SmartSound™ MEMS Microphones

TDK Corporation introduces two MEMS microphones (T5919 and T3903) as part of the SmartSound family of products for mobile, IoT, and other consumer devices. These high-performance microphones push the boundaries of microphone acoustic performance, providing advanced feature sets with very low power in small package footprints. The SmartSound family of MEMS microphones from TDK are designed for a multitude of applications in a variety of dynamic environments. TDK's high acoustic overload point (AOP), high signal-to-noise ratio (SNR), and wide dynamic range microphones are ideal for environments that shift from very quiet to very loud, such as far-field voice pickup barge-in for smart speaker applications.

T5919: PDM digital output microphone with built-in particle ingress filter (PIF)

The T5919 is a multi-mode, low noise digital MEMS microphone in a small 3.5 mm x 2.65 mm x 0.98 mm bottom port package. The PIF filter is embedded in the microphone package, providing protection against particles and moisture. The T5919 includes multiple modes of operation: high quality, low-power (always on), and sleep. This microphone boasts high SNR in all operational modes. It maintains 135 dB sound pressure level (SPL) AOP in high-quality mode and 120 dB SPL AOP in low-power mode.

T3903: low power wide dynamic range PDM MEMS microphone

The low power T3903 enables the transition of microphones from analog output to digital output to support always on applications in smartphones, tablets, remote controls, smart TVs, Bluetooth® headsets, and digital still/video cameras. The T3903 is a multi-mode, low noise, bottom ported MEMS microphone with -37 dBFS sensitivity, 66 dBA SNR, and 133 dB AOP in a 3.5 mm x 2.65 mm x 0.98 mm package.

Features

• Compatible with Sn/Pb and Pb-free solder processes
• RoHS/WEEE compliant