I would like to connect a small TFT display that uses LVDS, 4 channels for data and 1 channel for clock. Data rate is maximum 200 Mbps per lane. Very strict EMC requirements are applicable, namely automotive.
What would be the maximum length of a typical LVDS cable that would still work in this environment? Length could be up to 1 meter. I would use twisted pairs in any case. Shielding would preferably be avoided but could be applied if needed. Common mode chokes can be implemented on the PCB; clamps on the cable should be avoided if possible.
I am wondering from what length onwards I should use something like an FPD Link III SerDes (e.g. TI DS90UB927)? Or would that be overkill? BOM cost is important.
Theory like this suggests that I am still well within the regime for LVDS, but it does not quantify the EMC aspects, which are crucial in this application.