TMS320F28388D: is there any example and application notes for isolation by cap for Etharcat?

longfei zhang

Intellectual 410 points

Part Number: TMS320F28388D

over 5 years ago

0 longfei zhang over 5 years ago

Intellectual 410 points

0 longfei zhang over 5 years ago in reply to longfei zhang

Intellectual 410 points

PHY is DP83822HRHBT, we want to use cap isolation instead of transfromer for EtherCAT,is there any examples and applition notes?

0 KARTHIKEYAN RAJAMANICKAM over 5 years ago in reply to longfei zhang

TI__Genius 11645 points

Hi,

One of our experts will get back to you on this (mostly by Tuesday central time).

0 Cody Watkins over 5 years ago

TI__Mastermind 42195 points

Longfei,

Here is a post which discusses that it is OK to use a transformerless configuration with DP83822.

https://e2e.ti.com/support/interface/f/138/t/688552

It also links to another thread that gives some good info on following this appnote with DP83822, which requires capacitance value changes. http://www.ti.com/lit/an/snla088a/snla088a.pdf

Unfortunately, I am not an expert on the PHY to RJ45 interface so if you have more questions we can transfer your thread over to the interface forum.

Let me know so we can get you the support you need!

Regards,
Cody

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28388D: is there any example and application notes for isolation by cap for Etharcat?