Could AD8141 and AD8145 AHD support for CAT5 twisted-pair cable transmission of HD video?
Yes. These parts can support HD video using Cat-5. If your Cat-5 is very very long (100m to 300m) use an equalizer like the AD8122 or AD8123.
Anna you tell the AD8123 will work with AHD.
But how should I connect the signal? The AHD signal looks like a FBAS just faster. And the AD8123 have RGB inputs.
Even though the AD8122 and AD8123 are intended for RGB video (3 wires), they can use one channel to compensate for losses due to long cable runs.
If you are using CVBS over a single RG-79 co-ax, use one of the 3 channels of the AD8122.Regards,Goz