WM8775
TABLE OF CONTENTS
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DESCRIPTION ................................................................................................................1
FEATURES......................................................................................................................1
BLOCK DIAGRAM ..........................................................................................................1
PIN CONFIGURATION....................................................................................................3
ORDERING INFORMATION ...........................................................................................3
PIN DESCRIPTION .........................................................................................................4
ABSOLUTE MAXIMUM RATINGS..................................................................................5
RECOMMENDED OPERATING CONDITIONS ..............................................................5
ELECTRICAL CHARACTERISTICS ...............................................................................6
TERMINOLOGY ......................................................................................................................7
MASTER CLOCK TIMING...............................................................................................7
DIGITAL AUDIO INTERFACE – MASTER MODE ...................................................................7
DIGITAL AUDIO INTERFACE – SLAVE MODE ......................................................................8
3-WIRE MPU INTERFACE TIMING ......................................................................................10
2-WIRE MPU INTERFACE TIMING ......................................................................................10
DEVICE DESCRIPTION................................................................................................12
INTRODUCTION ...................................................................................................................12
AUDIO DATA SAMPLING RATES.........................................................................................12
POWERDOWN MODES .......................................................................................................13
POWER-ON-RESET .............................................................................................................14
DIGITAL AUDIO INTERFACE ...............................................................................................15
CONTROL INTERFACE OPERATION ..................................................................................18
CONTROL INTERFACE REGISTERS ..................................................................................19
LIMITER / AUTOMATIC LEVEL CONTROL (ALC) ................................................................23
REGISTER MAP ...................................................................................................................28
DIGITAL FILTER CHARACTERISTICS ........................................................................32
ADC FILTER RESPONSES...................................................................................................32
ADC HIGH PASS FILTER .....................................................................................................32
APPLICATIONS INFORMATION ..................................................................................33
EXTERNAL CIRCUIT CONFIGURATION .............................................................................33
RECOMMENDED EXTERNAL COMPONENTS ....................................................................34
IMPORTANT NOTICE ...................................................................................................36
ADDRESS: ............................................................................................................................36
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PP Rev 1.8, June 2004
2
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
