WM9713L datasheet(3/133 Pages) CIRRUS

3 / 133 page

WM9713L

Rev 4.0

AUDIO MIXERS............................................................................................................ 53

MIXER OVERVIEW..................................................................................................................53

HEADPHONE MIXERS ............................................................................................................53

SPEAKER MIXER ....................................................................................................................53

MONO MIXER ..........................................................................................................................54

MIXER OUTPUT INVERTERS.................................................................................................54

ANALOGUE AUDIO OUTPUTS ................................................................................... 55

HEADPHONE OUTPUTS

– HPL AND HPR ............................................................................55

MONO OUTPUT.......................................................................................................................56

SPEAKER OUTPUTS

– SPKL AND SPKR..............................................................................57

AUXILIARY OUTPUTS

– OUT3 AND OUT4............................................................................58

THERMAL SENSOR ................................................................................................................60

JACK INSERTION AND AUTO-SWITCHING ..........................................................................60

DIGITAL AUDIO (S/PDIF) OUTPUT............................................................................. 64

TOUCHPANEL INTERFACE ........................................................................................ 65

PRINCIPLE OF OPERATION

– FOUR-WIRE TOUCHPANEL ................................................66

PRINCIPAL OF OPERATION

– FIVE-WIRE TOUCHPANEL ..................................................68

CONTROLLING THE TOUCHPANEL DIGITISER ...................................................................69

ADDITIONAL FEATURES............................................................................................ 78

AUXILIARY ADC INPUTS ........................................................................................................78

BATTERY ALARM AND ANALOGUE COMPARATORS .........................................................79

GPIO AND INTERRUPT CONTROL........................................................................................82

POWER MANAGEMENT.............................................................................................. 86

INTRODUCTION ......................................................................................................................86

AC97 CONTROL REGISTER...................................................................................................86

EXTENDED POWERDOWN REGISTERS ..............................................................................87

ADDITIONAL POWER MANAGEMENT...................................................................................89

POWER-ON RESET (POR) .....................................................................................................90

REGISTER MAP ........................................................................................................... 91

REGISTER BITS BY ADDRESS ..............................................................................................92

APPLICATIONS INFORMATION ............................................................................... 123

RECOMMENDED EXTERNAL COMPONENTS ....................................................................123

LINE OUTPUT........................................................................................................................124

AC-COUPLED HEADPHONE OUTPUT ................................................................................124

DC-COUPLED (CAPLESS) HEADPHONE OUTPUT ............................................................125

BTL LOUDSPEAKER OUTPUT .............................................................................................125

COMBINED HEADSET / BTL EAR SPEAKER ......................................................................126

COMBINED HEADSET / SINGLE-ENDED EAR SPEAKER ..................................................126

JACK INSERT DETECTION ..................................................................................................127

HOOKSWITCH DETECTION .................................................................................................127

TYPICAL OUTPUT CONFIGURATIONS ...............................................................................128

PACKAGE DIMENSIONS........................................................................................... 131

IMPORTANT NOTICE ................................................................................................ 132

REVISION HISTORY .................................................................................................. 133

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