The WT8045 is a silicon monolithic circuit designed for synchronous signal processing and power saving detection of multi-sync display monitors, which can cope 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. The WT8045 incorporates many functional circuits, including horizontal/vertical frequency discrimination, display mode selection, and synchronous pulse polarity and power saving detection, into this single chip IC. WT8045 is more convenient for you to shrink the PC board size and to reduce the material and labor cost with fewer components.
The WT8045 is designed for use with standard IBM VGA, VESA Super VGA, and IBM 8514/A video modes, as well as non-standard high-end monitor modes. It integrates horizontal/vertical frequency discrimination, display mode selection, synchronous pulse polarity detection, and power saving detection into a single chip to reduce board size and component costs.
The device accepts two separated H&V synchronous signals with positive or negative polarity and supports various resolutions including VESA VGA (640x480), SVGA (800x600), XGA (1024x768), and 1280x1024. It processes horizontal frequencies between 25kHz to 80kHz and provides fixed polarity outputs for both signals.
| Supply Voltage (Digital) | DC 5 volts |
|---|---|
| Horizontal Frequency Range | 25kHz to 80kHz |
| Power Dissipation | 300 mW |
| Crystal Clock Frequency | 3.5764 MHz to 3.5836 MHz |
| Supply Current (Standby) | 13 mA |
It supports standard IBM VGA, VESA Super VGA, and IBM 8514/A video modes.
Yes, it detects conditions such as ON/STANDBY/SUSPEND/OFF mode.
The device is capable of processing horizontal frequencies up to 80kHz.