In the PCB board design process, we need to consider the signal integrity issues, such as the width, length, line spacing and the size of the vias to meet the system design requirements. However, for signal connector ultra-high-speed signals, such as 28Gbps or higher (56Gbps, 112Gbps), the traditional PCB internal routing is stretched. Ultra-high-speed signals are more sensitive to interference sources, thus causing serious signal attenuation problems. This is a problem that every system design engineer is not willing to encounter when designing a high-speed serial interface, but it must be solved.
From the above figure, we can see that for PCB signal traces, the least attenuation is the case of PTFE (polytetrafluoroethylene) composites (dark blue lines), mainly for microwave and radio frequency (RF) signal applications. . The top two lines indicate the lowest signal attenuation. The Samtec FireFly connector is used to solve the problem of ultra-high-speed data signal transmission in such systems. The FiberFly connector with fiber optic material can achieve almost zero attenuation.
If you want to experience the ultra-high performance of Samtec FireFly, you can choose Xilinx VCU118 Viretx UltraScale+ FPGA development kit and Samtec FMC+ Active Loopback board, insert the FMC+ Loopback board into the FMC interface of the Xilinx VCU118 board, and then download the test on the official website. The program is fine. The copper connection cable of the Samtec Flyover QSFP28 interface is supported here. Of course, the user can select the fiber material connection cable according to the needs in the actual design, and the effect is better.
The Samtec FireFly series of connectors is the industry's first ultra-high-speed signal transmission solution, which gives system developers greater flexibility. This solution breaks the traditional way of high-speed signal PCB routing, in exchange for not only It reduces the attenuation of high-speed signals, and also reduces the complexity and cost of PCB layout and wiring, and improves the performance of the system.http://www.fdragtech.com/