WIZnet Developer Forum

W7500P termination differential pairs

Hi,

I have a question about the WIZnet W7500P (with build-in PHY).

I looked at the W7500P reference schematic and the Altium files of the WIZwiki W7500P and i noticed that there are no 50 ohm resistors placed in order to terminate the differential pairs. Are those resistors build into the chip?

Thanks!

Hello,

From IP101G datasheet:

Using either 25MHz crystal/oscillator or
50MHz oscillator REF_CLK as clock source

Built-in 49.9ohm resistors for simplifying
BOM
Flexible LED display
Process: 85nm

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