To minimise the overall distance that a signal travels, PCB designers usually place the switching IC (FPGAs or ASICs) in roughly the centre of the board.
Of course, it is also possible to minimise signal losses between the outside I/O and the switch devices by placing them close together, but that only worsens signal integrity from the ASIC or FPGA to the backplane.
To help with signal losses at 56 Gbits/s, many engineers are moving to 4-level pulse-amplitude modulation (PAM4), which doubles the data rate for a given signalling rate versus NRZ. Thus, a 14 GHz clock can deliver 56 Gbits/s using PAM4, but there’s a problem. The signal amplitude (eye height) of a PAM4 signal is one-third that of an NRZ signal. That creates a trade-off between signal loss and sensitivity to noise.
With flyover, high-speed signals are not routed through lossy PCBs, vias, and other components. Rather, they are routed through ultra-low-skew twinax cable assemblies in system. This minimises signal degradation while also eliminating the need for more expensive PCB materials.
mBend cable assemblies Conical Technologies
Interconnection
The mBend cable assemblies from Anoison are designed to meet the growing demand for low-profile coaxial connections in applications where space is limited, and precise bending is necessary right next to the connectors.
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With PTR HARTMANN’s INS265 design kit, DIN rail housings can be individually configured using a wide range of options.
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Samtec’s new coaxial cable achieves excellent performance while subject to dynamic flexing.
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Interconnection
To deliver high-speed performance, many next-generation server applications will use cables inside the box instead of PCB traces to maintain the signal integrity demanded by high-speed communications.
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Data scientists, AI system architects, IC designers, optical engineers, interconnect providers like Samtec, and other solutions providers, are rethinking system topologies.
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Interconnection
Legrand has developed a zinc aluminium finish surface treatment for its Cablofil steel wire cable tray system to minimise the threat of zinc whiskers forming.
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Interconnection
Mill-Max has announced the release of its number 36 contact, a unique contact designed to accept a wide range of lead sizes, while providing low insertion force and high current carrying capacity.
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