WM8711BL
Production Data
TABLE OF CONTENTS
DESCRIPTION....................................................................................................... 1
FEATURES............................................................................................................ 1
APPLICATIONS .................................................................................................... 1
BLOCK DIAGRAM ................................................................................................ 1
TABLE OF CONTENTS......................................................................................... 2
PIN CONFIGURATION.......................................................................................... 3
ORDERING INFORMATION.................................................................................. 3
PIN DESCRIPTION................................................................................................ 4
ABSOLUTE MAXIMUM RATINGS........................................................................ 5
RECOMMENDED OPERATING CONDITIONS..................................................... 5
ELECTRICAL CHARACTERISTICS ..................................................................... 6
TERMINOLOGY .................................................................................................... 7
POWER CONSUMPTION...................................................................................... 8
HEADPHONE SNR VS AVDD............................................................................... 9
ANALOGUE SUPPLY CURRENT VS AVDD........................................................ 9
MASTER CLOCK TIMING............................................................................................... 10
DIGITAL AUDIO INTERFACE – MASTER MODE.......................................................... 10
DIGITAL AUDIO INTERFACE – SLAVE MODE ............................................................. 11
MPU INTERFACE TIMING.............................................................................................. 11
DEVICE DESCRIPTION ...................................................................................... 13
INTRODUCTION.............................................................................................................. 13
AUDIO SIGNAL PATH..................................................................................................... 14
DEVICE OPERATION...................................................................................................... 19
AUDIO DATA SAMPLING RATES .................................................................................. 27
ACTIVATING DSP AND DIGITAL AUDIO INTERFACE................................................. 30
SOFTWARE CONTROL INTERFACE ............................................................................ 30
POWER DOWN MODES................................................................................................. 32
REGISTER MAP .............................................................................................................. 34
DAC FILTER RESPONSES................................................................................. 38
DIGITAL DE-EMPHASIS CHARACTERISTICS.................................................. 40
RECOMMENDED EXTERNAL COMPONENTS ................................................. 41
PACKAGE DIMENSIONS – QFN ........................................................................ 42
IMPORTANT NOTICE ......................................................................................... 43
ADDRESS:....................................................................................................................... 43
REVISION HISTORY ........................................................................................... 44
PD, Rev 4.2, December 2011
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
