WM8711BL datasheet(2/44 Pages) CIRRUS

2 / 44 page

WM8711BL

Production Data

PD, Rev 4.2, December 2011

244

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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