Description

The IM73A135V01 is designed for applications which require a microphone with high SNR (low self-noise), low

distortion (high AOP), which is also IP57 robust to dust and water.

Best-in-class Signal to Noise Ratio (SNR) of 73dB(A) enables far field and low volume audio pick-up. The flat

frequency response ( 20Hz low-frequency roll-off) and tight manufacturing tolerance improve the performance

of multi-microphone array applications.

The high performance analog microphone ASIC contains an extremely low noise preamplifier and a high

performance differential output amplifier. Different power modes can be selected in order to suit specific

current consumption requirements.

Each IM73A135V01 microphone is calibrated with an advanced Infineon calibration algorithm, resulting in small

sensitivity tolerances (± 1dB).

Features

• Component level IP57 water and dust resistant

• Signal to noise ratio of 73dB(A) SNR

• Acoustic overload point at 135dBSPL

• Flat frequency response with low frequency roll off

at 20Hz

• Power optimized modes determined by VDD level

• Package dimensions: 4mm x 3mm x 1.2mm

• Differential output

• Omnidirectional pickup pattern