WM8753 datasheet(2/87 Pages) WOLFSON

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WM8753L

AI Rev 3.1 June 2004

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

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