WM8721 / WM8721L
Production 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 .........................................................................................................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
PD Rev 4.0 November 2004
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
