MEMS analog and digital microphones crystal-clear audio quality with the size, cost and volume production of MEMS sensors www.st.com microphones based on MEMS technology offer an excellent audio quality. they are less susceptible to mechanical vibrations, temperature variations and electromagnetic interference compared to traditional electret microphones. the MEMS process makes these microphones the ideal stereo solution wherever two perfectly matched microphones are required. benefits of MEMS microphones ? enhanced performance ? high stability of sensitivity after refow ? very stable unit-to-unit performance ? consolidated micromachining technology ? new applications enabled: stereo cap- ture, noise cancellation, beam forming ? high shock resistance t argeted applications ? mobile phones ? laptops ? phablets ? smartphones ? digital cameras and camcorders ? gaming ? portable media players ? hands-free devices ? tablets ? hearing aids ? headsets
d igital MEMS microphones p art number t op/bottom port p ackage size (mm) supply voltage (v) snr (db) sensitivity (db fs) aop (db spl) current consumption (a) mp45dt02 top 4.72x3.76x1.25 (plastic) 1.64 to 3.6 61 -26 120 650 mp45dt02-m top 4.72x3.76x1.25 (metal) 1.64 to 3.6 61 -26 120 650 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 evaluation boards are available. you can fnd all the appropriate documentation, such as application notes, user manuals, databriefs and gerber fles at www.st.com/MEMSmics f eatures digital MEMS microphones analog microphones a dded value of digital MEMS microphones benefts for customer immunity to rf noise and electromagnetic interference (emi) ? easier application design faster time to market analog signal conditioning not required ? easier application design faster time to market, bom cost reduction robust digital transmission ? easy MEMS positioning on application system. standard digital conditioning allows audio enhancement integration for stereo capture, noise cancellation, beam forming analog MEMS microphones p art number t op/bottom port p ackage size (mm) supply voltage (v) snr (db) sensitivity (db fs) aop (db spl) current consumption (a) mp23ab02b bottom 3.35x2.5x0.98 (metal) 1.5 to 3.6 64 -38 125 250 mp33ab01 bottom 3.76x2.95x1 (plastic) 1.5 to 3.6 63 -38 125 250 mp33ab01h bottom 3.76x2.95x1 (plastic 1.5 to 3.6 66 -38 125 250 note: bottom-port microphones are also available with metal cap option upon request. ? 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 for more information on st products and solutions, visit www.st.com order code: flMEMS1214
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