Extremely fine coaxial cable束：Stable transmission of V-by-One HS/US high-speed signals

In high-speed video signal transmission, the V-by-One HS/US interface is widely used in TVs, displays, and automotive camera modules due to its high bandwidth and low EMI advantages. However, even if the interface parameters meet the standards, images may still appear with flickering, snowflakes, or intermittent frame loss. Such problems often originate from the cable itself. The extremely thin coaxial cable (Micro Coaxial Cable) provides reliable guarantees for stable high-speed signal transmission with its unique structure.

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One、Strict requirements of V-by-One HS/US for cables

V-by-One HS/US is a high-speed differential transmission protocol, with signal rates reaching several Gb/s, and it has very high requirements for impedance matching, shielding performance, and signal integrity. Ordinary ribbon cables (such as FFC/FPC) are prone to crosstalk between lines and impedance discontinuity issues, which can lead to signal distortion or increased error rates. Extremely thin coaxial cables use a coaxial structure, with each wire independently shielded, providing a stable channel for each pair of differential signals, fundamentally reducing crosstalk and ensuring the complete transmission of high-speed signals.

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Advantages of ultra-fine coaxial cables in V-by-One HS/US

Impedance control accuracy: Can be strictly controlled within 85Ω±10%, perfectly matching the V-by-One HS/US standard.
• Excellent shielding effect: Each signal line is independently shielded, effectively reducing external interference and ensuring pure signal.
• High flexibility and reliability: Diameter of only 0.3~0.8mm, suitable for compact space wiring, ideal for laptops, tablets, vehicle displays and other equipment.
Excellent high-frequency transmission performance: It can maintain good eye diagrams and low loss under 2~4Gbps, which is the key guarantee for 4K/8K high-definition transmission.

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Chapter 3: Practical Cases and Applications

In display modules, vehicle-mounted image systems, and industrial control display solutions, traditional FFC ribbon cables are being gradually replaced by extremely fine coaxial cable assemblies. Systems using Micro Coax have better signal integrity, significantly lower error rates, and a significantly higher pass rate in EMC testing. For high-speed differential signals like V-by-One HS/US, choosing extremely fine coaxial cable assemblies has almost become an industry standard for stable transmission.

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If the V-by-One HS/US signal is always unstable or subject to frequent interference, the problem is often with "the line." With its ultra-fine coaxial cable bundle, precise impedance control, excellent shielding, high-frequency performance, and flexible wiring, it can fundamentally enhance signal stability, providing reliable and high-speed transmission assurance for TV, display screens, in-car cameras, and industrial control display systems.

I am[Suzhou Huichengyuan Electronic Technology],Long-term focus on the design and customization of high-speed cable harnesses and ultra-fine coaxial cable harnesses, committed to providing customers with stable and reliable high-speed interconnection solutions. For more information or customization, please contactManager Zhang: 18913228573 (WeChat same number)。