Hi Federico,

I don't have the final solution to a thread that was closed 3 years ago unfortunately since its not online. 

If the schematics are not identical it would be very helpful to share as small changes can make large impacts on the signal - and also if you could elaborate on what you are trying to achieve - as the schematic in the other post is using an implementation that may not be the best way forward with your application. Also I will say - if it is similar enough to the last application - the issue is not with the part its how you are using it - i.e. the scope shots show the receiver reacting to noise on the bus - which means that the receiver is active during this period and will pick up signals like that as the device has relatively low thresholds. 

Please  let me know.

Best,

Parker Dodson

Hi Parker,

   thanks for you quick reply.

In our case the schematic has a double LCL filter. We tested with and without it but no changes, the 101 sequence on Rout is still present. 

We notice (on the limited numbers we have in R&D) the problem is present with components having a different marking code.

 Componet with problem: HVD72 - 12M - A8VX G4

 Component without problem: HVD72 - 09K - C9J6 G4

We replaced the components and we saw the problem follows the components.

Let me know if these info help you.

Thanks

Federico

Hi Federico,

Can you confirm the OPN (the part number + the extra characters that denote package) such as SN65HVD72D or SN65HVD72DGKR for example - I just want to double check something internally. It does seem like these are possibly counterfeit devices (the date code that is breaking) - but I want to double check to make sure I am not missing something in my internal system.

Please let me know.

Best,

Parker Dodson

Hi Parker,

  sorry for the delay but I was in a business trip. Yes we confirm the part number you see in the pictures.

Regards

Federico