AD9983A Datasheet, PDF (2/44 Pages) Analog Devices – High Performance 8-Bit Display Interface

AD9983A
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Specifications..................................................................................... 3
Analog Interface Characteristics ................................................ 3
Absolute Maximum Ratings............................................................ 5
Explanation of Test Levels ........................................................... 5
Thermal Resistance ...................................................................... 5
ESD Caution.................................................................................. 5
Pin Configurations and Function Descriptions ........................... 6
Theory of Operation ...................................................................... 11
Digital Inputs .............................................................................. 11
Analog Input Signal Handling.................................................. 11
Hsync and Vsync Inputs............................................................ 11
Serial Control Port ..................................................................... 11
Output Signal Handling............................................................. 11
Clamping ..................................................................................... 11
Gain and Offset Control............................................................ 12
Sync-on-Green............................................................................ 13
Reference Bypassing................................................................... 13
Clock Generation ....................................................................... 14
Sync Processing........................................................................... 16
Power Management.................................................................... 19
Timing Diagrams........................................................................ 19
Hsync Timing ............................................................................. 20
Coast Timing............................................................................... 21
Output Formatter ....................................................................... 21
Preliminary Technical Data
2-Wire Serial Control Port ............................................................ 22
Data Transfer via Serial Interface............................................. 22
2-Wire Serial Register Map ........................................................... 24
2-Wire Serial Control Registers.................................................... 30
Chip Identification ..................................................................... 30
PLL Divider Control .................................................................. 30
Clock Generator Control .......................................................... 30
Phase Adjust................................................................................ 30
Input Gain ................................................................................... 31
Input Offset ................................................................................. 31
Hsync Controls ........................................................................... 31
Vsync Controls ........................................................................... 32
Coast and Clamp Controls........................................................ 33
SOG Control ............................................................................... 34
Input and Power Control........................................................... 35
Output Control ........................................................................... 36
Sync Processing .......................................................................... 37
Detection Status.......................................................................... 37
Polarity Status ............................................................................. 38
Hsync Count ............................................................................... 38
Test Registers............................................................................... 38
PCB Layout Recommendations.................................................... 40
Analog Interface Inputs ............................................................. 40
Outputs (Both Data and Clocks).............................................. 41
Digital Inputs .............................................................................. 41
Outline Dimensions ....................................................................... 42
Ordering Guide .......................................................................... 42
Rev. PrA | Page 2 of 44