Table Of Contents - Analog Devices ADV7181B Manual

Multiformat sdtv video decoder
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ADV7181B

TABLE OF CONTENTS

Introduction ...................................................................................... 4
Analog Front End ......................................................................... 4
Standard Definition Processor ................................................... 4
Functional Block Diagram .............................................................. 5
Specifications..................................................................................... 6
Electrical Characteristics............................................................. 6
Video Specifications..................................................................... 7
Timing Specifications .................................................................. 8
Analog Specifications................................................................... 8
Thermal Specifications ................................................................ 9
Timing Diagrams.......................................................................... 9
Absolute Maximum Ratings.......................................................... 10
ESD Caution................................................................................ 10
Pin Configuration and Function Descriptions........................... 11
Analog Front End ........................................................................... 13
Analog Input Muxing ................................................................ 13
Global Control Registers ............................................................... 15
Power-Save Modes...................................................................... 15
Reset Control .............................................................................. 15
Global Pin Control ..................................................................... 16
Global Status Registers................................................................... 18
Identification............................................................................... 18
Status 1 ......................................................................................... 18
Autodetection Result.................................................................. 18
Status 2 ......................................................................................... 18
Status 3 ......................................................................................... 18
Standard Definition Processor (SDP).......................................... 19
SD Luma Path ............................................................................. 19
SD Chroma Path......................................................................... 19
Sync Processing........................................................................... 20
VBI Data Recovery..................................................................... 20
General Setup.............................................................................. 20
Color Controls ............................................................................ 22
Clamp Operation........................................................................ 24
Luma Filter .................................................................................. 25
Chroma Filter.............................................................................. 28
Gain Operation........................................................................... 29
Chroma Transient Improvement (CTI) .................................. 32
Digital Noise Reduction (DNR) ............................................... 33
Comb Filters................................................................................ 33
AV Code Insertion and Controls ............................................. 36
Synchronization Output Signals............................................... 38
Sync Processing .......................................................................... 46
VBI Data Decode ....................................................................... 46
Pixel Port Configuration ............................................................... 59
MPU Port Description................................................................... 60
Register Accesses ........................................................................ 61
Register Programming............................................................... 61
2
C Sequencer.............................................................................. 61
2
C Register Maps ........................................................................... 62
2
C Register Map Details ........................................................... 67
2
C Programming Examples.......................................................... 88
Examples for 28 MHz Clock..................................................... 88
Examples for 27 MHz Clock..................................................... 92
PCB Layout Recommendations.................................................... 95
Analog Interface Inputs ............................................................. 95
Power Supply Decoupling ......................................................... 95
PLL ............................................................................................... 95
Digital Outputs (Both Data and Clocks) ................................ 95
Digital Inputs .............................................................................. 96
Antialiasing Filters ..................................................................... 96
Crystal Load Capacitor Value Selection.................................. 96
Rev. B | Page 2 of 100

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