WM7121PE

2

Rev 4.1

TABLE OF CONTENTS

DESCRIPTION................................................................................................................ 1

FEATURES..................................................................................................................... 1

APPLICATIONS ............................................................................................................. 1

BLOCK DIAGRAM ......................................................................................................... 1

3D VIEW ......................................................................................................................... 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

APPLICATIONS INFORMATION ................................................................................... 7

RECOMMENDED EXTERNAL COMPONENTS........................................................................7

OPTIMISED SYSTEM RF DESIGN ...........................................................................................7

CONNECTION TO A CIRRUS CODEC .....................................................................................8

MATCHED MICROPHONE PAIRS ............................................................................................8

PCB LAND PATTERN AND PASTE STENCIL ..........................................................................9

PACKAGE DIMENSIONS............................................................................................. 10

IMPORTANT NOTICE .................................................................................................. 11

REVISION HISTORY .................................................................................................... 12