High speed SerDes cabling handles 28G at 3.5W

High speed SerDes cabling handles 28G at 3.5W

New Products |
By Nick Flaherty

The Flyover QSFP28 (FQSFP) can support high speed 28G NRZ/56G PAM 4 data rates per channel and provides system design flexibility with  sideband signaling via press-fit contacts to improve airflow, reduce loss, and mitigate skew. The system provides aggregate data rates of 100Gbps NRZ/200 Gbps PAM4, and is compatible with all MSA QSFP pluggables. A variety of heat sink options are available and allow a heat dissipation of approximately 3.5W per cable.

“Using the FQSFP series allows for a much longer electrical trace and convenient selection for the endpoint of the SerDes termination,” said Aaron Ram, Applications Engineer at Samtec. “The process of routing through the FQFSP series allows designers to locate the QSFP interface much further from the ASIC or processor than traditional PCB routing would allow. This also removes the need for expensive retimers or power hungry drivers and receivers.”

The cable system consists of the FQSFP assembly that uses 30 & 34 AWG 100Ω low skew twinax cable, the Quad Small Form-factor Pluggable (QSFPC) cage, HS-QSFP heat sink, and LP-FQSFP light pipe. The FQSFP offers multiple options including DCH, ECUE, and ARC6 cable assemblies. Samtec also offers an FQSFP SI Characterization Kit for evaluation and development.

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