wiki:CommonATCA

Version 3 (modified by hazen, 16 months ago) (diff)

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2018-05-31

Thinking about a common blade for ATLAS L0MDT and CMS IT-DTC.

First, looking at low stack height connectors, but not Z-ray. (See Samtec guide) Samtec families with low stack heights:

Family Series Stack Height Notes
Sea-Ray LPAM/LPAF 4mm
Edge Rate EDM6/EDF6 5mm
Q Series QTH/QSH 5mm? 28 Gbps+, pairs, power
QTE/QSE 5mm 25A GND plane
Ultra-Micro EDM6/EDF6 5mm
LSS/LSEM/LSHM 5mm
ST4/SSR 4mm

Below is a figure with dimensions excerpted from the ATCA standard.

[[Image(http://gauss.bu.edu/svn/atlas-phase-2-muon-upgrade/Meetings/2018-05-31_EDF/figs/stack_heights.png)]] Seems as if we can find a 4mm or 5mm solution.
This gives us about 15.7mm above a mezzanine board for components.