WM8742 Просмотр технического описания (PDF) - Cirrus Logic

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WM8742

24-bit 192kHz DAC with Advanced Digital Filtering

Cirrus Logic 

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WM8742

TABLE OF CONTENTS

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

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

DEVICE DESCRIPTION ...................................................................................... 18

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

OVERVIEW OF FUNCTIONS .............................................................................. 43

REGISTER MAP .................................................................................................. 44

DIGITAL FILTER CHARACTERISTICS .............................................................. 49

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

APPLICATIONS INFORMATION ........................................................................ 62

PACKAGE DIMENSIONS.................................................................................... 63

IMPORTANT NOTICE ......................................................................................... 64

ADDRESS: .................................................................................................................... 64

REVISION HISTORY ........................................................................................... 65

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PD, Rev 4.3, February 2013

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