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ADAU1461WBCPZ-R7 Datasheet(PDF) 2 Page - Analog Devices |
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ADAU1461WBCPZ-R7 Datasheet(HTML) 2 Page - Analog Devices |
2 / 88 page ADAU1461 Rev. 0 | Page 2 of 88 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Analog Performance Specifications, TA = 25°C ....................... 3 Analog Performance Specifications, −40°C < TA < +105°C ... 5 Power Supply Specifications........................................................ 7 Digital Filters................................................................................. 8 Digital Input/Output Specifications........................................... 8 Digital Timing Specifications ..................................................... 9 Digital Timing Diagrams........................................................... 10 Absolute Maximum Ratings.......................................................... 12 Thermal Resistance .................................................................... 12 ESD Caution................................................................................ 12 Pin Configuration and Function Descriptions........................... 13 Typical Performance Characteristics ........................................... 15 System Block Diagrams ................................................................. 18 Theory of Operation ...................................................................... 21 Startup, Initialization, and Power ................................................. 22 Power-Up Sequence ................................................................... 22 Power Reduction Modes............................................................ 22 Digital Power Supply.................................................................. 22 Input/Output Power Supply...................................................... 22 Clock Generation and Management........................................ 22 Clocking and Sampling Rates ....................................................... 24 Core Clock................................................................................... 24 Sampling Rates............................................................................ 25 PLL ............................................................................................... 25 Record Signal Path.......................................................................... 27 Input Signal Paths....................................................................... 27 Analog-to-Digital Converters................................................... 29 Automatic Level Control (ALC) ................................................... 30 ALC Parameters.......................................................................... 30 Noise Gate Function .................................................................. 31 Playback Signal Path ...................................................................... 33 Output Signal Paths ................................................................... 33 Headphone Output .................................................................... 34 Pop-and-Click Suppression ...................................................... 35 Line Outputs ............................................................................... 35 Control Ports................................................................................... 36 Burst Mode Writing and Reading ............................................ 36 I2C Port ........................................................................................ 36 SPI Port ........................................................................................ 39 Serial Data Input/Output Ports .................................................... 40 Applications Information .............................................................. 42 Power Supply Bypass Capacitors.............................................. 42 GSM Noise Filter ........................................................................ 42 Grounding ................................................................................... 42 Exposed Pad PCB Design ......................................................... 42 DSP Core ......................................................................................... 43 Signal Processing........................................................................ 43 Architecture ................................................................................ 43 Program Counter ....................................................................... 43 Features........................................................................................ 43 Startup.......................................................................................... 43 Numeric Formats ....................................................................... 44 Programming.............................................................................. 44 Program RAM, Parameter RAM, and Data RAM ..................... 45 Program RAM ............................................................................ 45 Parameter RAM.......................................................................... 45 Data RAM ................................................................................... 45 Read/Write Data Formats ......................................................... 45 Software Safeload ....................................................................... 46 Software Slew .............................................................................. 47 General-Purpose Input/Output.................................................... 48 GPIO Pins Set from the Control Port...................................... 48 Control Registers ............................................................................ 49 Control Register Details ............................................................ 50 Outline Dimensions ....................................................................... 88 Ordering Guide .......................................................................... 88 Automotive Products ................................................................. 88 REVISION HISTORY 6/10—Revision 0: Initial Version |
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