Production Data
WM8741
TABLE OF CONTENTS
DESCRIPTION .......................................................................................................1
FEATURES.............................................................................................................1
APPLICATIONS .....................................................................................................1
BLOCK DIAGRAM .................................................................................................2
TABLE OF CONTENTS .........................................................................................3
PIN CONFIGURATION...........................................................................................4
ORDERING INFORMATION ..................................................................................4
PIN DESCRIPTION (SOFTWARE CONTROL MODE) ..........................................5
PIN DESCRIPTION (HARDWARE CONTROL MODE)..........................................7
ABSOLUTE MAXIMUM RATINGS.........................................................................9
THERMAL PERFORMANCE .................................................................................9
RECOMMENDED OPERATING CONDITIONS ...................................................10
ELECTRICAL CHARACTERISTICS ....................................................................10
MASTER CLOCK TIMING........................................................................................... 12
PCM DIGITAL AUDIO INTERFACE TIMINGS............................................................. 12
DSD AUDIO INTERFACE TIMINGS............................................................................ 13
CONTROL INTERFACE TIMING – 3-WIRE MODE .................................................... 14
CONTROL INTERFACE TIMING – 2-WIRE MODE .................................................... 15
INTERNAL POWER ON RESET CIRCUIT.................................................................. 16
DEVICE DESCRIPTION.......................................................................................18
INTRODUCTION......................................................................................................... 18
CLOCKING SCHEMES ............................................................................................... 18
CONTROL INTERFACE.............................................................................................. 18
SOFTWARE CONTROL INTERFACE......................................................................... 19
DIGITAL AUDIO INTERFACE..................................................................................... 21
DSD MODE ................................................................................................................. 27
SOFTWARE CONTROL MODE.................................................................................. 28
HARDWARE CONTROL MODE.................................................................................. 39
OVERVIEW OF FUNCTIONS...............................................................................43
REGISTER MAP...................................................................................................44
DIGITAL FILTER CHARACTERISTICS...............................................................49
PCM MODE FILTER CHARACTERISTICS ................................................................. 49
8FS MODE FILTER CHARACTERISTICS................................................................... 51
DSD PLUS MODE FILTER CHARACTERISTICS ....................................................... 52
PCM MODE FILTER RESPONSES............................................................................. 53
8FS MODE FILTER RESPONSES.............................................................................. 58
DSD PLUS MODE FILTER RESPONSES................................................................... 58
DSD DIRECT MODE FILTER RESPONSES............................................................... 59
DEEMPHASIS FILTER RESPONSES......................................................................... 61
APPLICATIONS INFORMATION .........................................................................62
PACKAGE DIMENSIONS ....................................................................................63
IMPORTANT NOTICE..........................................................................................64
ADDRESS: .................................................................................................................. 64
PD, Rev 4.2, October 2009
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
