OUTLINE OF PRODUCT
The KS5520 is a single chip VLSI device which performs the on screen display function with sync seperation of video composite signal and AFC is proposed. It can choose total 256 characters and display up to 360 characters in a screen.
It can also select various built-in functions such as character color select, inverse, etc. These functions are compatible with all video systems including NTSC, PAL, SECAM.

FUNCTIONS
• On screen display
• Sync separator and sync detector
• AFC

FEATURES
• Screen structure : 360 ( 30 columns x 12 rows)
• Character structure : 12 x 18 dots
• Character types : 256 kinds of color characters
• Display position : 62 horizontal position
   64 vertical position
• Character size : 4 x 4 times of normal in both vertical and horizontal directions
• Blinking : controllable in character unit, blinking time also controllable
• Blanking : controllable in line units, blanking mode change possible
                   Blank color fill possible in character units (8 colors)
• Background coloring : 8 colors
• Character coloring : coloring of characters possible in blank mode
• Inverse character display : controllable in character units
• Synchronous ways : automatic selection of internal or external synchronization via MICOM control
• Built-in clamp, horizontal/vertical sync separator & sync detector circuit
• Sync detection sensitivity can be adjusted via MICOM control.
• Built-in analog horizontal/vertical sync PLL circuit
• Scroll & Box Drawing ability
• Half-Tone function ability
• NTSC / PAL / SECAM mode via MICOM control