VCT38XXA datasheet(2/172 Pages) MICRONAS

Part #	VCT38XXA

Description	Video/Controller/Teletext IC Family

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Manufacturer	MICRONAS [Micronas]

Direct Link	http://www.micronas.com

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VCT 38xxA

ADVANCE INFORMATION

2

Micronas

Contents

Page

Section

Title

7

1.

Introduction

81.1.

Features

8

1.1.1.

Video Features

8

1.1.2.

Microcontroller Features

8

1.1.3.

OSD Features

8

1.1.4.

Teletext Features

8

1.1.5.

Audio Features

8

1.1.6.

General Features

9

1.2.

Chip Architecture

10

1.3.

System Application

11

2.

Video Processing

11

2.1.

Introduction

11

2.2.

Video Front-end

11

2.2.1.

Input Selector

11

2.2.2.

Clamping

11

2.2.3.

Automatic Gain Control

11

2.2.4.

Analog-to-Digital Converters

12

2.2.5.

Digitally Controlled Clock Oscillator

12

2.2.6.

Analog Video Output

12

2.3.

Adaptive Comb Filter

13

2.4.

Color Decoder

13

2.4.1.

IF-Compensation

14

2.4.2.

Demodulator

14

2.4.3.

Chrominance Filter

14

2.4.4.

Frequency Demodulator

14

2.4.5.

Burst Detection / Saturation Control

14

2.4.6.

Color Killer Operation

15

2.4.7.

Automatic Standard Recognition

15

2.4.8.

PAL Compensation/ 1-H Comb Filter

16

2.4.9.

Luminance Notch Filter

16

2.4.10.

Skew Filtering

16

2.5.

Horizontal Scaler

16

2.6.

Black-line Detector

17

2.7.

Test Pattern Generator

17

2.8.

Video Sync Processing

18

2.9.

Macrovision Detection

18

2.10.

Display Processing

18

2.10.1.

Luma Contrast Adjustment

18

2.10.2.

Black-Level Expander

19

2.10.3.

Dynamic Peaking

21

2.10.4.

Digital Brightness Adjustment

21

2.10.5.

Soft Limiter

21

2.10.6.

Chroma Interpolation

21

2.10.7.

Chroma Transient Improvement

22

2.10.8.

Inverse Matrix

22

2.10.9.

RGB Processing

22

2.10.10.

OSD Color Look-up Table

22

2.10.11.

Picture Frame Generator

23

2.10.12.

Priority Decoder

23

2.10.13.

Scan Velocity Modulation

23

2.10.14.

Display Phase Shifter

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