WM8581(2005) 데이터 시트보기 (PDF) - Wolfson Microelectronics plc
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WM8581 Datasheet PDF : 100 Pages
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Production Data
WM8581
TABLE OF CONTENTS
DESCRIPTION ............................................................................................................................................. 1
FEATURES .................................................................................................................................................. 1
APPLICATIONS ........................................................................................................................................... 1
BLOCK DIAGRAM ....................................................................................................................................... 2
TABLE OF CONTENTS............................................................................................................................... 3
PIN CONFIGURATION ................................................................................................................................ 4
ORDERING INFORMATION........................................................................................................................ 4
PIN DESCRIPTION ...................................................................................................................................... 5
MULTI-FUNCTION PINS .......................................................................................................................................... 6
ABSOLUTE MAXIMUM RATINGS .............................................................................................................. 8
RECOMMENDED OPERATING CONDITIONS .......................................................................................... 9
ELECTRICAL CHARACTERISTICS............................................................................................................ 9
TERMINOLOGY...................................................................................................................................................... 15
MASTER CLOCK TIMING ...................................................................................................................................... 15
DIGITAL AUDIO INTERFACE – MASTER MODE .................................................................................................. 16
DIGITAL AUDIO INTERFACE – SLAVE MODE ..................................................................................................... 17
CONTROL INTERFACE TIMING – 3-WIRE MODE ............................................................................................... 18
CONTROL INTERFACE TIMING – 2-WIRE MODE ............................................................................................... 18
DEVICE DESCRIPTION............................................................................................................................. 20
INTRODUCTION..................................................................................................................................................... 20
CONTROL INTERFACE OPERATION ................................................................................................................... 21
DIGITAL AUDIO INTERFACES .............................................................................................................................. 25
AUDIO DATA FORMATS........................................................................................................................................ 27
AUDIO INTERFACE CONTROL ............................................................................................................................. 31
DAC FEATURES .................................................................................................................................................... 33
ADC FEATURES .................................................................................................................................................... 40
DIGITAL ROUTING OPTIONS................................................................................................................................ 41
CLOCK SELECTION .............................................................................................................................................. 43
PHASE-LOCKED LOOPS AND S/PDIF CLOCKING (SOFTWARE MODE) .......................................................... 49
PHASE-LOCKED LOOPS AND S/PDIF CLOCKING (HARDWARE MODE).......................................................... 57
S/PDIF TRANSCEIVER.......................................................................................................................................... 58
S/PDIF TRANSMITTER .......................................................................................................................................... 59
S/PDIF RECEIVER ................................................................................................................................................. 62
POWERDOWN MODES......................................................................................................................................... 71
INTERNAL POWER ON RESET CIRCUIT............................................................................................................. 73
HARDWARE CONTROL MODE............................................................................................................................. 75
REGISTER MAP ..................................................................................................................................................... 78
DIGITAL FILTER CHARACTERISTICS .................................................................................................... 94
DAC FILTER RESPONSES.................................................................................................................................... 94
DIGITAL DE-EMPHASIS CHARACTERISTICS...................................................................................................... 95
ADC FILTER RESPONSES.................................................................................................................................... 95
ADC HIGH PASS FILTER....................................................................................................................................... 96
APPLICATIONS INFORMATION............................................................................................................... 97
RECOMMENDED EXTERNAL COMPONENTS ..................................................................................................... 97
PACKAGE DIMENSIONS .......................................................................................................................... 99
IMPORTANT NOTICE.............................................................................................................................. 100
ADDRESS:............................................................................................................................................................ 100
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PD Rev 4.0 April 2007
3
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