MEMS analog and digital microphones Crystal-clear audio quality with the size, cost and volume production of MEMS sensors Microphones based on MEMS Benefits of technology offer an excellent t argeted applications mems microphones audio quality. They are less Mobile phones Enhanced performance susceptible to mechanical Laptops High stability of sensitivity after reflow vibrations, temperature Ver y stable unit-to-unit performance Phablets variations and electromagnetic Consolidated micromachining technology Smartphones interference compared to New applications enabled: stereo cap- Digital cameras and camcorders traditional electret microphones. ture, noise cancellation, beam forming Gaming The MEMS process makes these High shock resistance microphones the ideal stereo Portable media players solution wherever two perfectly Hands-free devices matched microphones are Tablets required. Hearing aids Headsets www.st.comdigital mems analog f eatures added value of digital mems microphones Benefits for customer microphones microphones immunity to rf noise and electromagnetic interference Easier application design Faster time to market (emi) analog signal conditioning Faster time to market, Easier application design not required BOM cost reduction Easy MEMS positioning on Allows audio enhancement integration for robust digital transmission application system. stereo capture, noise cancellation, beam Standard digital conditioning forming digital mems microphones sensitivity aop (dB current consumption part number top/bottom port package size (mm) supply voltage (V) snr (dB) (dB fs) spl) (a) 4.72x3.76x1.25 mp45dt02 Top 1.64 to 3.6 61 -26 120 650 (Plastic) 4.72x3.76x1.25 mp45dt02-m Top 1.64 to 3.6 61 -26 120 650 (Metal) mp34dt01 Top 3 x 4 x 1 (Plastic) 1.64 to 3.6 63 -26 120 600 mp34dt01-m Top 3 x 4 x 1 .06 (Metal) 1.64 to 3.6 61 -26 120 600 mp34dt02 Top 3 x 4 x 1.06 (Metal) 1.64 to 3.6 60 -26 120 600 mp34dB01 Bottom 3 x 4 x 1 (Plastic) 1.64 to 3.6 62.6 -26 120 650 mp34dB02 Bottom 3 x 4 x 1 (Metal) 1.64 to 3.6 62.6 -26 120 650 analog mems microphones package size supply voltage sensitivity (dB current part number top/bottom port snr (dB) aop (dB spl) (mm) (V) fs) consumption (a) 3.35x2.5x0.98 mp23aB02B Bottom 1.5 to 3.6 64 -38 125 250 (Metal) 3.76x2.95x1 mp33aB01 Bottom 1.5 to 3.6 63 -38 125 250 (Plastic) 3.76x2.95x1 mp33aB01h Bottom 1.5 to 3.6 66 -38 125 250 (Plastic Note: Bottom-port microphones are also available with metal cap option upon request. Evaluation boards are available. You can find all the appropriate documentation, such as application notes, user manuals, databriefs and gerber files at www.st.com/memsmics STMicroelectronics - December 2014 - Printed in United Kingdom - All rights reserved The STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies All other names are the property of their respective owners Order code: FLMEMS1214 For more information on ST products and solutions, visit www.st.com