WM8711BL_11 Datasheet, PDF (2/44 Pages) Wolfson Microelectronics plc – Ultra-Small Audio DAC with Headphone Amplifier

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
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PD, Rev 4.2, December 2011
244