adau1461 Analog Devices, Inc., adau1461 Datasheet - Page 2

• Manufacturer Part Number: adau1461
• Description: Sigmadsp Stereo, Low Power, 96 Khz, 24-bit Audio Codec With Integrated Pll Adau1461
• Manufacturer: Analog Devices, Inc.

ADAU1461
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings .......................................................... 12
Pin Configuration and Function Descriptions ........................... 13
Typical Performance Characteristics ........................................... 15
System Block Diagrams ................................................................. 18
Theory of Operation ...................................................................... 21
Startup, Initialization, and Power ................................................. 22
Clocking and Sampling Rates ....................................................... 24
Record Signal Path .......................................................................... 27
Automatic Level Control (ALC) ................................................... 30
REVISION HISTORY
6/10—Revision 0: Initial Version
Analog Performance Specifications, T
Analog Performance Specifications, −40°C < T
Power Supply Specifications........................................................ 7
Digital Filters ................................................................................. 8
Digital Input/Output Specifications........................................... 8
Digital Timing Specifications ..................................................... 9
Digital Timing Diagrams........................................................... 10
Thermal Resistance .................................................................... 12
ESD Caution ................................................................................ 12
Power-Up Sequence ................................................................... 22
Power Reduction Modes ............................................................ 22
Digital Power Supply .................................................................. 22
Input/Output Power Supply ...................................................... 22
Clock Generation and Management ........................................ 22
Core Clock ................................................................................... 24
Sampling Rates ............................................................................ 25
PLL ............................................................................................... 25
Input Signal Paths ....................................................................... 27
Analog-to-Digital Converters ................................................... 29
ALC Parameters .......................................................................... 30
Noise Gate Function .................................................................. 31
A
= 25°C ....................... 3
A
< +105°C ... 5
Rev. 0 | Page 2 of 88
Playback Signal Path ...................................................................... 33
Control Ports ................................................................................... 36
Serial Data Input/Output Ports .................................................... 40
Applications Information .............................................................. 42
DSP Core ......................................................................................... 43
Program RAM, Parameter RAM, and Data RAM ..................... 45
General-Purpose Input/Output .................................................... 48
Control Registers ............................................................................ 49
Outline Dimensions ....................................................................... 88
Output Signal Paths ................................................................... 33
Headphone Output .................................................................... 34
Pop-and-Click Suppression ...................................................... 35
Line Outputs ............................................................................... 35
Burst Mode Writing and Reading ............................................ 36
I
SPI Port ........................................................................................ 39
Power Supply Bypass Capacitors .............................................. 42
GSM Noise Filter ........................................................................ 42
Grounding ................................................................................... 42
Exposed Pad PCB Design ......................................................... 42
Signal Processing ........................................................................ 43
Architecture ................................................................................ 43
Program Counter ....................................................................... 43
Features ........................................................................................ 43
Startup .......................................................................................... 43
Numeric Formats ....................................................................... 44
Programming .............................................................................. 44
Program RAM ............................................................................ 45
Parameter RAM .......................................................................... 45
Data RAM ................................................................................... 45
Read/Write Data Formats ......................................................... 45
Software Safeload ....................................................................... 46
Software Slew .............................................................................. 47
GPIO Pins Set from the Control Port ...................................... 48
Control Register Details ............................................................ 50
Ordering Guide .......................................................................... 88
Automotive Products ................................................................. 88
2
C Port ........................................................................................ 36