WM8776 datasheet(2/55 Pages) WOLFSON

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WM8776

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PP Rev 1.91 June 2004

TABLE OF CONTENTS

DESCRIPTION .......................................................................................................1

FEATURES.............................................................................................................1

APPLICATIONS .....................................................................................................1

BLOCK DIAGRAM .................................................................................................1

TABLE OF CONTENTS .........................................................................................2

PIN CONFIGURATION...........................................................................................3

ORDERING INFORMATION ..................................................................................3

PIN DESCRIPTION ................................................................................................4

ABSOLUTE MAXIMUM RATINGS .........................................................................5

ELECTRICAL CHARACTERISTICS ......................................................................6

TERMINOLOGY ............................................................................................................ 7

MASTER CLOCK TIMING......................................................................................8

DIGITAL AUDIO INTERFACE – MASTER MODE ......................................................... 9

DIGITAL AUDIO INTERFACE – SLAVE MODE .......................................................... 10

3-WIRE MPU INTERFACE TIMING ............................................................................ 11

CONTROL INTERFACE TIMING – 2-WIRE MODE .................................................... 12

DEVICE DESCRIPTION .......................................................................................13

INTRODUCTION ......................................................................................................... 13

AUDIO DATA SAMPLING RATES............................................................................... 14

ZERO DETECT ........................................................................................................... 15

POWERDOWN MODES ............................................................................................. 15

POWER-ON-RESET ................................................................................................... 16

DIGITAL AUDIO INTERFACE ..................................................................................... 17

CONTROL INTERFACE OPERATION ........................................................................ 21

CONTROL INTERFACE REGISTERS ........................................................................ 23

LIMITER / AUTOMATIC LEVEL CONTROL (ALC) ...................................................... 32

REGISTER MAP ......................................................................................................... 39

DIGITAL FILTER CHARACTERISTICS ...............................................................47

DAC FILTER RESPONSES......................................................................................... 47

ADC FILTER RESPONSES......................................................................................... 48

ADC HIGH PASS FILTER ........................................................................................... 49

DIGITAL DE-EMPHASIS CHARACTERISTICS........................................................... 50

APPLICATIONS INFORMATION .........................................................................51

EXTERNAL CIRCUIT CONFIGURATION ................................................................... 51

RECOMMENDED EXTERNAL COMPONENTS ..................................................52

PACKAGE DIMENSIONS ....................................................................................54

ADDRESS: .................................................................................................................. 55

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