WM8770 Просмотр технического описания (PDF) - Wolfson Microelectronics plc
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WM8770 Datasheet PDF : 52 Pages
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WM8770
TABLE OF CONTENTS
Production Data
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.........................................................................6
ELECTRICAL CHARACTERISTICS ......................................................................7
TERMINOLOGY .....................................................................................................8
MASTER CLOCK TIMING ............................................................................................. 9
DIGITAL AUDIO INTERFACE – MASTER MODE ......................................................... 9
DIGITAL AUDIO INTERFACE – SLAVE MODE .......................................................... 11
MPU INTERFACE TIMING .......................................................................................... 12
INTERNAL POWER ON RESET CIRCUIT ..........................................................14
DEVICE DESCRIPTION.......................................................................................17
INTRODUCTION ......................................................................................................... 17
AUDIO DATA SAMPLING RATES............................................................................... 18
ZERO DETECT ........................................................................................................... 19
POWERDOWN MODES ............................................................................................. 20
DIGITAL AUDIO INTERFACE ..................................................................................... 20
CONTROL INTERFACE OPERATION ........................................................................ 24
CONTROL INTERFACE REGISTERS ........................................................................ 26
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
EXTERNAL CIRCUIT CONFIGURATION ................................................................... 49
PACKAGE DIMENSIONS ....................................................................................51
IMPORTANT NOTICE ..........................................................................................52
ADDRESS: .................................................................................................................. 52
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PD Rev 4.1 June 2005
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