TMC22x5yA
PRODUCT SPECIFICATION
Table of Contents
Features ......................................................................1
Applications ...............................................................1
Description .................................................................1
Block Diagram ............................................................1
Contents .....................................................................2
List of Tables and Figures ........................................3
General Description ...................................................4
Input Processor...............................................................4
Adaptive Comb Filter.....................................................4
Output Processor ............................................................5
Parallel and Serial Microprocessor Interfaces................5
Pin Assignments ........................................................5
Pin Descriptions.........................................................6
Control Register Map.................................................8
Control Register Definitions ...................................11
Decoder Introduction...............................................40
YC Separation ..............................................................40
Comb Filter Architecture for YC Separation ...............41
YC Line-Based Comb Filters.......................................42
D1 Line-Based Comb Filters .......................................42
NTSC Frame and Field Based Decoders ...............42
Composite Frame-Based Comb Filters ........................42
Composite Field-Based Comb Filters ..........................42
PAL Field Comb Decoders ......................................42
Composite PAL Field Comb Filters.............................42
The TMC22x5yA Comb Filter Architecture ............43
TMC22x5yA Functional Description.......................44
Input Processor.............................................................44
Bandsplit Filter (BSF) ..................................................44
Comb Filter Input.........................................................45
Adaptive Comb Filter...................................................47
Comb Fails................................................................49
Comb Fail Detection ....................................................49
Generation of the Comb Fail Signals .....................50
Luma Error Signals ......................................................50
Hue and Saturation Error Signals.................................50
Picture Correlation .......................................................50
Adapting the Comb Filter ............................................50
XLUT ...........................................................................51
Digital Burst Locked Loop ..........................................53
Color Kill Counter .......................................................53
PAL Color Frame Bit ...................................................55
Hue Control..................................................................55
System Monitoring of the Burst Loop Error ................55
Clamp Circuit .............................................................. 55
Pedestal Removal ........................................................ 55
Clamp Generator ......................................................... 55
Luma Notch Filter ....................................................... 56
Matrix .......................................................................... 56
Programmable U Scalar............................................... 56
Programmable V Scalar............................................... 56
Programmable Y Scalar............................................... 56
Programmable MS Scalar............................................ 56
Fixed (B-Y) and (R-Y) Scalars ................................... 56
Y Offset ....................................................................... 57
Matrix Limiters............................................................ 57
Examples of Output Matrix Operation ........................ 57
Simple Luma Color Correction ................................... 58
C
B
C
R
MSB Inversion ................................................. 58
Output Rounding ......................................................... 58
Output Formats............................................................ 58
Decimating C
B
C
R
Data............................................... 58
Multiplexed YC
B
C
R
Output (TRS Words Inserted)... 58
YC Outputs.................................................................. 58
The LDV Clock ........................................................... 58
Sync Pulse Generator ............................................. 59
Internal Field and Line Numbering Scheme ............... 59
Timing Parameters .................................................. 61
Subcarrier Programming ............................................. 61
Horizontal Timing ....................................................... 61
Horizontal and Vertical Timing Parameters................ 61
Vertical Blanking ........................................................ 62
VINDO Operation ....................................................... 65
Video Measurement................................................. 65
Pixel Grab.................................................................... 65
Composite Line Grab .................................................. 67
Parallel Microprocessor Interface ............................... 67
Serial Control Port (R-Bus)......................................... 68
Equivalent Circuits and Threshold Levels ............ 71
Absolute Maximum Ratings.................................... 72
Operating Conditions .............................................. 73
Electrical Characteristics........................................ 75
Switching Characteristics....................................... 76
System Performance Characteristics .................... 76
Programming Examples.......................................... 77
Programming Worksheet ........................................ 81
Related Products ..................................................... 82
Ordering Information ............................................... 84
2
REV. 1.0.0 2/4/03
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
