Datasheet contents information about vertical lock range. It is limited by 70 Hz. But maximum sample rate is 170 MHz. Could ADV7441A support resolutions (from RGB source) up to 1280х1024 @ 85 Hz?
The specification you're looking at "Vertical Lock Range" is related to to "LOCK TIME SPECIFICATION" times
At 85Hz it may take longer then this to lock up.
The Hardware guide Table 11 list settings up to SXGA75. SXGA85 should be within range of the device according to the specifications, VS=85Hz, HS=91kHz, PCLK=157MHz. You will need to set the parameters correctly to do this. Device testing did not take SXGA85 into account so it is not listed in Table 11
Thank you, Guenter.
Your information is very helpful. I'll read Hardware guide more attentively.
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