STMicroelectronics - IMP34DT05 MEMS Audio Sensor Microphone
The IMP34DT05 from STMicroelectronicsn is an ultra-compact, low-power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface.
The sensing element, capable of detecting acoustic waves, is manufactured using a specialized silicon micromachining process dedicated to producing audio sensors.
The IC interface is manufactured using a CMOS process that allows designing a dedicated circuit able to provide a digital signal externally in PDM format.
The IMP34DT05 is a low-distortion digital microphone with a 64 dB signal-to-noise ratio and –26 dBFS ±3 dB sensitivity.
The IMP34DT05 is available in a top-port, SMD-compliant, EMI-shielded package and is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.
- Single supply voltage
- Low power consumption
- AOP = 122.5 dBSPL
- 64 dB signal-to-noise ratio
- Omnidirectional sensitivity
- –26 dBFS ±3 dB sensitivity
- PDM output
- HCLGA package
- Top-port design
- ECOPACK, RoHS, and “Green” compliant
- Anti-tampering devices
- Vibration monitoring
- Audio-activated functions
- Predictive maintenance
- Noise cancelling
- Sound detection for alarm systems
- Human / machine voice interface
- Anti-theft systems
Product evaluation tool
The STEVAL-MIC003V1 microphone coupon board based on the IMP34DT05 digital MEMS is designed to be used in conjunction with the X-NUCLEO-CCA02M1 expansion board; it is able to export the four additional PDMs for any user application require