Hello,
so I brought myself in some bad situation:
The customer wants a solution to convert HDMI from a Camera that only outputs FHD to CVBS/PAL for wireless analog video transmission. Easy enough, shouldn't be a problem. Amazon lists these converters for like 10€. Customer, of course, wants industrial temperature range, somewhat trustworthy components and an isolated CVBS output, in the end it's expensive gear mounted to a drone or crane.
So, the initial solution brings up some HDMI receivers and analog video encoders, but after some more digging of course none of them have a scaler, so no CVBS output from this solution.
So, quick check what's available as a scaler: Nothing, really, at least not in industrial temperature range.
Who would have guessed that interfacing with 57-year-old technology is such a big problem?
The ICs used in the cheap converters are of course some "obscure" Chinese parts. All in all, I found one AverLogic, two Chrontel and one Macro Silicon part that is on the converter I have but is not listed on the manufacturer's website.
So here I am, some weeks to find some solution that is not prohibitively expensive, can input 1080p@60Hz and is industrial rated.
Anyone has any ideas?