Avago Technologies and Xilinx say they have completed interoperability testing between Virtex-6 HXT FPGAs and Avago SFP+ and QSFP+ optical transceiver modules using 10 Gigabit and 40 Gigabit Ethernet ports.
According to Nick Possley, director of wired communications at Xilinx, the GTH transceivers in Virtex-6 HXT devices were designed with these optical interfaces in mind.
“The proof of that effort is evident in our ability to support 10 Gigabit SFP+ Ethernet optical ports up to 300m for 10GBase-SR using modules from Avago.” said Possley.
The key parameter is the jitter performance of the FPGA’s transceivers which is specified at less than 500fs rms random jitter at 11.18Gbit/s.
Link verification has been completed with 10 Gigabit Ethernet SFP+ modules using both short-range and long-range fibre, as well as with 40 Gigabit Ethernet QSFP+ modules using short-range fibre.
Avago is already shipping 40 Gigabit QSFP transceivers.
A test suite to verify compatibility with the IEEE 802.3ae 10GBASE-SRand the SFP+ SFF-8431 MSA specifications has been completed using SFP+ modules with operation verified over full specified link distances of 300m for OM3 multi-mode fibre and 10km for single-mode fibre.
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