wm8742 Wolfson Microelectronics plc, wm8742 Datasheet - Page 3

• Manufacturer Part Number: wm8742
• Description: 24-bit 192khz Dac With Advanced Digital Filtering
• Manufacturer: Wolfson Microelectronics plc

Production Data
DESCRIPTION ....................................................................................................... 1
FEATURES ............................................................................................................ 1
APPLICATIONS ..................................................................................................... 1
BLOCK DIAGRAM ................................................................................................ 2
TABLE OF CONTENTS ......................................................................................... 3
PIN CONFIGURATION .......................................................................................... 4
ORDERING INFORMATION .................................................................................. 4
PIN DESCRIPTION (SOFTWARE CONTROL MODE) .......................................... 5
PIN DESCRIPTION (HARDWARE CONTROL MODE) ......................................... 7
ABSOLUTE MAXIMUM RATINGS ........................................................................ 9
THERMAL PERFORMANCE ................................................................................. 9
RECOMMENDED OPERATING CONDITIONS ................................................... 10
ELECTRICAL CHARACTERISTICS ................................................................... 10
DEVICE DESCRIPTION ...................................................................................... 18
OVERVIEW OF FUNCTIONS .............................................................................. 43
REGISTER MAP .................................................................................................. 44
DIGITAL FILTER CHARACTERISTICS .............................................................. 49
APPLICATIONS INFORMATION ........................................................................ 62
PACKAGE DIMENSIONS .................................................................................... 63
IMPORTANT NOTICE ......................................................................................... 64
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MASTER CLOCK TIMING ............................................................................................. 12
PCM DIGITAL AUDIO INTERFACE TIMINGS .............................................................. 12
DSD AUDIO INTERFACE TIMINGS.............................................................................. 13
CONTROL INTERFACE TIMING – 3-WIRE MODE ...................................................... 14
CONTROL INTERFACE TIMING – 2-WIRE MODE ...................................................... 15
INTERNAL POWER ON RESET CIRCUIT .................................................................... 16
INTRODUCTION ........................................................................................................... 18
CLOCKING SCHEMES ................................................................................................. 18
CONTROL INTERFACE ................................................................................................ 18
SOFTWARE CONTROL INTERFACE........................................................................... 19
DIGITAL AUDIO INTERFACE ....................................................................................... 21
DSD MODE ................................................................................................................... 27
SOFTWARE CONTROL MODE .................................................................................... 28
HARDWARE CONTROL MODE.................................................................................... 39
PCM MODE FILTER CHARACTERISTICS ................................................................... 49
8FS MODE FILTER CHARACTERISTICS .................................................................... 51
DSD PLUS MODE FILTER CHARACTERISTICS ......................................................... 52
PCM MODE FILTER RESPONSES .............................................................................. 53
8FS MODE FILTER RESPONSES ................................................................................ 58
DSD PLUS MODE FILTER RESPONSES .................................................................... 58
DSD DIRECT MODE FILTER RESPONSES ................................................................ 59
DEEMPHASIS FILTER RESPONSES........................................................................... 61
ADDRESS: .................................................................................................................... 64
TABLE OF CONTENTS
PD, Rev 4.2, August 2009
WM8742
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