Introducing the innovative Si-Fly cable assembly from Samtec, designed to allow you to mount connectors to a board while easily navigating around cooling components.
When dealing with high-speed digital ICs like microprocessors and GPUs, it is crucial to ensure clean signals while managing excess heat generation. To achieve this, engineers often need to position cables in close proximity to the ICs. However, the presence of larger heatsinks can sometimes cause signal-integrity issues by pushing the cable away from the semiconductor package. This is where Samtec’s Si-Fly cable assemblies come into play, offering connectors that can fit under an IC package, allowing for versatile mounting options.
The Si-Fly cable assembly comprises a board-mounted connector and a connector on the cable. When mated, these connectors require 4.35 mm of clearance but need 8.44 mm clearance for mating.
Featuring a two-row, 16-pair design, the Si-Fly utilizes 34 AWG twinax cable wire with 92 Ω or 100 Ω impedance, capable of handling data rates up to 112 Gb/sec for signals utilizing PAM4 modulation. In the 16-pin configuration, the Si-Fly can support 896 Gb/sec (×8, bidirectional) or 1.79 Tb/sec (×16, unidirectional) signals, making it compatible with PCIe 6.0/CXL 3.2 standards. The operating temperature ranges from -25°C to 85°C, ensuring reliability in various environments.
