Pre-Production
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.....................................................................12
SYSTEM CLOCK TIMING ........................................................................................... 12
MODE/GPIO3 AND CSB/GPIO5 LATCH ON POWERUP TIMING .............................. 12
AUDIO INTERFACE TIMING – MASTER MODE......................................................... 13
AUDIO INTERFACE TIMING – SLAVE MODE............................................................ 14
CONTROL INTERFACE TIMING – 3-WIRE MODE..................................................... 15
CONTROL INTERFACE TIMING – 2-WIRE MODE..................................................... 16
INTERNAL POWER ON RESET CIRCUIT ..........................................................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................................................................................ 58
CONTROL INTERFACE .............................................................................................. 62
MASTER CLOCK AND PHASE LOCKED LOOP......................................................... 66
AUDIO SAMPLE RATES ............................................................................................. 69
POWER SUPPLIES..................................................................................................... 71
POWER MANAGEMENT............................................................................................. 72
REGISTER MAP.......................................................................................................... 77
DIGITAL FILTER CHARACTERISTICS...............................................................79
TERMINOLOGY .......................................................................................................... 80
DAC FILTER RESPONSES......................................................................................... 81
ADC FILTER RESPONSES......................................................................................... 82
VOICE FILTER RESPONSES..............................................................................84
VOICE DAC FILTER RESPONSES............................................................................. 84
VOICE ADC FILTER RESPONSES............................................................................. 84
PP Rev 3.4 November 2005
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
