WM8581_07 datasheet(3/100 Pages) WOLFSON

3 / 100 page

Production Data

WM8581

PD Rev 4.0 April 2007

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

MULTI-FUNCTION PINS .......................................................................................................................................... 6

ABSOLUTE MAXIMUM RATINGS .............................................................................................................. 8

RECOMMENDED OPERATING CONDITIONS .......................................................................................... 9

ELECTRICAL CHARACTERISTICS............................................................................................................ 9

TERMINOLOGY...................................................................................................................................................... 15

MASTER CLOCK TIMING ...................................................................................................................................... 15

DIGITAL AUDIO INTERFACE – MASTER MODE .................................................................................................. 16

DIGITAL AUDIO INTERFACE – SLAVE MODE ..................................................................................................... 17

CONTROL INTERFACE TIMING – 3-WIRE MODE ............................................................................................... 18

CONTROL INTERFACE TIMING – 2-WIRE MODE ............................................................................................... 18

DEVICE DESCRIPTION............................................................................................................................. 20

INTRODUCTION..................................................................................................................................................... 20

CONTROL INTERFACE OPERATION ................................................................................................................... 21

DIGITAL AUDIO INTERFACES .............................................................................................................................. 25

AUDIO DATA FORMATS........................................................................................................................................ 27

AUDIO INTERFACE CONTROL ............................................................................................................................. 31

DAC FEATURES .................................................................................................................................................... 33

ADC FEATURES .................................................................................................................................................... 40

DIGITAL ROUTING OPTIONS................................................................................................................................ 41

CLOCK SELECTION .............................................................................................................................................. 43

PHASE-LOCKED LOOPS AND S/PDIF CLOCKING (SOFTWARE MODE) .......................................................... 49

PHASE-LOCKED LOOPS AND S/PDIF CLOCKING (HARDWARE MODE).......................................................... 57

S/PDIF TRANSCEIVER.......................................................................................................................................... 58

S/PDIF TRANSMITTER .......................................................................................................................................... 59

S/PDIF RECEIVER ................................................................................................................................................. 62

POWERDOWN MODES......................................................................................................................................... 71

INTERNAL POWER ON RESET CIRCUIT............................................................................................................. 73

HARDWARE CONTROL MODE............................................................................................................................. 75

REGISTER MAP..................................................................................................................................................... 78

DIGITAL FILTER CHARACTERISTICS .................................................................................................... 94

DAC FILTER RESPONSES.................................................................................................................................... 94

DIGITAL DE-EMPHASIS CHARACTERISTICS...................................................................................................... 95

ADC FILTER RESPONSES.................................................................................................................................... 95

ADC HIGH PASS FILTER....................................................................................................................................... 96

APPLICATIONS INFORMATION............................................................................................................... 97

RECOMMENDED EXTERNAL COMPONENTS ..................................................................................................... 97

PACKAGE DIMENSIONS .......................................................................................................................... 99

IMPORTANT NOTICE.............................................................................................................................. 100

ADDRESS:............................................................................................................................................................ 100

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