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Description
The WT8870-A is a silicon monolithic circuit designed for synchronous signal processing of multi-sync display monitors. It is capable of coping with many kinds of PC's and workstations, and can be applied to display monitors supporting standard IBM VGA, VESA super VGA and IBM 8514/A video modes. Additionally, it can also be used in other high-end display monitors supporting non-standard video modes with user-defined horizontal/vertical frequency ranges.
Specifications and 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 Scenarios
· Auto size control for Multi-Sync Display Monitors
Comparison
The WT8870-A offers various advanced features such as accepting separate H&V synchronous signals with any polarities, support for multiple video modes including VESA VGA, SVGA, and XGA, as well as non-standard video modes with user-defined frequency ranges. It is capable of processing horizontal frequencies from 25KHz to 80KHz and vertical frequencies from 50Hz to 120Hz. Additionally, it provides standard IBM video mode control outputs and non-standard horizontal frequency control outputs. However, it requires a power supply voltage of 5V.
Advantages- Can cope with many kinds of PC's and workstations - Can be applied to display monitors supporting multiple video modes - Capable of processing a wide range of horizontal and vertical frequencies - Provides various video mode control outputs - Suitable for auto size control in multi-sync display monitors
Disadvantages- Requires a power supply voltage of 5V - Open collector outputs can be combined with pull high resistor, pull up to 12V, which may require additional components for certain applications.
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download WT8870-A
- Chipdatas Part: CD94-WT8870-A
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/05/21 05:54 +0800
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- Full or Partial Refund , If the item is not as described
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