PT8501P20 Datasheet

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PTC

Princeton Technology Corp.

Tel : 886-2-29162151

Fax : 886-2-29174598

Synchronous Signal Discriminator

for Multi-Sync Display Monitor

PT 8501

PT 8501 is a frequency discriminator IC utilizing CMOS Technology specially

designed for multi-sync display monitors. It supports a wide variety of display

modes -- from VGA鈥榮 640 x 350 to work station鈥檚 1280 x 1024. By checking the

frequency and/or polarity of the horizontal and/or vertical synchronous signals,

PT 8501 can decide the proper display mode. It then drives the corresponding

output pins from high impedance to low level. PT8501 also sends out negative

polarity horizontal/vertical synchronous signals. PT8501鈥檚 highly comprehensive

features make it very reliable in performance.

Supports VESA VGA (640 x 350 / 640 x 640 / 640 x 480)

Supports IBM VGA (640 x 350 / 640 x 400 / 640 x 480)

Supports IBM 8514/A (Interlace / Non-Interlaced)

Supports VESA Super VGA

Supports VESA New Super VGA

Supports European Super VGA

Supports VESA XGA (1024 x 768)

Supports Work Station (1280 x 1024)

The Open-Drain Output Pin can be pulled up to 14 Volts (with Pull-High

Resistor)

Supports User-Defined Special Display Mode/Frequency Discrimination

Multi-Sync Display Monitor

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