During EMC testing, there was an issue with RE testing, exceeding the 12dB limit in the frequency range of 100K-200K. Currently, it appears that LIN communication line has a high background noise.
Whether we could some TLIN1021A impedance matching circuits for the slave to improve the EMC performance?
normal work
Disconnect LIN harness with the control board, and the master is sending signal
Disconnect LIN harness with the control board, and the master do not send signal