TDK Corporation unveils ultra-high AOP analog MEMS microphone

  • Industry News
  • Aug 07,20
The analog MEMS microphone is equipped with high dynamic range, operates up to 105°C, and is designed for IoT and consumer devices.
TDK Corporation unveils ultra-high AOP analog MEMS microphone

TDK Corporation, a world leader in electronic solutions for the smart society has introduced the InvenSense ICS-40638 MEMS analog microphone. The ICS-40638 microphone has an ultra-high Acoustic Overload Point (AOP) of 138 dB Sound Pressure Level (SPL), exceptionally efficient 170 µA low power operation and high Signal to Noise Ratio (SNR) of 63 dB in a small 3.5*2.65*0.98 mm bottom port surface?mount package. The analog MEMS microphone is equipped with a high dynamic range, operates up to 105°C, and is designed for IoT and consumer devices.

The new ICS-40638 microphone is ideal for wearable and IoT applications, particularly in outdoor, industrial or harsh environments, where high temperature and high acoustic overload points present system design challenges. The ICS-40638 includes a MEMS microphone element, an impedance converter, and a differential output amplifier. Other high?performance specifications include a tight ±1 dB sensitivity tolerance and enhanced immunity to both radiated and conducted RF interference. The part is ideal for noise cancelling applications in challenging environments.

Kieran Harney, Managing Director, Audio Products, InvenSense, a TDK group company, said, “TDK has a strong presence in the wearable and IoT market segments and our full-line of MEMS microphones makes us the ideal partner to solve our customers’ audio challenges. The ICS-40638 with its ultra-high AOP and high temperature operation enables our partners to design acoustic listening systems that stand up to the loudest and noisiest environmental surroundings.”

The InvenSense ICS-40638 part and the ICS-40638 evaluation board (EVB) are now available from multiple distributors worldwide.

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