WM9712L
TABLE OF CONTENTS
Production Data
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
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
DEVICE DESCRIPTION.......................................................................................13
INTRODUCTION.......................................................................................................... 13
AUDIO PATHS OVERVIEW......................................................................................... 14
AUDIO INPUTS ....................................................................................................15
LINE INPUT ................................................................................................................. 15
MICROPHONE INPUT................................................................................................. 15
PHONE INPUT............................................................................................................. 17
PCBEEP INPUT ........................................................................................................... 18
AUDIO ADC..........................................................................................................19
RECORD SELECTOR ................................................................................................. 20
RECORD GAIN............................................................................................................ 21
AUTOMATIC LEVEL CONTROL.................................................................................. 22
AUDIO DACS .......................................................................................................25
STEREO DAC.............................................................................................................. 25
AUXILIARY DAC.......................................................................................................... 28
ANALOGUE AUDIO OUTPUTS ...........................................................................29
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
w
PD Rev 4.0 December 2003
2