WM8721 / WM8721L

Production Data

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PD Rev 4.0 November 2004

2

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

RECOMMENDED OPERATING CONDITIONS ..............................................................5

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

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

POWER CONSUMPTION ...............................................................................................7

MASTER CLOCK TIMING...............................................................................................8

DIGITAL AUDIO INTERFACE – MASTER MODE ...................................................................8

DIGITAL AUDIO INTERFACE – SLAVE MODE ......................................................................9

MPU INTERFACE TIMING ......................................................................................................9

DEVICE DESCRIPTION ................................................................................................11

INTRODUCTION ...................................................................................................................11

AUDIO SIGNAL PATH...........................................................................................................11

DEVICE OPERATION ...........................................................................................................16

AUDIO DATA SAMPLING RATES.........................................................................................21

ACTIVATING DSP AND DIGITAL AUDIO INTERFACE ........................................................25

SOFTWARE CONTROL INTERFACE...................................................................................25

POWER DOWN MODES ......................................................................................................27

REGISTER MAP ...................................................................................................................28

DAC FILTER RESPONSES ..........................................................................................32

DIGITAL DE-EMPHASIS CHARACTERISTICS.....................................................................33

RECOMMENDED EXTERNAL COMPONENTS ...........................................................35

PACKAGE DIMENSIONS .............................................................................................36

IMPORTANT NOTICE ...................................................................................................37

ADDRESS: ............................................................................................................................37