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WM8766EDS Datasheet(PDF) 2 Page - Wolfson Microelectronics plc |
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2 / 32 page WM8766 Preliminary Technical Data w PTD Rev 2.3 February 2004 2 TABLE OF CONTENTS DESCRIPTION .......................................................................................................1 FEATURES.............................................................................................................1 APPLICATIONS .....................................................................................................1 BLOCK DIAGRAM .................................................................................................1 TABLE OF CONTENTS .........................................................................................2 PIN CONFIGURATION 28 LEAD SSOP ...............................................................3 ORDERING INFORMATION ..................................................................................3 PIN DESCRIPTION – 28 PIN SSOP ......................................................................4 ABSOLUTE MAXIMUM RATINGS .........................................................................5 RECOMMENDED OPERATING CONDITIONS .....................................................6 ELECTRICAL CHARACTERISTICS ......................................................................6 TERMINOLOGY ............................................................................................................ 7 MASTER CLOCK TIMING ............................................................................................. 7 DIGITAL AUDIO INTERFACE – MASTER MODE ......................................................... 8 TABLE 2 DIGITAL AUDIO DATA TIMING – MASTER MODE ...................................... 8 DIGITAL AUDIO INTERFACE – SLAVE MODE ............................................................ 9 MPU INTERFACE TIMING .......................................................................................... 10 DEVICE DESCRIPTION .......................................................................................11 INTRODUCTION ......................................................................................................... 11 AUDIO DATA SAMPLING RATES............................................................................... 11 HARDWARE CONTROL MODES ............................................................................... 12 DIGITAL AUDIO INTERFACE ..................................................................................... 14 POWERDOWN MODES ............................................................................................. 17 ZERO DETECT ........................................................................................................... 18 SOFTWARE CONTROL INTERFACE OPERATION................................................... 18 CONTROL INTERFACE REGISTERS ........................................................................ 18 REGISTER MAP...................................................................................................26 DIGITAL FILTER CHARACTERISTICS ...............................................................27 DAC FILTER RESPONSES .................................................................................27 DIGITAL DE-EMPHASIS CHARACTERISTICS........................................................... 28 APPLICATIONS INFORMATION .........................................................................29 RECOMMENDED EXTERNAL COMPONENTS .......................................................... 29 SUGGESTED ANALOGUE LOW PASS POST DAC FILTERS ................................... 30 PACKAGE DIMENSIONS ....................................................................................31 IMPORTANT NOTICE ..........................................................................................32 ADDRESS: .................................................................................................................. 32 |
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