{"id":1533,"date":"2010-11-22T10:01:29","date_gmt":"2010-11-22T09:01:29","guid":{"rendered":"http:\/\/www.gsm-modem.de\/M2M\/?p=1533"},"modified":"2010-11-21T14:02:11","modified_gmt":"2010-11-21T13:02:11","slug":"mp45dt01-digital-microphone","status":"publish","type":"post","link":"http:\/\/www.gsm-modem.de\/M2M\/m2m-componets\/mp45dt01-digital-microphone\/","title":{"rendered":"MP45DT01: Digital microphone for people tracker, antitheft systems and wireless video cameras"},"content":{"rendered":"

Digital microphone to deliver crystal-clear audio and to eliminate the “GSM\u00c2\u00a0 noise” in your M2M application<\/h2>\n
\"mp45dt01<\/a>

MP45DT01 digital microphone to eliminate noise in M2M applications<\/p><\/div>\n

The MP45DT01 MEMS, digital-output microphone enables advancements in sound quality by providing omni-directional sensitivity to detect and filter out background noise. Further more on its digital link to the GSM, GPRS, UMTS, 3G or 4G\u00c2\u00a0 module the antenna can not interfere. Sound quality can be further improved by incorporating multiple microphones in one device.\u00c2\u00a0 A people tracker for Alzheimer patients or kids can hold microphones on top and back side of the device. Such digtial microphones meet price points set by the traditional electret condenser microphones while boasting superior reliability and robustness. The MP45DT01 uses sensor technology from OMRON that is inherently less susceptible to mechanical vibration, temperature variations, and EMI<\/p>\n

The MP45DT01 is a compact low-power microphone built up with a sensing element and an IC interface with stereo operation capability.<\/p>\n

The sensing element, capable of detecting acoustic waves, is manufactured using a specialized silicon micro-machining process to
\nproduce audio sensors.<\/p>\n

\"mp45dt01-digital-microphone-pins\"<\/a>

MP45DT01 digital microphone pins<\/p><\/div>\n

The IC interface is manufactured using a CMOS process that allows to design a dedicated circuit able to provide a digital signal to the external
\nworld in PDM format.<\/p>\n

The MP45DT01 has an acoustic overload point of 120 dBSPL with 58 dB signal to noise ratio.<\/p>\n

The MP45DT01 is available in SMD compliant package and it is guaranteed to operate over an extended temperature range from -30 \u00c2\u00b0C to +85 \u00c2\u00b0C.<\/p>\n

\"MP45TD01<\/a>

MP45TD01 digital microphone schematic diagram<\/p><\/div>\n

Digital microphone MP45DT01 as a glance<\/h2>\n