WM8740

Production Data

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PD Rev 4.0 April 2004

2

TABLE OF CONTENTS

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

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

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

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

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

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

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

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

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

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

DEVICE DESCRIPTION .........................................................................................9

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

AUDIO DATA INTERFACE ....................................................................................9

NORMAL SAMPLE RATE ........................................................................................... 10

8 X FS INPUT SAMPLE RATE .................................................................................... 11

MODES OF OPERATION ........................................................................................... 11

HARDWARE CONTROL MODES ............................................................................... 11

SOFTWARE CONTROL INTERFACE......................................................................... 12

REGISTER MAP ......................................................................................................... 13

MUTE MODES ............................................................................................................ 17

FILTER RESPONSES ................................................................................................. 18

RECOMMENDED EXTERNAL COMPONENTS ..................................................21

RECOMMENDED EXTERNAL COMPONENTS VALUES ........................................... 21

SUGGESTED DIFFERENTIAL OUTPUT FILTER CIRCUIT........................................ 22

RECOMMENDED DUAL DIFFERENTIAL HARDWARE SETUP................................. 22

PACKAGE DIMENSIONS ....................................................................................23

IMPORTANT NOTICE ..........................................................................................24

ADDRESS: .................................................................................................................. 24