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MP34DB01 Datasheet(PDF) 1 Page - STMicroelectronics |
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MP34DB01 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 15 page  January 2012 Doc ID 17924 Rev 5 1/15 1 MP34DB01 MEMS audio sensor omnidirectional digital microphone Features ■ Single supply voltage ■ Low power consumption ■ 120 dBSPL acoustic overload point ■ 62.6 dB signal-to-noise ratio ■ Omnidirectional sensitivity ■ –26 dBFS sensitivity ■ PDM single-bit output with option for stereo configuration ■ RHLGA package – Bottom-port design – SMD-compliant – EMI-shielded –ECOPACK®, RoHS and “Green” compliant Applications ■ Mobile terminals ■ Laptop and notebook computers ■ Portable media players ■ VoIP ■ Speech recognition ■ A/V eLearning devices ■ Gaming and virtual reality input devices ■ Digital still and video cameras ■ Antitheft systems Description The MP34DB01 is an ultra-compact, low-power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface with stereo operation capability. The sensing element, capable of detecting acoustic waves, is manufactured using a specialized silicon micromachining process dedicated to produce 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 MP34DB01 has an acoustic overload point of 120 dBSPL with a best on the market 62.6 dB signal-to-noise ratio and -26 dBFS sensitivity. The MP34DB01 is available in a bottom-port, SMD-compliant, EMI-shielded package and is guaranteed to operate over an extended temperature range from -30 °C to +85 °C. RHLGA 3x4x1 4LD Table 1. Device summary Part number Temperature range [°C] Package Packing MP34DB01 -30 to +85 RHLGA (3x4x1) mm 4LD Tray MP34DB01TR -30 to +85 RHLGA (3x4x1) mm 4LD Tape and reel www.st.com |
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