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sinara-hw / IDC_MCX_Adapter

32-channel IDC to MCX adapter. It can also work as a Fastino/Zotino mezzanine, without IDC cables.
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IDC-MCX #1

Open jordens opened 2 years ago

jordens commented 2 years ago

This is a proposal for a very simple new break-out board: analog 2xIDC to 16xMCX. Electrically similar to IDC-BNC but mechanics similar to DIO-MCX. For Fastino and Zotino to enable higher density setups. Whether the resulting cable density is desirable is another question.

gkasprow commented 2 years ago

yes, connecting all 32 channels of Zotino to BNCs consumes a lot of panel space.

gkasprow commented 2 years ago

the easiest way would be to use a single PCB and vertical MCX connector. But the EMC lips and RC filters won't be possible here obraz Another approach is dual-level PCB like in DIO-MCX, slightly more expensive but without compromises

jordens commented 2 years ago

Cool idea. I don't think we really need the CMC and RC filters on there. But the EMC lip would be desirable. If you do a single 8 HP (or 12 HP) panel for 32 channels, can it be made to work with a single PCB?

gkasprow commented 2 years ago

32 channels should fit on 8HP with EMC lip, but it could be difficult to unplug some connectors selectively using standard fingers :)

gkasprow commented 2 years ago

that could work obraz obraz

pathfinder49 commented 2 years ago

A thought: All current Kasli releases genereates common mode SMPS noise (https://github.com/sinara-hw/Kasli/issues/66). Adding the optional CMCs would allow the MCX signals to get "best noise performance" from Fastino, which may be useful to some.

gkasprow commented 2 years ago

to include the CMCs we would need to go for 12HP or dual PCB approach

gkasprow commented 2 years ago

on the other side, what is the benefit of having a 12HP solution since 4x SMA gives 16HP...

gkasprow commented 2 years ago

we can also think of an 8HP mezzanine sitting on top of Zotin/Fastino which could work without IDC cables at all.

jordens commented 2 years ago

Let's leave the CMCs out. We removed them from fastino and from the other IDC boards already. If you can make it work without the IDC cables, even better. I lack the Imagination what that would look like with a single PCB. ;)

gkasprow commented 2 years ago

well, I didn't say it would be a single PCB :)

gkasprow commented 2 years ago

This is the idea of the Zotino/Fastino mezzanine obraz

One can also solder in the IDC connectors and CMC filters and use it stand-alone obraz

panel obraz

kaolpr commented 1 year ago

We've discussed the idea internally in TechnoSystem and we'd like to suggest coming back to @jordens idea of 16ch configuration that would be similar to DIO MCX. The reason is ease of manual assembly and production proven idea.

Of course, one won't be able to assemble it directly on the Fastino / Zotino. Do you find it a significant loss?

@jordens @pathfinder49 Would it be an acceptable option for you?

jordens commented 1 year ago

Depends on the mechanics, price, number of PCBs, way of connection, whether the RF shield lip is ok, separate panel or not, etc. What do you have in mind?

pathfinder49 commented 1 year ago

No problem from my side, this does not have to be "all things to all people"

gkasprow commented 1 year ago

I already designed the rigid-flex version but AFAIR the NRE costs were too high. But, maybe they are acceptable in the end?

gkasprow commented 1 year ago

obraz obraz obraz