Video/Controller/Teletext IC. VCT3804A Datasheet

VCT3804A IC. Datasheet pdf. Equivalent

VCT3804A Datasheet
Recommendation VCT3804A Datasheet
Part VCT3804A
Description Video/Controller/Teletext IC
Feature VCT3804A; MICRONAS PRELIMINARY DATA SHEET VCT 38xxA/B Video/Controller/Teletext IC Family Edition Jan. 8, 20.
Manufacture Micronas
Datasheet
Download VCT3804A Datasheet





Micronas VCT3804A
MICRONAS
PRELIMINARY DATA SHEET
VCT 38xxA/B
Video/Controller/Teletext
IC Family
Edition Jan. 8, 2002
6251-518-1PD
MICRONAS



Micronas VCT3804A
VCT 38xxA/B
Contents
Page
Section
7 1.
8 1.1.
8 1.1.1.
8 1.1.2.
8 1.1.3.
8 1.1.4.
8 1.1.5.
8 1.1.6.
9 1.2.
10 1.3.
Title
Introduction
Features
Video Features
Microcontroller Features
OSD Features
Teletext Features
Audio Features
General Features
Chip Architecture
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.
Burst Detection / Saturation Control
14
2.4.5.
Color Killer Operation
15
2.4.6.
Automatic Standard Recognition
15
2.4.7.
PAL Compensation/1-H Comb Filter
16
2.4.8.
Luminance Notch Filter
16
2.4.9.
Skew Filtering
16 2.5. Horizontal Scaler
17 2.6. Black-line Detector
17 2.7. Test Pattern Generator
17 2.8. Video Sync Processing
18 2.9. Display Processing
18
2.9.1.
Luma Contrast Adjustment
18
2.9.2.
Black-Level Expander
19
2.9.3.
Dynamic Peaking
20
2.9.4.
Digital Brightness Adjustment
20
2.9.5.
Soft Limiter
20
2.9.6.
Chroma Interpolation
20
2.9.7.
Chroma Transient Improvement
21
2.9.8.
Inverse Matrix
21
2.9.9.
RGB Processing
21
2.9.10.
OSD Color Look-up Table
21
2.9.11.
Picture Frame Generator
22
2.9.12.
Priority Decoder
22
2.9.13.
Scan Velocity Modulation
22
2.9.14.
Display Phase Shifter
24
2.10.
Video Back-end
24
2.10.1.
CRT Measurement and Control
25
2.10.2.
SCART Output Signal
26
2.10.3.
Average Beam Current Limiter
26
2.10.4.
Analog RGB Insertion
26
2.10.5.
Fast-Blank Monitor
2
PRELIMINARY DATA SHEET
Micronas



Micronas VCT3804A
PRELIMINARY DATA SHEET
Contents, continued
Page
Section Title
28
2.11.
Synchronization and Deflection
28
2.11.1.
Deflection Processing
28
2.11.2.
Angle and Bow Correction
28
2.11.3.
Horizontal Phase Adjustment
29
2.11.4.
Vertical and East/West Deflection
29
2.11.5.
EHT Compensation
30
2.11.6.
Protection Circuitry
30
2.12.
Reset Function
30
2.13.
Standby and Power-On
31
2.14.
I2C Bus Slave Interface
31
2.14.1.
Control and Status Registers
44
2.14.1.1.
Scaler Adjustment
46
2.14.1.2.
Calculation of Vertical and East-West Deflection Coefficients
48 3.
Text and OSD Processing
48 3.1. Introduction
48 3.2. SRAM Interface
48 3.3. Text Controller
50 3.4. Teletext Acquisition
50 3.5. Teletext Page Management
50
3.5.1.
Memory Manager
51
3.5.2.
Memory Organization
51
3.5.3.
Page Table
53
3.5.4.
Ghost Row Organization
54
3.5.5.
Subpage Manager
55 3.6. WST Display Controller
56 3.7. Display Memory
58 3.8. Character Generator
59
3.8.1.
Character Code Mapping
60
3.8.2.
Character Font ROM
61
3.8.3.
Latin Font Mapping
62
3.8.4.
Cyrillic Font Mapping
63
3.8.5.
Arabic Font Mapping
64
3.8.6.
Closed Caption Font (on VCT 38xxB only!)
65
3.8.7.
Character Font Structure
66 3.9. National Character Mapping
68
3.10.
Four-Color Mode
69
3.11.
OSD Layer
70
3.12.
Command Language
78
3.13.
I/O Register
85
3.14.
I2C-Bus Slave Interface
85
3.14.1.
Subaddressing
86
3.14.1.1.
CPU Subaddressing
86
3.14.1.2.
DRAM Subaddressing
86
3.14.1.3.
Command Subaddressing
87
3.14.1.4.
Data Subaddressing
87
3.14.1.5.
Hardware Identification
VCT 38xxA/B
Micronas
3





@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)