STMicroelectronics IMP34DT05
The IMP34DT05 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.FEATURES
● 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 – SMD-compliant – EMI-shielded – ECOPACK, RoHS, and “Green” compliant
APPLICATIONS
● Anti-tampering devices● Vibration monitoring
● Audio-activated functions
● Predictive maintenance
● Noise cancelling
● Sound detection for alarm systems
● Human / machine voice interface
● Anti-theft systems
DESCRIPTION
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. DS12725 - Rev 4 - June 2021 For further information contact your local STMicroelectronics sales office. 1 Pin description Figure 1. Pin connections IMP34DT05 Pin description Pin # 1 2 3 4 5 (ground ring) LR CL K Vdd DOUT GND BOTTOM VIEW Table 1.