VCT 38xxA
ADVANCE INFORMATION
Contents
Page
Section
Title
7
1.
Introduction
8
8
8
8
8
8
8
1.1.
Features
1.1.1.
1.1.2.
1.1.3.
1.1.4.
1.1.5.
1.1.6.
Video Features
Microcontroller Features
OSD Features
Teletext Features
Audio Features
General Features
9
1.2.
1.3.
Chip Architecture
10
System Application
11
2.
Video Processing
11
2.1.
Introduction
11
11
11
11
11
12
12
2.2.
Video Front-end
2.2.1.
2.2.2.
2.2.3.
2.2.4.
2.2.5.
2.2.6.
Input Selector
Clamping
Automatic Gain Control
Analog-to-Digital Converters
Digitally Controlled Clock Oscillator
Analog Video Output
12
2.3.
Adaptive Comb Filter
13
13
14
14
14
14
14
15
15
16
16
2.4.
Color Decoder
2.4.1.
2.4.2.
2.4.3.
2.4.4.
2.4.5.
2.4.6.
2.4.7.
2.4.8.
2.4.9.
2.4.10.
IF-Compensation
Demodulator
Chrominance Filter
Frequency Demodulator
Burst Detection / Saturation Control
Color Killer Operation
Automatic Standard Recognition
PAL Compensation/1-H Comb Filter
Luminance Notch Filter
Skew Filtering
16
16
17
17
18
2.5.
2.6.
2.7.
2.8.
2.9.
Horizontal Scaler
Black-line Detector
Test Pattern Generator
Video Sync Processing
Macrovision Detection
18
18
18
19
21
21
21
21
22
22
22
22
23
23
23
2.10.
Display Processing
Luma Contrast Adjustment
Black-Level Expander
Dynamic Peaking
Digital Brightness Adjustment
Soft Limiter
Chroma Interpolation
Chroma Transient Improvement
Inverse Matrix
2.10.1.
2.10.2.
2.10.3.
2.10.4.
2.10.5.
2.10.6.
2.10.7.
2.10.8.
2.10.9.
2.10.10.
2.10.11.
2.10.12.
2.10.13.
2.10.14.
RGB Processing
OSD Color Look-up Table
Picture Frame Generator
Priority Decoder
Scan Velocity Modulation
Display Phase Shifter
2
Micronas