CS47L24 datasheet(5/256 Pages) CIRRUS

5 / 256 page

CS47L24

Rev 4.1

FLL INTERRUPTS AND GPIO OUTPUT .................................................................................................................................................................... 189

EXAMPLE FLL CALCULATION................................................................................................................................................................................... 189

EXAMPLE FLL SETTINGS .......................................................................................................................................................................................... 190

CONTROL INTERFACE

................................................................................................................................ 192

CONTROL WRITE SEQUENCER

................................................................................................................. 194

INITIATING A SEQUENCE.......................................................................................................................................................................................... 194

AUTOMATIC SAMPLE RATE DETECTION SEQUENCES ........................................................................................................................................ 195

GENERAL PURPOSE (GPIO) CONTROL SEQUENCES........................................................................................................................................... 196

DRC SIGNAL DETECT SEQUENCES ........................................................................................................................................................................ 197

BOOT SEQUENCE...................................................................................................................................................................................................... 198

SEQUENCER OUTPUTS AND READBACK............................................................................................................................................................... 198

PROGRAMMING A SEQUENCE ................................................................................................................................................................................ 199

SEQUENCER MEMORY DEFINITION........................................................................................................................................................................ 200

CHARGE PUMP, REGULATORS AND VOLTAGE REFERENCE

............................................................... 201

CHARGE PUMP (CP) CONTROL ............................................................................................................................................................................... 201

MICROPHONE BIAS (MICBIAS) CONTROL .............................................................................................................................................................. 201

VOLTAGE REFERENCE CIRCUIT ............................................................................................................................................................................. 201

BLOCK DIAGRAM AND CONTROL REGISTERS ...................................................................................................................................................... 202

JTAG INTERFACE

........................................................................................................................................ 204

THERMAL SHUTDOWN AND SHORT CIRCUIT PROTECTION

................................................................. 204

POWER-ON RESET (POR)

.......................................................................................................................... 206

HARDWARE RESET, SOFTWARE RESET, AND DEVICE ID

..................................................................... 208

.............................................................................................................................. 210

APPLICATIONS INFORMATION

..................................................................................................... 241

RECOMMENDED EXTERNAL COMPONENTS

........................................................................................... 241

DIGITAL MICROPHONE INPUT PATHS .................................................................................................................................................................... 241

MICROPHONE BIAS CIRCUIT ................................................................................................................................................................................... 241

HEADPHONE DRIVER OUTPUT PATH ..................................................................................................................................................................... 242

SPEAKER DRIVER OUTPUT PATH ........................................................................................................................................................................... 243

POWER SUPPLY / REFERENCE DECOUPLING ...................................................................................................................................................... 245

CHARGE PUMP COMPONENTS ............................................................................................................................................................................... 246

RECOMMENDED EXTERNAL COMPONENTS DIAGRAM ....................................................................................................................................... 247

RESETS SUMMARY

..................................................................................................................................... 248

OUTPUT SIGNAL DRIVE STRENGTH CONTROL

...................................................................................... 249

DIGITAL AUDIO INTERFACE CLOCKING CONFIGURATIONS

.................................................................. 250

PCB LAYOUT CONSIDERATIONS

............................................................................................................... 253

PACKAGE DIMENSIONS

................................................................................................................ 254

REVISION HISTORY

........................................................................................................................ 255

CS47L24 Datasheet(PDF) 5 Page - Cirrus Logic

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