i want to send one Video Signal to 2 Monitors via DVI Transmitter AD7511. Can the DVI signals simply be splitted or
are 2 DVI Transmitters neccessary?
DVI uses differential signalling so you will need two transmitters.
Probably the bigger issue here is if the video will ever be HDCP encrypted. If that is the case, you will need to have 2 transmitters. If not, then you might be able to send it to 2 receivers. In general this is not a viable solution because the Tx is 10mA differential current sink and expects the link to be . terminated in 50 ohms to 3.3V. This then allows the proper signal (nominally 900mV p-p diff) to be present at the Rx. Although the Rx is designed to accomodate as little as 150mV swing, this is only tested in HDMI Rx, and not in DVI specific receivers. Again, this may work, and if the frequency and line length is not pushing the limits, it may even work OK - but not a recommended application.
HDCP requires a single source (Tx) to interface with a single sink (Rx), so if the data is encrypted, 2 Tx each with unique HDCP keys would be required.
thanks for the answers. Another question: Can a standard TFT Monitor with HDCP support display video data from a DVI Transmitter
which don't uses HDCP ?
Yes: an HDMI or DVI sink that supports HDCP will receive properly unencrypted content (from DVI/HDMI source w/o HDCP).
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