ADAU1462/ADAU1466
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Software Features ....................................................................... 86
Pin Drive Strength, Slew Rate, and Pull Configuration........ 87
Global RAM and Control Register Map...................................... 89
Random Access Memory .......................................................... 89
Control Registers........................................................................ 92
Control Register Details ................................................................ 98
PLL Configuration Registers .................................................... 98
Clock Generator Registers ...................................................... 103
Power Reduction Registers ..................................................... 108
Audio Signal Routing Registers.............................................. 111
Serial Port Configuration Registers....................................... 117
Flexible TDM Interface Registers........................................... 121
DSP Core Control Registers.................................................... 124
Debug and Reliability Registers.............................................. 129
Software Panic Value 0 Register ............................................. 136
Software Panic Value 1 Register ............................................. 136
DSP Program Execution Registers......................................... 139
Panic Mask Registers ............................................................... 142
Multipurpose Pin Configuration Registers .......................... 155
ASRC Status and Control Registers ....................................... 160
Auxiliary ADC Registers......................................................... 164
S/PDIF Interface Registers...................................................... 165
Hardware Interfacing Registers.............................................. 178
Soft Reset Register.................................................................... 196
Applications Information ............................................................ 197
PCB Design Considerations ................................................... 197
Typical Applications Block Diagram ..................................... 199
Example PCB Layout ............................................................... 200
PCB Manufacturing Guidelines ............................................. 201
Outline Dimensions..................................................................... 202
Ordering Guide ........................................................................ 202
Automotive Products............................................................... 202
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 3
General Description......................................................................... 4
Differences Between the ADAU1466 and ADAU1462 ........... 4
Specifications..................................................................................... 5
Electrical Characteristics............................................................. 7
Timing Specifications .................................................................. 9
Absolute Maximum Ratings.......................................................... 17
Thermal Considerations............................................................ 17
ESD Caution................................................................................ 17
Pin Configuration and Function Descriptions........................... 18
Theory of Operation ...................................................................... 22
System Block Diagram............................................................... 22
Overview...................................................................................... 22
Initialization ................................................................................ 24
Master Clock, PLL, and Clock Generators.............................. 28
Power Supplies, Voltage Regulator, and Hardware Reset...... 33
Temperature Sensor Diode........................................................ 34
Slave Control Ports..................................................................... 35
Slave Control Port Addressing.................................................. 35
Slave Port to DSP Core Address Mapping .............................. 36
Master Control Ports.................................................................. 44
Self Boot....................................................................................... 45
Audio Signal Routing................................................................. 48
Serial Data Input/Output........................................................... 57
Flexible TDM Interface.............................................................. 68
Asynchronous Sample Rate Converters.................................. 74
S/PDIF Interface ......................................................................... 74
Digital PDM Microphone Interface......................................... 76
Multipurpose Pins...................................................................... 77
Auxiliary ADC............................................................................ 80
SigmaDSP Core .......................................................................... 80
Rev. B | Page 2 of 202
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