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WM7120AE Datasheet(PDF) 1 Page - Wolfson Microelectronics plc |
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WM7120AE Datasheet(HTML) 1 Page - Wolfson Microelectronics plc |
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1 / 12 page  w WM7120A,WM7120AE Top Port Analogue Silicon Microphone WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews Pre-Production, April 2012, Rev 3.1 Copyright 2012 Wolfson Microelectronics plc DESCRIPTION The WM7120A is a low-profile silicon analogue microphone. It offers high Signal to Noise Ratio (SNR) and low power consumption and is suited to a wide variety of consumer applications. The WM7120A incorporates Wolfson’s proprietary CMOS/MEMS membrane technology, offering high reliability and high performance in a miniature, low-profile package. The WM7120A is designed to withstand the high temperatures associated with automated flow solder assembly processes. (Note that conventional microphones can be damaged by this process.) The WM7120AE variant offers a tighter tolerance on the microphone sensitivity, giving reduced variation between parts. This removes the need for in-line production calibration of part-to-part microphone variations. FEATURES High SNR; selectable sensitivity tolerance options - WM7120A - SNR 57dB, Sensitivity +/-3dB - WM7120AE - SNR 57dB, Sensitivity +/-1dB Low supply current 140µA Low profile packaging Support for automated flow solder assembly Analogue output Top Port Package 1.5V to 3.7V supply 3.76mm x 2.95mm x 1.10mm Package APPLICATIONS Mobile phone handsets Portable media players Digital still cameras Digital video cameras Bluetooth headsets Portable navigation devices Portable games consoles BLOCK DIAGRAM |
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