TMC22X5YA datasheet(2/84 Pages) CADEKA

2 / 84 page

TMC22x5yA

PRODUCT SPECIFICATION

REV. 1.0.0 2/4/03

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

CBCR MSB Inversion ................................................. 58

Output Rounding ......................................................... 58

Output Formats............................................................ 58

Decimating CBCR Data............................................... 58

Multiplexed YCBCR 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

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