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ADAU1761 Arkusz danych(PDF) 3 Page - Analog Devices |
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ADAU1761 Arkusz danych(HTML) 3 Page - Analog Devices |
3 / 93 page ADAU1761 Rev. C | Page 2 of 92 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 3 Specifications..................................................................................... 4 Analog Performance Specifications ........................................... 4 Power Supply Specifications........................................................ 7 Typical Current Consumption.................................................... 8 Typical Power Management Measurements ............................. 9 Digital Filters............................................................................... 10 Digital Input/Output Specifications......................................... 10 Digital Timing Specifications ................................................... 11 Digital Timing Diagrams........................................................... 12 Absolute Maximum Ratings.......................................................... 14 Thermal Resistance .................................................................... 14 ESD Caution................................................................................ 14 Pin Configuration and Function Descriptions........................... 15 Typical Performance Characteristics ........................................... 17 System Block Diagrams ................................................................. 20 Theory of Operation ...................................................................... 23 Startup, Initialization, and Power ................................................. 24 Power-Up Sequence ................................................................... 24 Power Reduction Modes............................................................ 24 Digital Power Supply.................................................................. 24 Input/Output Power Supply...................................................... 24 Clock Generation and Management........................................ 24 Clocking and Sampling Rates ....................................................... 26 Core Clock................................................................................... 26 Sampling Rates............................................................................ 27 PLL ............................................................................................... 27 Record Signal Path.......................................................................... 29 Input Signal Paths....................................................................... 29 Analog-to-Digital Converters................................................... 31 Automatic Level Control (ALC) ................................................... 32 ALC Parameters.......................................................................... 32 Noise Gate Function .................................................................. 33 Playback Signal Path ...................................................................... 35 Output Signal Paths ................................................................... 35 Headphone Output .................................................................... 36 Pop-and-Click Suppression ...................................................... 37 Line Outputs ............................................................................... 37 Control Ports................................................................................... 38 Burst Mode Writing and Reading ............................................ 38 I2C Port ........................................................................................ 38 SPI Port ........................................................................................ 41 Serial Data Input/Output Ports .................................................... 42 Applications Information .............................................................. 44 Power Supply Bypass Capacitors.............................................. 44 GSM Noise Filter ........................................................................ 44 Grounding ................................................................................... 44 Exposed Pad PCB Design ......................................................... 44 DSP Core ......................................................................................... 45 Signal Processing........................................................................ 45 Architecture ................................................................................ 45 Program Counter ....................................................................... 45 Features........................................................................................ 45 Startup.......................................................................................... 45 Numeric Formats ....................................................................... 46 Programming.............................................................................. 46 Program RAM, Parameter RAM, and Data RAM ..................... 47 Program RAM ............................................................................ 47 Parameter RAM.......................................................................... 47 Data RAM ................................................................................... 47 Read/Write Data Formats ......................................................... 47 Software Safeload ....................................................................... 48 Software Slew .............................................................................. 49 General-Purpose Input/Output.................................................... 50 GPIO Pins Set from the Control Port...................................... 50 Control Registers ............................................................................ 51 Control Register Details ............................................................ 52 Outline Dimensions ....................................................................... 92 Ordering Guide .......................................................................... 92 |
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