IM68A130AXTMA1

IM68A130A Datasheet AEC-Q103 qualified high performance analog XENSIV™ MEMS microphone Features • • • • •   Automotive qualification Flat frequency response down to 10Hz for best ANC performance Close sensitivity and phase matching for optimum beam forming Extended availability to match automotive design cycles Analog single-ended output Potential applications • • • • • •   Active noise cancellation / Road noise cancellation (ANC/RNC) Hands free calling Emergency call Voice control Siren detection Road condition detection Product validation Qualified for automotive applications. Product validation according to AEC-Q103-003.   Description The device is designed for applications where low self-noise (high SNR), wide dynamic range, low distortions and a high acoustic overload point is required. The low cut-off frequency (LFRO) makes it a well suited device for active noise cancelling (ANC) applications. Infineon's MEMS technology is based on a miniaturized microphone design and results in high linearity of the output signal within a high dynamic range. With its low equivalent noise floor the microphone is no longer the limiting factor in the audio signal chain and enables higher performance of voice recognition algorithms. The analog microphone ASIC contains an extremely low-noise preamplifier. The tight manufacturing tolerance, combined with the fact that each device is calibrated with an advanced Infineon calibration algorithm, results in small sensitivity and phase matching tolerances. This makes it well suited for beam forming arrays and multi-microphone applications.   Table 1 Parameter SNR Product summary Value Customer benefit 68 dB(A) Improved speech quality and higher speech intelligibility THD 1% 116 dBSPL Clear speech up to high SPL levels AOP (THD 10%) 130 dBSPL High dynamic range and high wind-noise robustness LFRO TA Table 2