In today's high-speed image and display systems, MIPI(Mobile Industry Processor Interface) has become the mainstream data transmission interface, widely used in smart cameras, industrial vision modules, AI equipment and mobile terminals. As the resolution and frame rate continue to increase, the MIPI channel rate continues to rise, and the requirements for the wire structure also increase. Among the many wiring harness solutions, "very fine coaxial harness (Micro-Coaxial Cable)" is becoming the preferred choice for more and more engineers. So, what is its quality when transmitting MIPI high-speed differential signals?

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1. the structural advantages of very thin coaxial harnesses, laying the foundation for high-speed signals

The core advantage of the very thin coaxial harness comes from its "coaxial structure"-the inner conductor, the dielectric layer, the braided shield and the outer sheath are arranged concentrically, so that it has the following characteristics:

1.1, highly consistent impedance control (common 50Ω / 45Ω) to reduce differential signal distortion

1.2, excellent electromagnetic shielding ability, effectively suppress external interference

1.3, extremely low crosstalk to ensure signal integrity when multi-channel MIPI works at the same time

1.4, miniaturization and high flexibility, suitable for high-speed modules in small spaces

These characteristics make it naturally suitable for high-speed transmission structures such as D-PHY and C- PHY.

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How are the key specifications of 2. MIPI high-speed differential signals met?

MIPI communication frequency can reach several Gbps, the signal integrity requirements include:

2.1. Is the differential impedance stable?

MIPI often requires 90 Ω (differential). Due to the stable geometric structure, very fine coaxial can achieve very small deviation, keeping the eye diagram open and reducing error.

2.2, high frequency loss is controllable?

High-quality micro-coax with low dielectric loss and excellent shielding can significantly reduce insertion loss (IL) and return loss (RL), reducing signal reflection.

2.3. What is the performance of multi-channel synchronization?

The low crosstalk advantage of the coaxial structure ensures that there is no coupling interference between multiple pairs of channels and ensures stable transmission of high frame rate image data.

The result is that in high-speed MIPI scenarios of 1.5Gbps, 2.5Gbps, and even 4Gbps, the extremely thin coaxial line can almost maintain extremely high link integrity.

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How does 3. perform in real-world scenarios?

Whether it is an industrial camera, 8K AR/VR display module, or high-resolution mobile phone camera, micro-coax has become the mainstream; typical performance includes:

3.1, high-speed shooting without flower screen, no noise

3.2, long wire still keep the signal stable

3.3, in the vibration, bending environment can still maintain the quality of the eye diagram

3.4, strong anti-EMI ability, suitable for complex industrial field

These results have been largely verified in the actual landing.

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With stable impedance, excellent shielding and extremely low crosstalk, the extremely thin coaxial harness is one of the best wire choices for transmitting MIPI high-speed differential signals. Whether it's high-resolution imagery or high-speed data links, it delivers stable, reliable, and consistent signal quality over time. If you are building a high-speed MIPI system, micro-coax is undoubtedly a safer and more professional solution.

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Thunderspeed extremely fine coaxial wire harness netBelongableSuzhou Huicheng Yuan Electronic Technology Co., Ltd.，We focus onVery fine coaxial wire harnessThe company is deeply engaged in the field of high-speed transmission, with mature manufacturing technology, strict quality management system and rich industry application experience, products are widely used in consumer electronics, industrial control, medical equipment, intelligent security and other fields. We welcome customers in various industries to contact us at any time.