WM9093ECSSLASHR datasheet(2/84 Pages) WOLFSON

2 / 84 page

WM9093

Production Data

PD, March 2012, Rev 4.2

TABLE OF CONTENTS

DESCRIPTION....................................................................................................... 1

FEATURES ............................................................................................................ 1

APPLICATIONS..................................................................................................... 1

BLOCK DIAGRAM ................................................................................................ 1

TABLE OF CONTENTS......................................................................................... 2

PIN CONFIGURATION .......................................................................................... 4

ORDERING INFORMATION.................................................................................. 4

PIN DESCRIPTION................................................................................................ 5

ABSOLUTE MAXIMUM RATINGS ........................................................................ 6

RECOMMENDED OPERATING CONDITIONS..................................................... 6

ELECTRICAL CHARACTERISTICS ..................................................................... 7

TERMINOLOGY............................................................................................................. 10

PERFORMANCE PLOTS............................................................................................... 11

TYPICAL PERFORMANCE ................................................................................. 12

POWER CONSUMPTION .............................................................................................. 12

AUDIO SIGNAL PATHS DIAGRAM .................................................................... 13

CONTROL INTERFACE TIMING......................................................................... 14

DEVICE DESCRIPTION ...................................................................................... 15

INTRODUCTION............................................................................................................ 15

INPUT SIGNAL PATH.................................................................................................... 16

LINE INPUTS.............................................................................................................................................17

INPUT PGA ENABLE ................................................................................................................................17

INPUT PGA CONFIGURATION ................................................................................................................18

INPUT PGA VOLUME CONTROL.............................................................................................................18

OUTPUT SIGNAL PATH................................................................................................ 21

OUTPUT SIGNAL PATHS ENABLE..........................................................................................................21

SPEAKER MIXER CONTROL ...................................................................................................................22

SPEAKER OUTPUT VOLUME CONTROL................................................................................................23

SPEAKER BOOST MIXER CONTROL .....................................................................................................24

HEADPHONE MIXER CONTROL .............................................................................................................24

HEADPHONE OUTPUT VOLUME CONTROL..........................................................................................27

AUTOMATIC GAIN CONTROL (AGC)........................................................................... 29

AGC CONTROL ........................................................................................................................................29

AGC ANTI-CLIP.........................................................................................................................................29

AGC POWER LIMITING ............................................................................................................................31

ANALOGUE OUTPUTS ................................................................................................. 33

SPEAKER OUTPUT CONFIGURATIONS.................................................................................................33

HEADPHONE OUTPUT CONFIGURATIONS ...........................................................................................34

CLOCKING CONTROL .................................................................................................. 35

CONTROL INTERFACE................................................................................................. 37

CONTROL WRITE SEQUENCER.................................................................................. 40

INITIATING A SEQUENCE........................................................................................................................40

PROGRAMMING A SEQUENCE ..............................................................................................................41

DEFAULT SEQUENCES ...........................................................................................................................43

POWER SEQUENCES AND POP SUPPRESSION CONTROL.................................... 45

INPUT VMID CLAMPS ..............................................................................................................................45

HEADPHONE ENABLE/DISABLE .............................................................................................................46

RECOMMENDED HEADPHONE START UP SEQUENCE.......................................................................48

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