WM8788 Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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WM8788

High Performance 24-bit Stereo ADC

Wolfson Microelectronics plc 

WM8788

Preliminary Technical Data

TABLE OF CONTENTS

DESCRIPTION .......................................................................................................1

FEATURES............................................................................................................. 1

APPLICATIONS .....................................................................................................1

BLOCK DIAGRAM .................................................................................................1

TABLE OF CONTENTS .........................................................................................2

PIN CONFIGURATION...........................................................................................3

ORDERING INFORMATION ..................................................................................3

PIN DESCRIPTION ................................................................................................3

ABSOLUTE MAXIMUM RATINGS.........................................................................4

RECOMMENDED OPERATING CONDITIONS .....................................................4

THERMAL PERFORMANCE .................................................................................5

ELECTRICAL CHARACTERISTICS ......................................................................6

TERMINOLOGY............................................................................................................. 7

SIGNAL TIMING REQUIREMENTS .......................................................................8

SYSTEM CLOCK TIMING.............................................................................................. 8

AUDIO INTERFACE TIMING ......................................................................................... 9

MASTER MODE .......................................................................................................................................... 9

SLAVE MODE ............................................................................................................................................. 9

DEVICE DESCRIPTION .......................................................................................10

INTRODUCTION.......................................................................................................... 10

INPUT SIGNAL PATH.................................................................................................. 10

ANALOGUE-TO-DIGITAL CONVERTER (ADC) .......................................................... 12

DIGITAL AUDIO INTERFACE...................................................................................... 12

DIGITAL AUDIO INTERFACE CONTROL................................................................................................. 13

MASTER AND SLAVE MODE OPERATION ............................................................................................. 14

AUDIO DATA FORMATS .......................................................................................................................... 14

DIGITAL FILTER CHARACTERISTICS ...............................................................16

ADC FILTER RESPONSE............................................................................................ 16

APPLICATIONS INFORMATION .........................................................................18

RECOMMENDED EXTERNAL COMPONENTS........................................................... 18

AUDIO INPUT PATHS............................................................................................................................... 18

POWER SUPPLY DECOUPLING ............................................................................................................. 18

RECOMMENDED EXTERNAL COMPONENTS DIAGRAM ...................................................................... 19

PCB LAYOUT CONSIDERATIONS.............................................................................. 20

PACKAGE DIMENSIONS ....................................................................................21

IMPORTANT NOTICE ..........................................................................................22

ADDRESS:................................................................................................................... 22

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PTD, December 2010, Rev 2.2

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