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WM7121 Datasheet(PDF) 2 Page - Wolfson Microelectronics plc

Part # WM7121
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

WM7121 Datasheet(HTML) 2 Page - Wolfson Microelectronics plc

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WM7121
Preliminary Technical Data
w
PTD, Rev 2.0, October 2012
2
TABLE OF CONTENTS
DESCRIPTION....................................................................................................... 1 
FEATURES............................................................................................................ 1 
APPLICATIONS..................................................................................................... 1 
BLOCK DIAGRAM ................................................................................................ 1 
TABLE OF CONTENTS......................................................................................... 2 
PIN CONFIGURATION .......................................................................................... 3 
PIN DESCRIPTION................................................................................................ 3 
ORDERING INFORMATION.................................................................................. 3 
ABSOLUTE MAXIMUM RATINGS ........................................................................ 4 
IMPORTANT ASSEMBLY GUIDELINES .............................................................. 4 
RECOMMENDED OPERATING CONDITIONS..................................................... 4 
ACOUSTIC AND ELECTRICAL CHARACTERISTICS ......................................... 5 
TERMINOLOGY............................................................................................................... 5 
TYPICAL PERFORMANCE ................................................................................... 6 
FREQUENCY RESPONSE .............................................................................................. 6 
THD RATIO ...................................................................................................................... 6 
APPLICATIONS INFORMATION .......................................................................... 7 
RECOMMENDED EXTERNAL COMPONENTS .............................................................. 7 
OPTIMISED SYSTEM RF DESIGN ................................................................................. 7 
CONNECTION TO A WOLFSON AUDIO CODEC .......................................................... 8 
MATCHED MICROPHONE PAIRS .................................................................................. 9 
RECOMMENDED PCB LAND PATTERNS ..................................................................... 9 
PACKAGE DIMENSIONS.................................................................................... 10 
IMPORTANT NOTICE ......................................................................................... 11 
ADDRESS: ..................................................................................................................... 11 
REVISION HISTORY ........................................................................................... 12 


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