Hi,
The MIPI signal will be stuck and then released in ESD contact test(GND, -8KV), this causes the image in infotainment display screen.
Do we have any special protection method for the signal lines? The requirement is ESD meets level A under +/-8kV.
Hello，
We also have an App Note that discusses ESD protection in our Ser/Des devices, so I recommend looking through this document:
https://www.ti.com/lit/an/slvaf60a/slvaf60a.pdf
Besides that, here are some general recommendations to improve ESD performance:
Hardware:
Software:
Also make sure to follow a structured and repeatable test procedure, in order to minimize variables in the ESD test.
For example, the Ferrite Beads in the UB953 datasheet are recommended to be 1.5-kOhms@100MHz, but the Ferrite Beads that were used vary between 331-Ohms@100MHz and 470-Ohms@100MHz.
T
