WM8521 Production Data
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PD, Rev 4.2, February 2013
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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
DC ELECTRICAL CHARACTERISTICS ............................................................... 6
ELECTRICAL CHARACTERISTICS ..................................................................... 6
TERMINOLOGY ............................................................................................................... 7
MASTER CLOCK TIMING ................................................................................................ 8
DIGITAL AUDIO INTERFACE .......................................................................................... 8
DEVICE DESCRIPTION ........................................................................................ 9
GENERAL INTRODUCTION ............................................................................................ 9
DAC CIRCUIT DESCRIPTION ......................................................................................... 9
CLOCKING SCHEMES .................................................................................................. 10
DIGITAL AUDIO INTERFACE ........................................................................................ 10
AUDIO DATA SAMPLING RATES ................................................................................. 12
HARDWARE CONTROL MODES .................................................................................. 13
DIGITAL FILTER CHARACTERISTICS ......................................................................... 15
DAC FILTER RESPONSES ........................................................................................... 15
DIGITAL DE-EMPHASIS CHARACTERISTICS ............................................................. 16
APPLICATIONS INFORMATION ........................................................................ 17
RECOMMENDED EXTERNAL COMPONENTS ............................................................ 17
RECOMMENDED EXTERNAL COMPONENTS VALUES ............................................. 17
RECOMMENDED ANALOGUE LOW PASS FILTER .................................................... 18
PCB LAYOUT RECOMMENDATIONS .......................................................................... 18
PACKAGE DRAWING ......................................................................................... 19
IMPORTANT NOTICE ......................................................................................... 20
ADDRESS: ..................................................................................................................... 20
REVISION HISTORY ........................................................................................... 21
