IMP34DT05TR

IMP34DT05TR is a MEMS audio sensor omnidirectional digital microphone for industrial applications. This 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. It is a low-distortion digital microphone with a 64dB signal-to-noise ratio and –26dBFS ±3dB sensitivity. Typical applications are anti-tampering devices, vibration monitoring, audio-activated functions, predictive maintenance, noise cancelling, sound detection for alarm systems, human / machine voice interface, anti-theft systems.

• Single supply voltage, low power consumption
• AOP = 122.5 dBSPL, 64dB signal-to-noise ratio
• Omnidirectional sensitivity, -26 dBFS ±3 dB sensitivity
• Temperature rating range from -40 to +85°C
• HCLGA 4LD package
• Supply voltage is 1.6 to 3.6V (Vdd = 1.8V, clock = 2.4MHz, T = 25°C)
• Short-circuit current is 10mA maximum (Vdd = 1.8V, clock = 2.4MHz, T = 25°C)
• Signal-to-noise ratio is 64dB(A) typ (A-weighted at 1KHz, 94dB SPL, Vdd=1.8V, clock=2.4MHz, T=25°C)
• Input clock frequency is 3.25MHz maximum (Vdd = 1.8V, clock = 2.4MHz, T = 25°C)