參數(shù)資料
型號： TDA938X
廠商： NXP Semiconductors N.V.
英文描述： TV signal processor-Teletext decoder with embedded m-Controller
中文描述： 電視信號處理器與嵌入式米圖文電視解碼器控制器
文件頁數(shù)： 57/140頁
文件大?。?/td> 570K
代理商： TDA938X
Philips Semiconductors
Preliminary specification
1999 Sep 28
57
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA 935X/6X/8X series
Display
The display section is based on the requirements for a Level 1.5 WST Teletext and US Closed Caption. There
are some enhancements for use with locally generated On-Screen Displays.
The display section reads the contents of the Display memory and interprets the control/character codes. From
this information and other global settings, the display produces the required RGB signals and Video/Data (Fast
Blanking) signal.
Display Features
Teletext and Enhanced OSD modes
Level 1.5 WST features
US Closed Caption Features
Serial and Parallel Display Attributes
Single/Double/Quadruple Width and Height for characters
Scrolling of display region
Variable flash rate controlled by software
Globally selectable scan lines per row 9/10/13/16
Globally selectable character matrix (HxV) 12x9, 12x10, 12x13, 12x16
Italics
Soft Colours using CLUT with 4096 colour palette
Underline
Overline
Fringing (Shadow) selectable from N-S-E-W direction
Fringe colour selectable
Meshing of defined area
Contrast reduction of defined area
Cursor
Special Graphics characters with two planes, allowing four colours per character
32 Software re-definable On-Screen Display characters
4 WST Character sets(G0/G2) in single device (e.g. Latin,Cyrillic,Greek,Arabic)
G1 Mosaic graphics, Limited G3 Line drawing characters
WST Character sets and Closed Caption Character set in single device
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