LVDS automotive cable features:

1. High-speed transmission capability. According to THE LVDS standard in ANS/EIA/EIA-64 definition, the theoretical limit rate is 1.923Gbps, and the working mode of constant current source mode and low swing output determines the high speed driving capability of LVDS automobile cable.
2. Low power consumption. LVDS devices are implemented using CMOS technology, which provides low static power consumption. When the driving current of the constant current source is 3.5mA, the power consumption of the load (100 ω terminal matching) is only 1.225mW. The power consumption of LVDS is constant, unlike the dynamic power consumption of CMOS transceivers, which rises relative to frequency. The constant current source mode drive design reduces the power consumption of the system, and greatly reduces the influence of frequency components on power consumption. Although CMOS power consumption is lower than LVDS at lower rates, as the frequency increases, CMOS power consumption will gradually increase, requiring more power than LVDS car cables. In general, LVDS and CMOS have roughly the same power consumption at frequencies equal to 200MSps.
3. Power supply voltage is low. With the development of integrated circuits and the demand for higher data rates, low voltage power supply becomes an urgent need. Reducing the supply voltage not only reduces the power consumption of the high-density IC, but also reduces the heat dissipation pressure inside the chip, which helps to improve the integration degree. LVDS automotive cable drivers and receivers do not depend on specific supply voltage characteristics, which determines it to dominate this aspect.
4, strong anti-noise ability. The inherent advantage of differential signal is that noise is coupled in a pair of differential lines in the way of common mode, and subtracted in the receiver, so that noise can be eliminated, so LVDS automobile cable has a strong ability to resist common mode noise.
5, effectively suppress electromagnetic interference. Because the polarity of differential signals is opposite, the electromagnetic field radiated by them can cancel each other. The closer the coupling is, the less electromagnetic energy is released to the outside world, which reduces EMI.
6. Accurate timing positioning. Because the switching change of differential signal is located at the intersection of two signals. Unlike the common single-terminal signal which depends on the high and low threshold voltage judgment, so it is less affected by the process and temperature, can reduce the timing error, is conducive to the effective transmission of high-speed digital signal.
The content introduced above is the characteristic of LVDS automobile cable. It is because LVDS automobile cable has the above characteristics that LVDS cable has attracted more and more attention. It is believed that in the near future, it will be more and more widely used in the field of high-speed data transmission.

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