Advanced Information
WM8753L
TABLE OF CONTENTS
DESCRIPTION .......................................................................................................1
FEATURES ............................................................................................................1
APPLICATIONS.....................................................................................................1
TABLE OF CONTENTS .........................................................................................2
PIN CONFIGURATION - QFN................................................................................4
PIN CONFIGURATION - BGA ...............................................................................4
ORDERING INFORMATION ..................................................................................4
PIN DESCRIPTION ................................................................................................5
ABSOLUTE MAXIMUM RATINGS.........................................................................6
SIMULATED THERMAL PROPERTIES......................................................................... 6
RECOMMENDED OPERATING CONDITIONS .....................................................6
ELECTRICAL CHARACTERISTICS......................................................................7
TERMINOLOGY ............................................................................................................ 9
OUTPUT PGA’S LINEARITY....................................................................................... 10
SIGNAL TIMING REQUIREMENTS.....................................................................13
SYSTEM CLOCK TIMING ........................................................................................... 13
MODE/GPIO3 AND CSB/GPIO5 LATCH ON POWERUP TIMING .............................. 13
AUDIO INTERFACE TIMING – MASTER MODE......................................................... 14
AUDIO INTERFACE TIMING – SLAVE MODE............................................................ 15
CONTROL INTERFACE TIMING – 3-WIRE MODE..................................................... 16
CONTROL INTERFACE TIMING – 2-WIRE MODE..................................................... 17
DEVICE DESCRIPTION.......................................................................................18
INTRODUCTION ......................................................................................................... 18
INPUT SIGNAL PATH.................................................................................................. 20
MICROPHONE INPUTS ............................................................................................. 24
PGA CONTROL........................................................................................................... 28
AUTOMATIC LEVEL CONTROL (ALC) ....................................................................... 31
3D STEREO ENHANCEMENT .................................................................................... 34
OUTPUT SIGNAL PATH.............................................................................................. 36
ANALOGUE OUTPUTS............................................................................................... 42
HEADPHONE SWITCH ............................................................................................... 46
HEADPHONE OUTPUT............................................................................................... 47
INTERRUPT CONTROLLER ....................................................................................... 48
GENERAL PURPOSE INPUT/OUTPUT ...................................................................... 51
DIGITAL AUDIO INTERFACES ................................................................................... 53
AUDIO INTERFACES CONTROL................................................................................ 57
CONTROL INTERFACE .............................................................................................. 61
MASTER CLOCK AND PHASE LOCKED LOOP......................................................... 65
AUDIO SAMPLE RATES ............................................................................................. 68
POWER SUPPLIES..................................................................................................... 70
POWER MANAGEMENT............................................................................................. 71
REGISTER MAP.......................................................................................................... 74
TERMINOLOGY .......................................................................................................... 77
DAC FILTER RESPONSES .................................................................................78
ADC FILTER RESPONSES .................................................................................79
VOICE FILTER RESPONSES..............................................................................81
VOICE DAC FILTER RESPONSES............................................................................. 81
VOICE ADC FILTER RESPONSES............................................................................. 81
DE-EMPHASIS FILTER RESPONSES................................................................82
AI Rev 3.1 June 2004
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
