In high-speed digital systems, signal integrity and transmission efficiency directly affect overall performance. With the continuous miniaturization of devices and the ever-increasing data rates, traditional PCB routing is gradually unable to meet the transmission requirements of high-speed differential signals. Twinax cable (dual-axis cable) with its excellent anti-interference performance and low loss characteristics has become one of the important choices in the field of modern high-speed interconnects.
Twinax cable has the following structural characteristics:
Twinax cable is a type of cable that internally contains two central conductors, mainly used for differential signal transmission. These two conductors are separated by insulating materials such as rubber or plastic, and they are both encapsulated within an insulating dielectric layer, with a structure similar to that of a microcoaxial cable. On the outside of the cable, there is a metallic shielding layer, which serves as a ground current loop and can effectively reduce external electromagnetic interference (EMI). The outermost layer is usually a sheath made of materials such as PVC, which serves to protect and enhance the mechanical strength.
Part two: Performance and Application Advantages
Twinax cables are particularly suitable for high-speed digital data transmission environments, capable of supporting low-voltage drive, low skew, and strict phase matching of differential signals. Compared with traditional PCB routing, Twinax cables have lower heat generation and smaller signal loss during transmission, significantly improving the signal integrity and transmission stability of the system. Therefore, they are often used for high-speed interconnections between board modules and devices, such as servers, storage devices, and high-speed communication modules.
Three, specifications and matching selection
To meet the requirements of different systems for signal integrity, Twinax cables offer a variety of options in terms of dimensions, impedance, and structural specifications. In common applications, Twinax cables are usually paired with high-performance miniature connectors such as I-PEX to ensure stable transmission of high-speed differential signals. Through precise electrical matching and high-quality shielding structures, Twinax solutions can achieve high bandwidth and low crosstalk transmission performance in compact spaces.
Twinax cables have become an ideal choice for high-speed interconnection within modern electronic devices due to their excellent anti-interference performance, high-speed transmission capabilities, and flexible installation features. Whether in servers, AI computing platforms, or communication and industrial automation equipment, Twinax plays a critical role in high-speed data links.
I amSuzhou Huichengyuan Electronic Technology Co., Ltd.,Long-term focus on the design and customization of high-speed signal cable harnesses and ultra-fine coaxial cable harnesses, committed to providing stable and reliable high-speed interconnection solutions. If you have related needs or want to learn more, please contact:Manager Yin 18913280527 (WeChat same number)。
