low-frequency roll-off) and tight manufacturing tolerances improve performance in multi-microphone (array) applications.

The digital microphone ASIC includes an extremely low-noise preamplifier and a high-performance sigma-delta ADC. Different power modes can be selected to meet specific clock frequency and current consumption requirements.

Each IM72D128VV01 microphone is calibrated using advanced Infineon calibration algorithms, resulting in low sensitivity tolerances (± 1dB).

IM72D128VV01 Features

Component-rated IP57 water and dust resistant

Dynamic range 106 dB

Sound overload point of 128dBSPL

Signal-to-noise ratio of 72dB(A) SNR

Digital PDM output

Flat frequency response with low-frequency roll-off at 20Hz

Package size 4mm x 3mm x 1.2mm

Omni-directional pickup mode

Power-optimised mode determined by PDM clock frequency

IM72D128VV01 Technical Data

Product Category: MEMS Microphone

Series: MEMS

Sensitivity: - 36 dBFS

SNR - Signal to Noise Ratio: 71.5 dB

Frequency range: 380 kHz to 3.4 MHz

Operating supply voltage: 1.8 V

Minimum operating temperature: - 40 C

Maximum operating temperature: + 85 C

IM72D128VV01 Applications

Consumer electronics

Semiconductor solutions for home entertainment applications

Intelligent Buildings

Smart Conference Systems

Smart Speaker Design

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