adau1442 Analog Devices, Inc., adau1442 Datasheet - Page 2

• Manufacturer Part Number: adau1442
• Description: Sigmadsp Digital Audio Processor With Flexible Audio Routing Matrix
• Manufacturer: Analog Devices, Inc.

Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 3
Specifications ..................................................................................... 4
Absolute Maximum Ratings............................................................ 9
Pin Configuration and Function Descriptions........................... 10
Theory of Operation ...................................................................... 15
Digital Timing Specifications ..................................................... 6
Thermal Resistance ...................................................................... 9
ESD Caution .................................................................................. 9
System Block Diagram ............................................................... 15
Overview ...................................................................................... 16
Initialization ................................................................................ 18
Master Clock and PLL ............................................................... 19
Voltage Regulator ....................................................................... 23
Control Port ................................................................................ 24
Serial Data Input/Output........................................................... 29
Serial Input Ports ........................................................................ 35
Serial Input Port Modes and Settings ...................................... 37
Serial Output Ports ..................................................................... 39
Serial Output Port Modes and Settings ................................... 40
Flexible Audio Routing Matrix (FARM) ................................. 45
Flexible Audio Routing Matrix Modes and Settings.............. 51
Asynchronous Sample Rate Converters .................................. 57
ASRC Modes and Settings......................................................... 57
Rev. PrA | Page 2 of 92
Interfacing with Other Devices .................................................... 70
Flexible TDM Modes ..................................................................... 75
Software Features ............................................................................ 80
Global RAM and Register Map .................................................... 81
Applications Information .............................................................. 86
Outline Dimensions ....................................................................... 91
DSP Core ..................................................................................... 59
DSP Core Modes and Settings.................................................. 60
Reliability Features ..................................................................... 61
RAMs ........................................................................................... 63
S/PDIF Receiver and Transmitter ............................................ 64
S/PDIF Modes and Settings ...................................................... 65
Multipurpose Pins...................................................................... 68
Multipurpose Pins Modes and Settings................................... 68
Auxiliary ADC............................................................................ 69
Auxiliary ADC Modes and Settings ........................................ 69
Drive Strength Modes and Settings ......................................... 70
Serial Input Flexible TDM Interface Modes and Settings ...........75
Serial Output Flexible TDM Interface Modes and Settings ........77
Software Safeload ....................................................................... 80
Software Slew .............................................................................. 80
Overview of Register Address Map ......................................... 81
Details of Register Address Map .............................................. 81
Layout Recommendations ........................................................ 86
Typical Application Schematics................................................ 88
Ordering Guide .......................................................................... 91