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Hi,
Has anyone experimented using a serdes to feed directrly video from an Altera Cyclone or Cyclone II device to a DVI monitor? Without an external power hungry serializer chip? I know that the I/O supports a myriad of differential signalling schemes, but not directly DVI signalling. Is there a way to achieve this - lets say not fulfilling the DVI-spec to 100%, but acieving an image on a DVI monitor on lets say max an 1,5m cable? ChristianLink Copied
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What voltage levels does DVI require? If you have a spec that is freely available and not confidential please attach.
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Hi,
The DVI signals are differential current fed signals. The DVI spec can be found at: http://www.ddwg.org/lib/dvi_10.pdf Starting at page 33 you'll find the electrical specification, too long to describe here. The standard states a current fed differential signalling, but using just a short cable and proper resistive loads/impedance matching it might be possible to achieve this even with a voltage output at Cyclone I/II ?? Or are there any other vendors that have FPGA's that can do DVI directly?? Regards, Christian
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