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WM8608EFT Datasheet(PDF) 2 Page - Wolfson Microelectronics plc |
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WM8608EFT Datasheet(HTML) 2 Page - Wolfson Microelectronics plc |
2 / 54 page WM8608 Product Preview w PP Rev 1.5 March 2004 2 TABLE OF CONTENTS DESCRIPTION .......................................................................................................1 FEATURES.............................................................................................................1 APPLICATIONS .....................................................................................................1 TABLE OF CONTENTS .........................................................................................2 PIN CONFIGURATION...........................................................................................4 ORDERING INFORMATION ..................................................................................4 ABSOLUTE MAXIMUM RATINGS .........................................................................6 ELECTRICAL CHARACTERISTICS ......................................................................7 TERMINOLOGY .....................................................................................................8 POWER CONSUMPTION ......................................................................................8 SIGNAL TIMING REQUIREMENTS .......................................................................9 POWER SUPPLY.......................................................................................................... 9 MASTER CLOCK TIMING ............................................................................................. 9 AUDIO INTERFACE TIMING – MASTER MODE ........................................................ 10 AUDIO INTERFACE TIMING – SLAVE MODE............................................................ 11 CONTROL INTERFACE TIMING – 3-WIRE MODE .................................................... 12 CONTROL INTERFACE TIMING – 2-WIRE MODE .................................................... 13 PWM OUTPUT TIMING .............................................................................................. 14 DEVICE DESCRIPTION .......................................................................................15 INTRODUCTION ......................................................................................................... 15 SIGNAL PATH............................................................................................................. 15 DIGITAL AUDIO INTERFACE ..................................................................................... 16 AUDIO INTERFACE CONTROL.................................................................................. 20 MASTER CLOCK AND AUDIO SAMPLE RATES........................................................ 21 SYNCHRONISER........................................................................................................ 24 CONTROL INTERFACE OPERATION ........................................................................ 25 INPUT PROCESSOR .................................................................................................. 26 BASS MANAGEMENT................................................................................................. 29 GRAPHIC EQUALISER............................................................................................... 31 DIGITAL DEEMPHASIS .............................................................................................. 33 DIGITAL VOLUME CONTROL .................................................................................... 33 SOFT MUTE AND AUTO-MUTE ................................................................................. 36 DYNAMIC PEAK COMPRESSOR ............................................................................... 37 INTERPOLATION FILTERS ........................................................................................ 41 PCM TO PWM CONVERTER ..................................................................................... 42 STANDBY, OUTPUT DISABLE AND RESET MODES ................................................ 45 EXTERNAL POWER SUPPLY CLOCK ....................................................................... 46 REGISTER MAP...................................................................................................47 FILTER RESPONSES ................................................................................................. 48 DIGITAL DE-EMPHASIS CHARACTERISTICS........................................................... 49 |
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