TJA1042T/3_CAN network Port resistance Issue_FC

[Fidel]

Dear ,

       I  am doing the CAN Network Port Resistance test and found it did not meet the test standard, show as below

and the test circuit and method are as below

anyone can tell me why it is like this? and how to make it to meet the test standard? thanks a lot~

[guoweisun]

麻烦我想知道您测试的这个参数是不是对应datasheet下面的?

[Fidel]

不是的，是甲方客户的测试标准，不过应该也是通用的测试标准。

[guoweisun]

他是想测试哪个参数？

[Fidel]

这些参数Rin_CAN_H/L 和Rin_diff,具体计算方法也应该就是最开始贴的那张图里的