WM7121 datasheet(2/12 Pages) WOLFSON

2 / 12 page

WM7121

Preliminary Technical Data

PTD, Rev 2.0, October 2012

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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