标题: 求RJ45选型手册一份 [打印本页] 作者: dqwuf2008 时间: 2017-8-7 13:48 标题: 求RJ45选型手册一份 最好有能对RJ45相关的一些参数进行说明的，谢谢 ) k f3 A- ?$ Q6 m; J作者: 超級狗 时间: 2017-8-18 17:29
陰特兒（Intel）1000Base-T 設計指導書（Design Guide）：7 \ c+ A8 B# [8 J/ P; @/ p" L+ ?1 t
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Magnetics modules for 1000 BASE-T Ethernet are similar to those designed solely for 10/100 Mbps, except that there are four differential signal pairs instead of two. Use the following guidelines to verify specific electrical parameters:, [/ j; Q& c, B- p- }$ G4 F$ \
Verify that the rated return loss is 19 dB or greater from 2 MHz through 30 MHz for 100BASE-TX.
Verify that the rated return loss is 12 dB or greater at 80 MHz for 100 BASE-TX (the
specification requires greater than or equal to 10 dB). Verify that the rated return loss is 10 dB or greater at 100 MHz for 1000 BASE-TX (the specification requires greater than or equal to 8 dB).
Verify that the insertion loss is less than 1.0 dB at 100 kHz through 80 MHz for 100 BASETX.
Verify that the insertion loss is less than 1.4 dB at 100 kHz through 100 MHz for 1000 BASET.
Verify at least 30 dB of crosstalk isolation between adjacent channels (through 150 MHz).
Verify high voltage isolation to 15000 Vrms
Transmitter OCL should be greater than or equal to 350 μH with 8 mA DC bias. ; B$ i- E' k3 Y, T1 l+ ?2 Q
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