WM8595 datasheet(3/82 Pages) WOLFSON

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Production Data

WM8595

PD, Rev 4.2, January 2011

TABLE OF CONTENTS

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

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

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

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

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

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

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

RECOMMENDED OPERATING CONDITIONS .....................................................7

SUPPLY CURRENT CONSUMPTION ...................................................................7

ELECTRICAL CHARACTERISTICS ......................................................................8

TERMINOLOGY .......................................................................................................... 10

MASTER CLOCK TIMING ........................................................................................... 11

RESET

¯ ¯¯¯ ¯¯ TIMING ........................................................................................................... 11

DIGITAL AUDIO INTERFACE TIMING – SLAVE MODE............................................. 12

DIGITAL AUDIO INTERFACE TIMING – MASTER MODE.......................................... 13

CONTROL INTERFACE TIMING – 2-WIRE MODE .................................................... 14

CONTROL INTERFACE TIMING – 3-WIRE MODE .................................................... 15

POWER ON RESET (POR) ........................................................................................ 16

DEVICE DESCRIPTION.......................................................................................17

INTRODUCTION ......................................................................................................... 17

CONTROL INTERFACE.............................................................................................. 18

2-WIRE (SM-BUS COMPATIBLE) SERIAL CONTROL INTERFACE MODE .............. 18

3-WIRE (SPI COMPATIBLE) SERIAL CONTROL INTERFACE MODE ...................... 20

DIGITAL AUDIO DATA FORMATS ............................................................................. 21

DIGITAL AUDIO INTERFACE ..................................................................................... 26

DIGITAL AUDIO DATA SAMPLING RATES................................................................ 28

DAC FEATURES......................................................................................................... 29

ANALOGUE OUTPUT VOLUME CONTROL............................................................... 32

ADC FEATURES......................................................................................................... 36

DIGITAL ROUTING CONTROL................................................................................... 40

POP AND CLICK PERFORMANCE ............................................................................ 46

GLOBAL ENABLE CONTROL..................................................................................... 48

EMERGENCY POWER DOWN................................................................................... 49

DIGITAL FILTER CHARACTERISTICS ...............................................................74

APPLICATIONS INFORMATION .........................................................................78

RECOMMENDED EXTERNAL COMPONENTS.......................................................... 78

RECOMMENDED ANALOGUE LOW PASS FILTER .................................................. 79

RELEVANT APPLICATION NOTES............................................................................ 79

PACKAGE DIMENSIONS ....................................................................................80

IMPORTANT NOTICE ..........................................................................................81

ADDRESS ................................................................................................................... 81

REVISION HISTORY............................................................................................82

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