TDK InvenSense Expands Design Options With New SmartSound MEMS Microphones

TDK introduced three new MEMS microphones as part of the SmartSound family of products for mobile and consumer connected devices. The new TDK T5919 is a high performance PDM digital MEMS microphone and is the first with built in particle ingress filter (PIF) for harsh environments. The new T3903 is a high performance PDM digital MEMS microphone with very low power and wide dynamic range, while the also T4086 is an analog output MEMS microphone in a tiny package, ideal for very space constrained applications.

CUI Devices' Audio Group announced the addition of two new digital I2S output models to its comprehensive line of MEMS microphones. The bottom port CMM-3526D-261-I2S-TR and top port CMM-4030D-261-I2S-TR are housed in extremely compact, low profile packages measuring 3.50 x 2.65 x 0.98 mm and 4.00 x 3.00 x 1.25 mm, respectively. Thanks to their digital I2S interface, these MEMS microphones eliminate the need for a codec, allowing for the microphones to connect directly to digital signal processors and microcontrollers in an end application.

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.