Balanced equalization: The 10GBASE-KX4 formula for error-free transmission over backplanes

Driving ultra high-speed signals over long traces of FR4 backplanes presents a significant challenge for communications system designers and physical (PHY) transceiver silicon vendors. The 10 Gigabit Attachment Unit Interface (XAUI) signaling standard currently defines a 10 Gbps transmis-sion of up to 20 inches on a FR4 backplane.

The developing IEEE 10GBASE-KX4 standard (IEEE P802.3ap) extends transmission of XAUI-like signals to 40 inches on a FR4 backplane. In this article, Amir recommends a signal equalization architecture for the developing IEEE 10GBASE-KX4 standard.

By Amir Bar-Niv
March 13th, 2005

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Feature / Discussion: 2005-03-13Driving ultra high-speed signals over long traces of FR4 backplanes presents a significant challenge for communications system designers and physical (PHY) transceiver silicon vendors. The 10 Gigabit Attachment Unit Interface (XAUI) signaling standard currently defines a 10 Gbps transmis-sion of up to 20 inches on a FR4 backplane.

The developing IEEE 10GBASE-KX4 standard (IEEE P802.3ap) extends transmission of XAUI-like signals to 40 inches on a FR4 backplane. In this article, Amir recommends a signal equalization architecture for the developing IEEE 10GBASE-KX4 standard.

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