Infineon XENSIV™ MEMS Microphone IM67D128B

IM67D128B is an ultra-low power digital XENSIV™ MEMS microphone, designed for applications which require long battery life and environmental robustness in an exceptionally small package. With a Signal-to-Noise Ratio (SNR) of 67 dB(A) and low corner frequency of 10 Hz the microphone enables a clear audio experience without compromising on battery life. Enabled by a revolutionary digital microphone ASIC, the IM67D128B balances performance in a very small package with low current consumption of 540 µA.

Key features

• Low current consumption in high performance mode (540µA)
• Ultra-low current consumption in low power mode (170µA)
• Signal-to-noise ratio (SNR) of 67dB(A)
• Acoustic overload point at 128dBSPL
• Flat frequency response with low frequency roll-off at 10Hz
• Component level IP57 dust and water resistant
• Package dimensions: 3mm x 2mm x 0.98mm
• Enhanced RF shielding
• Digital PDM output
• Bottom port

Applications

• Active Noise Cancellation (ANC): headphones and earphones
• Smartphones and mobile devices
• Hearing enhancement devices
• Voice User Interface (VUI): e.g., smart speaker, home automation and IOT devices
• Power constrained applications