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WM7120A Datasheet(PDF) 12 Page - Wolfson Microelectronics plc

Part # WM7120A
Description  Top Port Analogue Silicon Microphone
Download  12 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM7120A Datasheet(HTML) 12 Page - Wolfson Microelectronics plc

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WM7120A
Pre-Production
w
PP, Rev 3.1, April 2012
12
REVISION HISTORY
DATE
REV
ORIGINATOR
CHANGES
02/05/11
2.0
JMacD
First release of AE variant
2.0
KC
Added the WM7120AE
Updated the features for WM7120AE
Electrical noise floor to 101dBV
Updated the frequency response curve, the THD curves,
Updated the +3dB frequency response to 9300Hz.
Updated WM7120AE frequency response performance, and sensitivity
performance
Updated the reel quantity to 4800
Remove the 20kohms test condition.
Modified the wording for 1uF and 20kohms to ensure 10Hz low frequency
cut off
2.0
JMacD
Package Diagram updated to DM058E
-
Tolerances adjusted and dimensions standardized
-
Updated tolerances for measurements G and J
06/05/11
2.0
JMacD/MR
Acoustic and Electrical Char: Acoustic Overload updated to 131.
10/05/11
2.0
MR
Updated the -3dB frequency response to 40Hz.
07/06/11
2.1
KC
Change on the pin configuration and top view.
01/07/11
2.1
JMacD/MR
Package Drawing update to reflect new pin numbering.
04/07/11
2.2
JMacD/MR
Order Code for Enhanced, 62Hz roll off updated to:
WM7120AIMSE/V
WM7120AIMSE/RV
11/10/11
2.3
JMacD
Package Diagram changed to DM100B.
09/09/11
3.0
KC
Added reference to WAN_0273.
Updated the interface CODEC to WM8994.
SNR updated to 57dB, Noise Floor to -99dBV and acoustic noise floor to
37 dB SPL.
20/02/12
3.1
KC/JMacD
Acoustic and Electrical Characteristics:
Sensitivity unit changed from dB to dBV. Updated the terminology 1.
Dynamic Range added. DR definition added


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