WM8776
Production Data
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......................................................................................9
DIGITAL AUDIO INTERFACE – MASTER MODE....................................................... 10
DIGITAL AUDIO INTERFACE – SLAVE MODE .......................................................... 11
3-WIRE MPU INTERFACE TIMING ............................................................................ 12
CONTROL INTERFACE TIMING – 2-WIRE MODE .................................................... 13
INTERNAL POWER ON RESET CIRCUIT ..........................................................14
DEVICE DESCRIPTION.......................................................................................16
INTRODUCTION......................................................................................................... 16
AUDIO DATA SAMPLING RATES............................................................................... 17
ZERO DETECT ........................................................................................................... 18
POWERDOWN MODES ............................................................................................. 18
DIGITAL AUDIO INTERFACE..............................................................................19
CONTROL INTERFACE OPERATION........................................................................ 23
CONTROL INTERFACE REGISTERS ........................................................................ 25
LIMITER / AUTOMATIC LEVEL CONTROL (ALC)...................................................... 34
REGISTER MAP ......................................................................................................... 41
DIGITAL FILTER CHARACTERISTICS...............................................................49
DAC FILTER RESPONSES......................................................................................... 49
ADC FILTER RESPONSES......................................................................................... 50
ADC HIGH PASS FILTER ........................................................................................... 51
DIGITAL DE-EMPHASIS CHARACTERISTICS........................................................... 52
APPLICATIONS INFORMATION .........................................................................53
EXTERNAL CIRCUIT CONFIGURATION ................................................................... 53
RECOMMENDED EXTERNAL COMPONENTS ..................................................54
PACKAGE DIMENSIONS ....................................................................................56
ADDRESS: .................................................................................................................. 57
PD Rev 4.0 April 2005
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
