wm8770 Wolfson Microelectronics plc, wm8770 Datasheet - Page 2

• Manufacturer Part Number: wm8770
• Description: 24-bit, 192khz 8-channel Codec With Volume Control
• Manufacturer: Wolfson Microelectronics plc

WM8770
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.........................................................................6
ELECTRICAL CHARACTERISTICS ......................................................................7
MASTER CLOCK TIMING......................................................................................9
INTERNAL POWER ON RESET CIRCUIT ..........................................................14
DEVICE DESCRIPTION.......................................................................................17
REGISTER MAP...................................................................................................38
DIGITAL FILTER CHARACTERISTICS ...............................................................45
APPLICATIONS INFORMATION .........................................................................48
PACKAGE DIMENSIONS ....................................................................................51
IMPORTANT NOTICE ..........................................................................................52
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TERMINOLOGY ............................................................................................................ 8
DIGITAL AUDIO INTERFACE – MASTER MODE ......................................................... 9
DIGITAL AUDIO INTERFACE – SLAVE MODE .......................................................... 11
MPU INTERFACE TIMING .......................................................................................... 12
INTRODUCTION ......................................................................................................... 17
AUDIO DATA SAMPLING RATES............................................................................... 18
ZERO DETECT ........................................................................................................... 19
POWERDOWN MODES ............................................................................................. 20
DIGITAL AUDIO INTERFACE ..................................................................................... 20
CONTROL INTERFACE OPERATION ........................................................................ 24
CONTROL INTERFACE REGISTERS ........................................................................ 26
DAC FILTER RESPONSES......................................................................................... 45
ADC FILTER RESPONSES......................................................................................... 46
ADC HIGH PASS FILTER ........................................................................................... 46
DIGITAL DE-EMPHASIS CHARACTERISTICS........................................................... 47
RECOMMENDED EXTERNAL COMPONENTS .......................................................... 48
EXTERNAL CIRCUIT CONFIGURATION ................................................................... 49
ADDRESS: .................................................................................................................. 52
TABLE OF CONTENTS
PD Rev 4.2 March 2008
Production Data
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