---
title: "W6100S-Q schematic review"
url: "https://maker.wiznet.io/forum/14440"
markdown_url: "https://maker.wiznet.io/forum/14440/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "Arincinstruments"
created: "2022-01-11T15:50:14+09:00"
last_activity: "2022-01-11T15:50:14+09:00"
language: "en"
views: 557
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# W6100S-Q schematic review

## Question

Asked by Arincinstruments on 2022-01-11 in Ethernet Chips.

Please can someone review and suggest any improvements??
I will follow up this post with the final design and or confirmation of if it worked or not.
I am concerned about the crystal oscillator and the transformer selection.

[DSCH-AiRDI-Exxxx - ETH.pdf](https://maker.wiznet.io/forum/legacyFile.asp?path=3wU2j6OIvv2bavWXrzCcTMqI2oF.pdf) (395.3 KB)

[![image](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/5/597d2e04c4a49afb35effd1e41ba908dcbe5e912.png) image1354×676 84.6 KB](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/5/597d2e04c4a49afb35effd1e41ba908dcbe5e912.png)

---

Source: https://maker.wiznet.io/forum/14440