MP34DT01TR STMicroelectronics

MP34DT01-M MEMS audio sensor omnidirectional digital microphone Datasheet - production data VoIP Speech recognition A/V eLearning devices Gaming and virtual reality input devices Digital still and video cameras Antitheft systems Description The MP34DT01-M is an ultra-compact, low- HCLGA (3 x 4 x 1.06 4LD) power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface. Features The sensing element, capable of detecting acoustic waves, is manufactured using a Single supply voltage specialized silicon micromachining process Low power consumption dedicated to produce audio sensors. 120 dBSPL acoustic overload point The IC interface is manufactured using a CMOS process that allows designing a dedicated circuit 61 dB signal-to-noise ratio able to provide a digital signal externally in PDM Omnidirectional sensitivity format. 26 dBFS sensitivity The MP34DT01-M has an acoustic overload point PDM output of 120 dBSPL with a 61 dB signal-to-noise ratio HCLGA package and 26 dBFS sensitivity. Top-port design The MP34DT01-M is available in a top-port, SMD- SMD-compliant compliant, EMI-shielded package and is EMI-shielded guaranteed to operate over an extended temperature range from -40 C to +85 C. ECOPACK , RoHS, and Green compliant Applications Mobile terminals Laptop and notebook computers Portable media players Table 1. Device summary Order codes Temperature range C Package Packing MP34DT01-M Tray -40 to +85 HCLGA (3 x 4 x 1.06) mm 4LD MP34DT01TR-M Tape and reel September 2014 DocID026514 Rev 3 1/17 This is information on a product in full production. www.st.comContents MP34DT01-M Contents 1 Pin description . 3 2 Acoustic and electrical specifications 4 2.1 Acoustic and electrical characteristics 4 2.2 Frequency response 5 2.3 Timing characteristics . 6 3 Application recommendations . 7 4 Sensing element 9 5 Absolute maximum ratings 10 6 Functionality 11 6.1 L/R channel selection .11 7 Package mechanical data 12 8 Carrier tape mechanical specifications . 14 9 Process recommendations 15 10 Revision history . 16 2/17 DocID026514 Rev 3