[Weltrend]

Description
The WT8043 is a silicon monolithic circuit designed for synchronous signal processing of multi-sync display monitors capable of coping with many kinds of PC's and workstations. It can be applied to display monitors supporting standard IBM VGA, VESA super VGA and IBM 8514/A video modes. It can also be used in other high-end display monitors supporting non-standard video modes with user-defined horizontal/vertical frequency ranges.

FEATUREs
· Accepting separate H&V Synchronous signals with any polarities
· Support VESA VGA (640x480, 640x400, 640x350), VESA SVGA (800x600), European SVGA (800x600), VESA new SVGA (800x600), XGA (1024x768) and 1280x1024.
· Also including NEC (24K) mode, 3 VESA New 75Hz timing modes and Apple MAC II (35k) mode.
· Capable of processing horizontal frequency from 25KHz to 80KHz
· Capable of processing vertical frequency from 50Hz to 120Hz
· Standard IBM video mode control outputs (1024x768, 640x480, 640x400, 640x350)
· Six non-standard horizontal frequency control outputs with predefined frequency range. (users can define their own horizontal frequency range)
· Fixed polarity horizontal and vertical synchronous signals output
· Power supply voltage: 5V, but mode select control output and frequency discrimination control output, these open collector outputs can be combined with pull high resistor, pull up to 12V.

APPLICATION
· Auto size control for Multi-Sync Display Monitors