Tool/software:
Hi,
I plan to use discrete transformers and common chokes to keep costs down.
I found that the common choke in TI reference designs is on the line side(Link-PP LPJG16314A4NL).
But the common choke is usually on PHY side in many other reference design.
Please give me some advice where should I put the common choke.
Regards,
Wei
Hi Wei,
From a functional standpoint, placement of choke is negligible. However, there are some EMC benefits to having CMC between magnetic and RJ-45. Please see SNLA466 for more information.
Sincerely,
Gerome