【 干货分享】车载Ethernet 100Base-T1的降噪措施方法
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反相(差模)信号,磁场消除 → 穿透
- 同相(共模)的噪声,磁场重叠 → 反射
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- 车载Ethernet使用容易放出噪声的非屏蔽电缆,而且需要支持车载噪声标准,因此必须采取降噪措施。
- 使用支持100base-T1的共模扼流圈‘DLW43MH201XK2’,辐射噪声便能符合CISPR25 Class5。
- 对传导噪声和DPI发挥出比CAN、FlexRay用CMC更高的降噪效果。
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