TDK Unveils New Ultra-High AOP Analog MEMS Microphone Ideal for Noisy Environments

TDK Corporation introduced the InvenSense ICS-40638 MEMS analog microphone, a new high-performance solution enabling clear audio capture in loud and noisy conditions, with an extended frequency response from 35 Hz to 20kHz. The ICS-40638 microphone offers 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 mm x 2.65 mm x 0.98 mm bottom port surface‐mount package.

The world’s first MEMS microphone designed for loud environments is here. Vesper, a developer of advanced piezoelectric sensors, has just introduced the VM2020, an ultra-high acoustic overload point (AOP) differential analog output piezoelectric MEMS microphone. This is the first consumer product-ready in mass production, able to work in extremely noisy environments without distortion. The VM2020 is available in a standard form factor and package, such as smart speakers.