wm9712l Wolfson Microelectronics plc, wm9712l Datasheet - Page 3

• Manufacturer Part Number: wm9712l
• Description: Ac?97 Audio And Touchpanel Codec
• Manufacturer: Wolfson Microelectronics plc

Production Data
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AUXILIARY ADC INPUTS ....................................................................................47
BATTERY ALARM AND ANALOGUE COMPARATORS ....................................48
GPIO AND INTERRUPT CONTROL ....................................................................51
AC97 DATA AND CONTROL INTERFACE .........................................................58
REGISTER MAP...................................................................................................62
APPLICATIONS INFORMATION .........................................................................71
PACKAGE DRAWING..........................................................................................76
IMPORTANT NOTICE ..........................................................................................77
PRINCIPLE OF OPERATION - FIVE-WIRE TOUCHPANEL........................................ 40
CONTROLLING THE TOUCHPANEL DIGITISER ....................................................... 42
BATTERY MEASUREMENT USING THE BMON/AUX3 PIN ....................................... 47
INTERFACE PROTOCOL............................................................................................ 58
INTERFACE TIMING ................................................................................................... 59
REGISTER BITS BY ADDRESS .................................................................................. 63
RECOMMENDED EXTERNAL COMPONENTS........................................................... 71
RECOMMENDED COMPONENTS VALUES ............................................................... 72
LINE OUTPUT ............................................................................................................. 72
AC-COUPLED HEADPHONE OUTPUT....................................................................... 73
DC COUPLED (CAPLESS) HEADPHONE OUTPUT ................................................... 73
BTL LOUDSPEAKER OUTPUT ................................................................................... 74
COMBINED HEADSET / BTL EAR SPEAKER............................................................. 74
COMBINED HEADSET / SINGLE-ENDED EAR SPEAKER......................................... 74
JACK INSERT DETECTION ........................................................................................ 75
HOOKSWITCH DETECTION....................................................................................... 75
ADDRESS:................................................................................................................... 77
PD Rev 4.5 August 2006
WM9712L
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