MEMS microphones for consumer devices and industry

Infineon has introduced three MEMS microphones to its portfolio. IM73A135 is an analogue microphone with a differential output. It has a signal-to-noise ratio of 73dB(A), -38dBV sensitivity and a 135dB SPL (sound pressure level) acoustic overload point (AOP). Packaging is 4 x 3 x 1.2mm IM72D128 is its digital counterpart in the same package with a PDM (pulse ...

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