WM9712CLGEFL/RV WOLFSON [Wolfson Microelectronics plc], WM9712CLGEFL/RV Datasheet - Page 2

• Manufacturer Part Number: WM9712CLGEFL/RV
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

WM9712L
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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
DEVICE DESCRIPTION ...................................................................................... 13
AUDIO INPUTS.................................................................................................... 15
AUDIO ADC ......................................................................................................... 19
AUDIO DACS ...................................................................................................... 25
ANALOGUE AUDIO OUTPUTS .......................................................................... 29
VARIABLE RATE AUDIO / SAMPLE RATE CONVERSION .............................. 37
TOUCHPANEL INTERFACE ............................................................................... 38
AUDIO OUTPUTS ............................................................................................................ 7
AUDIO INPUTS ................................................................................................................ 8
AUXILIARY MONO DAC (AUXDAC) ................................................................................ 8
TOUCHPANEL AND AUXILIARY ADC ............................................................................ 9
COMPARATORS ............................................................................................................. 9
REFERENCE VOLTAGES ............................................................................................. 10
DIGITAL INTERFACE CHARACTERISTICS ................................................................. 10
HEADPHONE / SPEAKER OUTPUT THD VERSUS POWER ...................................... 11
POWER CONSUMPTION .............................................................................................. 12
INTRODUCTION ............................................................................................................ 13
AUDIO PATHS OVERVIEW ........................................................................................... 14
LINE INPUT .................................................................................................................... 15
MICROPHONE INPUT ................................................................................................... 15
PHONE INPUT ............................................................................................................... 17
PCBEEP INPUT ............................................................................................................. 18
RECORD SELECTOR.................................................................................................... 20
RECORD GAIN .............................................................................................................. 21
AUTOMATIC LEVEL CONTROL .................................................................................... 22
STEREO DAC ................................................................................................................ 25
AUXILIARY DAC ............................................................................................................ 28
HEADPHONE OUTPUTS – HPOUTL AND HPOUTR ................................................... 29
EAR SPEAKER OUTPUT – OUT3 ................................................................................. 30
LOUDSPEAKER OUTPUTS – LOUT2 AND ROUT2 ..................................................... 31
PHONE OUTPUT (MONOOUT) ..................................................................................... 32
THERMAL SENSOR ...................................................................................................... 32
JACK INSERTION AND AUTO-SWITCHING ................................................................ 33
DIGITAL AUDIO (SPDIF) OUTPUT ............................................................................... 34
AUDIO MIXERS ............................................................................................................. 35
PRINCIPLE OF OPERATION - FOUR-WIRE TOUCHPANEL ....................................... 38
PRINCIPLE OF OPERATION - FIVE-WIRE TOUCHPANEL ......................................... 40
TABLE OF CONTENTS
PD, Rev 4.6, November 2011
Production Data
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