WM8945ECSSLASHR datasheet(4/169 Pages) WOLFSON

4 / 169 page

WM8945

Production Data

PD, May 2011, Rev 4.1

POWER MANAGEMENT ............................................................................................. 102

THERMAL SHUTDOWN .............................................................................................. 103

POWER ON RESET .................................................................................................... 104

RECOMMENDED POWER UP/DOWN SEQUENCE................................................... 106

SOFTWARE RESET AND DEVICE ID......................................................................... 107

DIGITAL FILTER CHARACTERISTICS ............................................................ 157

TERMINOLOGY ......................................................................................................................................157

ADC FILTER RESPONSE............................................................................................ 158

ADC HIGHPASS FILTER RESPONSE ........................................................................ 159

DAC FILTER RESPONSE............................................................................................ 160

APPLICATIONS INFORMATION ...................................................................... 162

RECOMMENDED EXTERNAL COMPONENTS.......................................................... 162

AUDIO INPUT PATHS.............................................................................................................................162

HEADPHONE / LINE OUTPUT PATHS ..................................................................................................162

BTL SPEAKER OUTPUT CONNECTION ...............................................................................................163

POWER SUPPLY DECOUPLING ...........................................................................................................163

MICROPHONE BIAS CIRCUIT ...............................................................................................................164

VIDEO BUFFER COMPONENTS............................................................................................................165

RECOMMENDED EXTERNAL COMPONENTS DIAGRAM....................................................................166

PCB LAYOUT CONSIDERATIONS ............................................................................. 166

PACKAGE DIMENSIONS.................................................................................. 167

IMPORTANT NOTICE ....................................................................................... 168

ADDRESS: ................................................................................................................... 168

REVISION HISTORY ......................................................................................... 169

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