Connection to transformer

TCP/IP Chip W5500
1

Dear wiznet

I am about to make a PCB with the w5500, and in the datasheet there is very limited information about the connection to the transformer. I have a setup like the one in the supplied picture, and my question is, what do i put between the w5500 and the transformer?

Would it be fine with 4 50ohm resistors and 2 0.1µF capacitors and then nothing connecteed to the center taps ?

Thanks in advance!

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2

Hi, kresten.

I recommend to make same as our reference schematic.

If you do not, it will not work well.

Best regards.

3

So it is not possible to use a magjack with common center tap ?

4

Hi, kresten

I recommend to make same as our reference schematic.
Because we do not test other schematics.

Best regards.

5

Hi kresten,

I attached a reference schematic using a magjack with common center tap.

Frankly speaking, this is not WIZnet’s official reference schematic yet.
I know that they’re testing it internally.

It will work well though WIZnet couldn’t guarantee it officially yet.

Thank you.

javakys