What happens if I change the capacitance value of the TJA1021 Lin pin?

[jingfang]

Recommended value:

master : C = 1nF;

Slave : C = 220pF

if I change the capacitance value to :

master : C = 220pF;

Slave : C = 1nF

What effect would that have?

[jingfang]

if no filter on lin pin?

[jingfang]

Thanks a lot~

What if I change it to any other value? Whether is also affect EMI?

[guoweisun]

Yes,the value of Cmast and C slave are calculated to define,so please don't suggest to change it!

[jingfang]

The customer wants to replace friend business with NXP.

master：C = 220pF

They don't want to change the peripheral loop ,they want to replace it directly.

Does the number of slave nodes matter if the master C is reduced?

[guoweisun · Accepted solution]

It will affect on the EMI/C performance.