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AD9887AKS-100 Scheda tecnica(PDF) 2 Page - Analog Devices |
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AD9887AKS-100 Scheda tecnica(HTML) 2 Page - Analog Devices |
2 / 52 page AD9887A Rev. B | Page 2 of 52 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Analog Interface ........................................................................... 3 Digital Interface ............................................................................ 5 Absolute Maximum Ratings............................................................ 7 Explanation of Test Levels ........................................................... 7 ESD Caution.................................................................................. 7 Pin Configuration and Function Descriptions............................. 8 Pin Function Details—Pins Shared Between Digital and Analog Interfaces........................................................................ 11 Pin Function Details—Analog Interface ................................. 13 Pin Function Details—Digital Interface.................................. 16 Theory of Operation and Design Guide—Analog Interface .... 17 General Description................................................................... 17 Input Signal Handling................................................................ 17 HSYNC and VSYNC Inputs...................................................... 17 Clamping ..................................................................................... 17 Gain and Offset Control ............................................................ 18 Sync-on-Green Input ................................................................. 19 Clock Generation ....................................................................... 19 Alternate Pixel Sampling Mode ................................................ 22 Timing—Analog Interface ........................................................ 23 Theory of Operation—Interface Detection ................................ 27 Active Interface Detection and Selection ................................ 27 Hot-Plug Detect.......................................................................... 27 Power Management ................................................................... 27 Scan Function ............................................................................. 28 Theory of Operation—Digital Interface...................................... 29 Capturing Encoded Data........................................................... 29 Data Frames ................................................................................ 29 Special Characters ...................................................................... 29 Channel Resynchronization...................................................... 29 Data Decoder .............................................................................. 29 HDCP .......................................................................................... 29 General Timing Diagrams—Digital Interface............................ 31 Timing Mode Diagrams—Digital Interface ........................... 31 2-Wire Serial Register Map ........................................................... 32 2-Wire Serial Control Register Details.................................... 35 Theory of Operation—Sync Processing ...................................... 48 Sync Stripper ............................................................................... 48 Sync Separator ............................................................................ 48 PCB Layout Recommendations.................................................... 49 Analog Interface Inputs ............................................................. 49 Digital Interface Inputs.............................................................. 49 Power Supply Bypassing ............................................................ 49 PLL ............................................................................................... 50 Outputs—Both Data and Clocks.............................................. 50 Digital Inputs .............................................................................. 50 Voltage Reference ....................................................................... 50 Outline Dimensions ....................................................................... 51 Ordering Guide .......................................................................... 51 REVISION HISTORY 3/07—Rev. A to Rev. B Changes to Figure 1.......................................................................... 1 Changes to Figure 28...................................................................... 27 Changes to Figure 37 and Figure 40............................................. 31 12/05—Rev. 0 to Rev. A Updated Format..................................................................Universal Added Pb-Free Package .....................................................Universal Changes to Figure 1.......................................................................... 1 Changes to Specifications ................................................................ 4 Changes to Table 4.......................................................................... 10 Deleted Analog Interface Pin List Table ...................................... 11 Added Figure 3................................................................................ 18 Added TV Section in Table 7........................................................ 22 Deleted Digital Interface Pin List Table....................................... 24 Changes to Theory of Operation (Interface Detection) Section........................................................ 28 Added Hot-Plug Detect Section ................................................... 28 Changes to Table 8.......................................................................... 29 Changes to Figure 32...................................................................... 32 Changes to Control Bits Section................................................... 44 Change to Figure 42 ....................................................................... 48 Updated Outline Dimensions....................................................... 53 Changes to Ordering Guide .......................................................... 53 5/03—Revision 0: Initial Version |
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