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

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

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223 Views
jingfang
Contributor III

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?

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1 Solution
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guoweisun
NXP TechSupport
NXP TechSupport

It will affect on the EMI/C performance.

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5 Replies
219 Views
jingfang
Contributor III

if no filter on lin pin?

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jingfang
Contributor III

Thanks a lot~

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

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216 Views
guoweisun
NXP TechSupport
NXP TechSupport

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

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212 Views
jingfang
Contributor III

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?

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221 Views
guoweisun
NXP TechSupport
NXP TechSupport

It will affect on the EMI/C performance.

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