WM8523 datasheet(3/46 Pages) CIRRUS

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Production Data

WM8523

PD, Rev 4.2, August 2013

TABLE OF CONTENTS

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

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

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

BLOCK DIAGRAM ............................................................................................................. 2

TABLE OF CONTENTS...................................................................................................... 3

PIN CONFIGURATION ....................................................................................................... 4

ORDERING INFORMATION............................................................................................... 4

PIN DESCRIPTION............................................................................................................. 5

ABSOLUTE MAXIMUM RATINGS ..................................................................................... 6

RECOMMENDED OPERATING CONDITIONS.................................................................. 6

ELECTRICAL CHARACTERISTICS .................................................................................. 7

TERMINOLOGY ............................................................................................................................ 7

POWER CONSUMPTION MEASUREMENTS .............................................................................. 8

SIGNAL TIMING REQUIREMENTS ................................................................................... 9

SYSTEM CLOCK TIMING ............................................................................................................. 9

AUDIO INTERFACE TIMING – MASTER MODE.......................................................................... 9

AUDIO INTERFACE TIMING – SLAVE MODE ........................................................................... 10

CONTROL INTERFACE TIMING – I2C MODE............................................................................ 11

CONTROL INTERFACE TIMING – SPI MODE........................................................................... 12

POWER ON RESET CIRCUIT .................................................................................................... 13

DEVICE DESCRIPTION ................................................................................................... 15

INTRODUCTION ......................................................................................................................... 15

SOFTWARE CONTROL INTERFACE......................................................................................... 15

DIGITAL AUDIO INTERFACE ..................................................................................................... 19

DIGITAL AUDIO INTERFACE CONTROL................................................................................... 22

DIGITAL AUDIO DATA SAMPLING RATES ............................................................................... 24

DAC FEATURES ......................................................................................................................... 25

HARDWARE CONTROL INTERFACE ........................................................................................ 30

POWER DOMAINS ..................................................................................................................... 32

REGISTER MAP ............................................................................................................... 33

REGISTER BITS BY ADDRESS ................................................................................................. 34

DIGITAL FILTER CHARACTERISTICS ........................................................................... 38

DAC FILTER RESPONSES ........................................................................................................ 39

DIGITAL DE-EMPHASIS CHARACTERISTICS .......................................................................... 40

APPLICATIONS INFORMATION ..................................................................................... 41

RECOMMENDED EXTERNAL COMPONENTS ......................................................................... 41

RECOMMENDED PCB LAYOUT ................................................................................................ 42

RECOMMENDED ANALOGUE LOW PASS FILTER.................................................................. 43

RELEVANT APPLICATION NOTES............................................................................................ 43

PACKAGE DIMENSIONS................................................................................................. 44

IMPORTANT NOTICE ...................................................................................................... 45

ADDRESS ................................................................................................................................... 45

REVISION HISTORY ........................................................................................................ 46

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