RS485 IC (MAX22028FAWA)

Hello Vijay, did you ever solve this? I'm having the same issue.

When transmitting data on TX pin,  a loopback copy is received on the RX pin.

Regards,

Eben

Hi Eben

I was unable to fix that issue, and I will modify my code to meet the need.

Thanks & Regards

Vijay

I believe you are using the wrong chip, the 22028 is meant to have the Rx pin follow the Tx pin, if you still want the high speed version but not have the Rx pin follow the differential line then use the MAX22026.  Page 22 of the Rev 8 data sheet has a table that indicates which chips have Rx follow VA-VB when the driver is active.

I believe you are using the wrong chip, the 22028 is meant to have the Rx pin follow the Tx pin, if you still want the high speed version but not have the Rx pin follow the differential line then use the MAX22026.  Page 22 of the Rev 8 data sheet has a table that indicates which chips have Rx follow VA-VB when the driver is active.