STEVAL-STWINMAV1

STEVAL-STWINMAV1 is a analog microphone array expansion for the SensorTile wireless industrial node (STWIN) kit. This microphone array expansion adds advanced audio sensing capabilities to the STEVAL-STWINKT1B (and STEVAL-STWINKT1) SensorTile Wireless Industrial Node (STWIN) kit for high frequency vibration monitoring applications. The board includes four low-power, high signal-to-noise ratio (SNR) MP23ABS1 capacitive sensing microphones, supported by a very low drop voltage, low quiescent current and low-noise voltage regulator ideal for batter-powered applications such as STWIN. The expansion board is connected via a dedicated 12-pin connector to the core system board, which runs the STSW-STWINKT01 firmware with dedicated BSP drivers and application examples for you to test and develop vibration monitoring in the ultrasound frequency ranges.

• Analog microphone array expansion for STEVAL-STWINKT1B (and STEVALSTWINKT1)
• Connects to STWIN core system board through dedicated 12-pin connector
• 3V to 5.5V power supply input
• 4 mm square-shaped differential microphone array
• 4x MP23ABS1 high-performance, single-ended, analog, bottom-port MEMS microphones
• LDK130 300 mA low quiescent current very low noise LDO
• On-board audio-grade quad ADC
• Serial Audio Interface (SAI) digital output