WM8741 datasheet(3/63 Pages) WOLFSON

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WM8741

PP Rev 1.3 October 2007

TABLE OF CONTENTS

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

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

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

BLOCK DIAGRAM .................................................................................................2

TABLE OF CONTENTS .........................................................................................3

PIN CONFIGURATION...........................................................................................5

ORDERING INFORMATION ..................................................................................5

PIN DESCRIPTION (SOFTWARE CONTROL MODE) ..........................................6

PIN DESCRIPTION (HARDWARE CONTROL MODE)..........................................8

ABSOLUTE MAXIMUM RATINGS.......................................................................10

THERMAL PERFORMANCE ...............................................................................10

RECOMMENDED OPERATING CONDITIONS ...................................................11

ELECTRICAL CHARACTERISTICS ....................................................................11

MASTER CLOCK TIMING ........................................................................................... 13

PCM DIGITAL AUDIO INTERFACE TIMINGS............................................................. 13

DSD AUDIO INTERFACE TIMINGS............................................................................ 14

CONTROL INTERFACE TIMING – 3-WIRE MODE .................................................... 15

CONTROL INTERFACE TIMING – 2-WIRE MODE .................................................... 16

INTERNAL POWER ON RESET CIRCUIT.................................................................. 17

DEVICE DESCRIPTION.......................................................................................19

INTRODUCTION ......................................................................................................... 19

CLOCKING SCHEMES ............................................................................................... 19

CONTROL INTERFACE.............................................................................................. 19

SOFTWARE CONTROL INTERFACE......................................................................... 20

3-WIRE (SPI COMPATIBLE) SERIAL CONTROL MODE ....................................................................................................... 20

3-WIRE CONTROL INTERFACE DAISY CHAINING............................................................................................................... 20

2-WIRE SERIAL CONTROL MODE ................................................................................................................................... 22

DIGITAL AUDIO INTERFACE ..................................................................................... 22

PCM MODE................................................................................................................................................................. 22

PCM DIGITAL AUDIO INTERFACE ................................................................................................................................... 23

LEFT JUSTIFIED MODE.................................................................................................................................................. 23

RIGHT JUSTIFIED MODE................................................................................................................................................ 24

2S MODE....................................................................................................................................................................24

DSP MODE A .............................................................................................................................................................. 25

DSP MODE B .............................................................................................................................................................. 25

PCM MODE SAMPLING RATES ...................................................................................................................................... 25

8FS MODE .................................................................................................................................................................. 26

8FS MODE SAMPLING RATES ....................................................................................................................................... 27

AUDIO INTERFACE DAISY CHAINING ...............................................................................................................................27

DSD MODE ................................................................................................................. 28

DSD DIRECT ............................................................................................................................................................... 28

DSD PLUS MODE ......................................................................................................................................................... 28

DSD DIGITAL AUDIO INTERFACE ................................................................................................................................... 28

SOFTWARE CONTROL MODE .................................................................................. 29

DSD AND PCM MODE SWITCHING ................................................................................................................................29

PCM DIGITAL AUDIO INTERFACE CONTROL REGISTERS .................................................................................................. 29

LRCLK POLARITY........................................................................................................................................................ 30

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