WM8778
TABLE OF CONTENTS
Product Preview
DESCRIPTION .......................................................................................................1
FEATURES.............................................................................................................1
APPLICATIONS .....................................................................................................1
BLOCK DIAGRAM .................................................................................................1
TABLE OF CONTENTS .........................................................................................2
PIN CONFIGURATION...........................................................................................3
ORDERING INFORMATION ..................................................................................3
ABSOLUTE MAXIMUM RATINGS.........................................................................5
ELECTRICAL CHARACTERISTICS ......................................................................6
TERMINOLOGY ............................................................................................................ 7
MASTER CLOCK TIMING......................................................................................8
DIGITAL AUDIO INTERFACE – MASTER MODE ......................................................... 8
TABLE 2 DIGITAL AUDIO DATA TIMING – MASTER MODE ....................................... 9
DIGITAL AUDIO INTERFACE – SLAVE MODE ............................................................ 9
3-WIRE MPU INTERFACE TIMING ............................................................................ 11
CONTROL INTERFACE TIMING – 2-WIRE MODE .................................................... 12
DEVICE DESCRIPTION.......................................................................................13
INTRODUCTION ......................................................................................................... 13
AUDIO DATA SAMPLING RATES............................................................................... 13
ZERO DETECT ........................................................................................................... 15
POWERDOWN MODES ............................................................................................. 15
POWER-ON-RESET ................................................................................................... 15
DIGITAL AUDIO INTERFACE ..................................................................................... 16
CONTROL INTERFACE OPERATION ........................................................................ 21
CONTROL INTERFACE REGISTERS ........................................................................ 23
LIMITER / AUTOMATIC LEVEL CONTROL (ALC) ...................................................... 32
REGISTER MAP ......................................................................................................... 38
DIGITAL FILTER CHARACTERISTICS ...............................................................45
DAC FILTER RESPONSES......................................................................................... 45
ADC FILTER RESPONSES......................................................................................... 46
ADC HIGH PASS FILTER ........................................................................................... 46
DIGITAL DE-EMPHASIS CHARACTERISTICS........................................................... 47
APPLICATIONS INFORMATION .........................................................................48
RECOMMENDED EXTERNAL COMPONENTS .......................................................... 48
PACKAGE DIMENSIONS ....................................................................................49
IMPORTANT NOTICE ..........................................................................................50
ADDRESS: .................................................................................................................. 50
w
PP Rev 1.7 June 2004
2