WM8740
Production Data
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
PD Rev 4.0 April 2004
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
