WM8728

Production Data

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PD Rev 4.2 April 2004

2

TABLE OF CONTENTS

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

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

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

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

TABLE OF CONTENTS ..............................................................................................2

PIN CONFIGURATION................................................................................................3

ORDERING INFORMATION .......................................................................................3

PIN DESCRIPTION .....................................................................................................4

ABSOLUTE MAXIMUM RATINGS ..............................................................................5

DC ELECTRICAL CHARACTERISTICS .....................................................................6

ELECTRICAL CHARACTERISTICS ...........................................................................6

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

MASTER CLOCK TIMING .................................................................................................. 8

DIGITAL AUDIO INTERFACE ............................................................................................ 8

POWER SUPPLY TIMING ................................................................................................. 9

MPU 3-WIRE INTERFACE TIMING ..................................................................................10

MPU 2-WIRE INTERFACE TIMING ..................................................................................11

DEVICE DESCRIPTION ............................................................................................12

INTRODUCTION ...............................................................................................................12

CLOCKING SCHEMES .....................................................................................................12

DIGITAL AUDIO INTERFACE ...........................................................................................13

AUDIO DATA SAMPLING RATES.....................................................................................15

HARDWARE CONTROL MODES .....................................................................................16

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

REGISTER MAP ...............................................................................................................19

ATTENUATION CONTROL...............................................................................................20

DIGITAL FILTER CHARACTERISTICS.............................................................................23

DAC FILTER RESPONSES...............................................................................................23

DIGITAL DE-EMPHASIS CHARACTERISTICS ........................................................24

APPLICATIONS INFORMATION ..............................................................................25

RECOMMENDED EXTERNAL COMPONENTS (PCM AUDIO).........................................25

RECOMMENDED EXTERNAL COMPONENTS VALUES .................................................25

RECOMMENDED ANALOGUE LOW PASS FILTER FOR PCM DATA FORMAT

(OPTIONAL)......................................................................................................................26

PACKAGE DIMENSIONS .........................................................................................27

IMPORTANT NOTICE ...............................................................................................28

ADDRESS: ........................................................................................................................28