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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