Can you explain the technical difference betwen CAC-2330 and CAC-1330 HDMI->DP adapters? I am looking at my local dustin dealer, but they don’t seem to carry either of them, so I would like to know the difference before I place any mail order.
CAC-2330 vs CAC-1330
Updated on 17-04-2018 in
Adapters and Cables
I’ve got some extended question to these adapters.
First, I’d wish you used the power from supplied from the displayport side (3.3v 500mA) instead of the awkward extra USB wire. Also I wish they were designed to plug near the DP end, not the HDMI end. Are there any technical reasons for the way it is done?
2nd, will this work between non HDCP compliant devices? I find other brands are not able to do that, because it appeas as if the adapter presents itself as HDCP compatible without even asking the monitor, ending up with no image, even if the source allows non HDCP output. AppleTV is a great source for testing this, as it will send image and allow some apps on non HDCP compliant sinks, and put an error message up on the screen if it needs to. A bad adapter will prevent this.
3rd and last, can the firmware be upgraded from either end? Finding a repeatable device seems to be hard, and it would be nice if they can be upgraded to behave the same way.
Not sure i understand the first part / question :-S
The adapter cannot take power from DP Display output to feed the adapter chips on other end of that signal line.
This adapter should not play a part in determining if a signal with or without HDCP will be shown. It has a reapeater for HDCP 1.4, so if an HDCP signal is send to the adapter it will just forward it.
Normally active adapters like this can only be updated from source side, so in this case the HDMI side. I will double chekc on this one, but cannot imagine you can update it from the “transmitter-side”.
To clearify the first part. All DP ports supply power, both the receiving end and the transmitting end. This allows for much practical active adapters than on HDMI where only the transmitter can supply power. This is why it makes more sense to put this type of adapter at the receiving end, where you have approx 1.5W of power available on a short wire, vs HDMI output where you can harvest approx 250mW. This is also why there is a need for additional power at higher pixelrates. I know Lindy has an adapter probably based on the same STDP2600 chip but stuck to the receiving end. I know their adapter (the one I got, with no information about FW) can not manage non HDCP properly, so I was hoping for something that could. Also I have tested a lot of different brands, but they all suffer from weird bugs, and no version traceability. I have not tested the CAC-x330 yet. They are hard to find in stock!
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Hello, I am looking for an adapter to use it for hdmi2.0 to DP 1.2 on a solution 1440p (2560×1440)@144hz(120hz would also be ok) is this possible with the CAC-2330?
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