WM8962B datasheet(5/295 Pages) WOLFSON

5 / 295 page

WM8962

Rev 4.3

DIGITAL AUDIO INTERFACE .................................................................................... 138

MASTER AND SLAVE MODE OPERATION ........................................................................................... 139

OPERATION WITH TDM......................................................................................................................... 139

BCLK FREQUENCY ................................................................................................................................ 140

AUDIO DATA FORMATS (NORMAL MODE) .......................................................................................... 140

AUDIO DATA FORMATS (TDM MODE).................................................................................................. 142

DIGITAL AUDIO INTERFACE CONTROL.................................................................. 144

AUDIO INTERFACE TRI-STATE............................................................................................................. 145

BCLK AND LRCLK CONTROL................................................................................................................ 145

COMPANDING ........................................................................................................................................ 146

LOOPBACK ............................................................................................................................................. 148

CLOCKING AND SAMPLE RATES ............................................................................ 149

SYSCLK CONTROL ................................................................................................................................ 150

AUTOMATIC CLOCKING CONFIGURATION ......................................................................................... 152

DSP, ADC, DAC CLOCK CONTROL....................................................................................................... 154

CLASS D, 256K, DC SERVO CLOCK CONTROL................................................................................... 155

OPCLK CONTROL .................................................................................................................................. 156

TOCLK, DBCLK CONTROL .................................................................................................................... 156

BCLK AND LRCLK CONTROL................................................................................................................ 157

CONTROL INTERFACE CLOCKING ...................................................................................................... 157

INTERNAL / EXTERNAL CLOCK GENERATION ...................................................... 158

START-UP OPTIONS FOR INTERNAL / EXTERNAL CLOCK GENERATION ....................................... 159

INTERNAL OSCILLATOR CONTROL ..................................................................................................... 160

CLKOUT CONTROL................................................................................................................................ 162

FREQUENCY LOCKED LOOP (FLL) ...................................................................................................... 164

FREE-RUNNING FLL CLOCK ................................................................................................................. 168

EXAMPLE FLL CALCULATION............................................................................................................... 169

PHASE LOCKED LOOP (PLL) ................................................................................................................ 170

EXAMPLE PLL CALCULATION .............................................................................................................. 174

GENERAL PURPOSE INPUT/OUTPUT (GPIO)......................................................... 175

INTERRUPTS ............................................................................................................ 179

CONTROL INTERFACE............................................................................................. 184

SELECTION OF CONTROL INTERFACE MODE ................................................................................... 184

2-WIRE (I2C) CONTROL MODE ............................................................................................................. 185

3-WIRE (SPI) CONTROL MODE ............................................................................................................. 188

4-WIRE (SPI) CONTROL MODE ............................................................................................................. 189

CONTROL WRITE SEQUENCER .............................................................................. 190

INITIATING A SEQUENCE...................................................................................................................... 190

PROGRAMMING A SEQUENCE ............................................................................................................ 191

DEFAULT SEQUENCES ......................................................................................................................... 194

THERMAL SHUTDOWN ............................................................................................ 198

SOFTWARE RESET AND CHIP ID............................................................................ 199

DIGITAL FILTER CHARACTERISTICS ............................................................ 274

DAC FILTER RESPONSES ....................................................................................... 275

ADC FILTER RESPONSES ....................................................................................... 277

ADC HIGH PASS FILTER RESPONSES ................................................................................................ 278

DE-EMPHASIS FILTER RESPONSES....................................................................... 279

APPLICATIONS INFORMATION ...................................................................... 280

ANALOGUE INPUT PATHS .................................................................................................................... 280

MICROPHONE BIAS CIRCUIT ............................................................................................................... 280

CHARGE PUMP COMPONENTS ........................................................................................................... 282

RECOMMENDED EXTERNAL COMPONENTS DIAGRAM.................................................................... 283

WM8962B Datasheet(PDF) 5 Page - Wolfson Microelectronics plc

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