WM8788 Preliminary Technical Data
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PTD, December 2011, Rev 2.3
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 ................................................................................................ 3
ABSOLUTE MAXIMUM RATINGS ........................................................................ 4
RECOMMENDED OPERATING CONDITIONS ..................................................... 4
THERMAL PERFORMANCE ................................................................................. 5
ELECTRICAL CHARACTERISTICS ..................................................................... 6
TERMINOLOGY ............................................................................................................... 7
SIGNAL TIMING REQUIREMENTS ...................................................................... 8
SYSTEM CLOCK TIMING ................................................................................................ 8
AUDIO INTERFACE TIMING ........................................................................................... 9
MASTER MODE .......................................................................................................................................... 9
SLAVE MODE ............................................................................................................................................. 9
DEVICE DESCRIPTION ...................................................................................... 10
INTRODUCTION ............................................................................................................ 10
CALIBRATED START-UP .............................................................................................. 10
SLAVE MODE ........................................................................................................................................... 10
MASTER MODE ........................................................................................................................................ 10
INPUT SIGNAL PATH .................................................................................................... 11
ANALOGUE-TO-DIGITAL CONVERTER (ADC) ............................................................ 12
DIGITAL AUDIO INTERFACE ........................................................................................ 12
DIGITAL AUDIO INTERFACE CONTROL ................................................................................................. 13
MASTER AND SLAVE MODE OPERATION ............................................................................................. 14
AUDIO DATA FORMATS .......................................................................................................................... 14
DIGITAL FILTER CHARACTERISTICS .............................................................. 16
ADC FILTER RESPONSE.............................................................................................. 16
APPLICATIONS INFORMATION ........................................................................ 18
RECOMMENDED EXTERNAL COMPONENTS ............................................................ 18
AUDIO INPUT PATHS ............................................................................................................................... 18
POWER SUPPLY DECOUPLING ............................................................................................................. 18
RECOMMENDED EXTERNAL COMPONENTS DIAGRAM ...................................................................... 19
PCB LAYOUT CONSIDERATIONS ............................................................................... 20
PACKAGE DIMENSIONS .................................................................................... 21
IMPORTANT NOTICE ......................................................................................... 22
ADDRESS: ..................................................................................................................... 22
REVISION HISTORY ........................................................................................... 23
