WM9713L datasheet(3/108 Pages) WOLFSON

3 / 108 page

Pre-Production

WM9713L

PP Rev 3.0 June 2006

AUDIO MIXERS....................................................................................................46

MIXER OVERVIEW ..................................................................................................... 46

HEADPHONE MIXERS ................................................................................................ 46

SPEAKER MIXER ........................................................................................................ 46

MONO MIXER.............................................................................................................. 47

MIXER OUTPUT INVERTERS..................................................................................... 47

ANALOGUE AUDIO OUTPUTS ...........................................................................48

HEADPHONE OUTPUTS – HPL AND HPR................................................................. 48

MONO OUTPUT .......................................................................................................... 49

SPEAKER OUTPUTS – SPKL AND SPKR .................................................................. 50

AUXILIARY OUTPUTS – OUT3 AND OUT4 ................................................................ 51

THERMAL SENSOR .................................................................................................... 52

JACK INSERTION AND AUTO-SWITCHING............................................................... 53

DIGITAL AUDIO (SPDIF) OUTPUT......................................................................56

TOUCHPANEL INTERFACE................................................................................57

PRINCIPLE OF OPERATION - FIVE-WIRE TOUCHPANEL........................................ 60

CONTROLLING THE TOUCHPANEL DIGITISER ....................................................... 62

ADDITIONAL FEATURES....................................................................................71

AUXILIARY ADC INPUTS............................................................................................ 71

BATTERY ALARM AND ANALOGUE COMPARATORS.............................................. 72

GPIO AND INTERRUPT CONTROL............................................................................ 75

POWER MANAGEMENT .....................................................................................79

INTRODUCTION.......................................................................................................... 79

AC97 CONTROL REGISTER....................................................................................... 79

EXTENDED POWERDOWN REGISTERS .................................................................. 79

ADDITIONAL POWER MANAGEMENT....................................................................... 80

POWER ON RESET (POR) ......................................................................................... 81

AC97 INTERFACE TIMING.......................................................................................... 81

APPLICATIONS INFORMATION .........................................................................99

RECOMMENDED EXTERNAL COMPONENTS........................................................... 99

LINE OUTPUT ........................................................................................................... 100

AC-COUPLED HEADPHONE OUTPUT..................................................................... 100

DC COUPLED (CAPLESS) HEADPHONE OUTPUT ................................................. 101

BTL LOUDSPEAKER OUTPUT ................................................................................. 101

COMBINED HEADSET / BTL EAR SPEAKER........................................................... 102

COMBINED HEADSET / SINGLE-ENDED EAR SPEAKER....................................... 102

JACK INSERT DETECTION ...................................................................................... 103

HOOKSWITCH DETECTION..................................................................................... 103

TYPICAL OUTPUT CONFIGURATIONS ................................................................... 104

PACKAGE DIMENSIONS ..................................................................................107

IMPORTANT NOTICE ........................................................................................108

ADDRESS:................................................................................................................. 108

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