Production Data
WM8711 / WM8711L
TABLE OF CONTENTS
DESCRIPTION .......................................................................................................1
FEATURES ............................................................................................................1
APPLICATIONS .....................................................................................................1
BLOCK DIAGRAM .................................................................................................1
PIN CONFIGURATION – 28-LEAD SSOP.............................................................3
ORDERING INFORMATION – 28-LEAD SSOP ....................................................3
PIN CONFIGURATION – 28-LEAD QFN ...............................................................4
ORDERING INFORMATION – 28-LEAD QFN.......................................................4
PIN DESCRIPTION ................................................................................................5
ABSOLUTE MAXIMUM RATINGS.........................................................................6
RECOMMENDED OPERATING CONDITIONS – WM8711 ...................................6
RECOMMENDED OPERATING CONDITIONS – WM8711L.................................6
ELECTRICAL CHARACTERISTICS – WM8711....................................................7
TERMINOLOGY .....................................................................................................8
POWER CONSUMPTION – WM8711 ....................................................................9
ELECTRICAL CHARACTERISTICS – WM8711L .................................................9
TERMINOLOGY ...................................................................................................10
POWER CONSUMPTION – WM8711L ................................................................11
WM8711L HEADPHONE SNR VS AVDD ............................................................12
WM8711L ANALOGUE SUPPLY CURRENT VS AVDD .....................................12
DIGITAL AUDIO INTERFACE – MASTER MODE........................................................ 13
DIGITAL AUDIO INTERFACE – SLAVE MODE ........................................................... 14
MPU INTERFACE TIMING........................................................................................... 14
DEVICE DESCRIPTION .......................................................................................16
INTRODUCTION.......................................................................................................... 16
AUDIO SIGNAL PATH ................................................................................................. 17
DEVICE OPERATION.................................................................................................. 22
AUDIO DATA SAMPLING RATES ............................................................................... 30
ACTIVATING DSP AND DIGITAL AUDIO INTERFACE ............................................... 33
SOFTWARE CONTROL INTERFACE.......................................................................... 33
POWER DOWN MODES ............................................................................................. 35
REGISTER MAP .......................................................................................................... 37
DAC FILTER RESPONSES .................................................................................41
DIGITAL DE-EMPHASIS CHARACTERISTICS ..................................................42
RECOMMENDED EXTERNAL COMPONENTS ..................................................44
PACKAGE DIMENSIONS - SSOP .......................................................................45
PACKAGE DIMENSIONS – QFN.........................................................................46
IMPORTANT NOTICE ..........................................................................................47
ADDRESS:................................................................................................................... 47
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PD Rev 4.3 September 2006
2
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
