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# System prepended metadata

title: IR_sensor_EV2_LAYOUT NOTE

---

# IR_sensor_EV2_LAYOUT NOTE

~~- [ ] ### 確認下hdmi 部分RC 的封裝~~

- [ ] ### HDMI 線路的VCCO_1V8 與VCCO_3V3 

- [ ] ### HDMI & Jfpga 連線要對應上
- [ ] ### 確認模組裝的方向和位置
- [ ] HDMI U12 的pin 17要10K pull up 電阻接VDD_3.3V
- [ ] HDMI U12的 pin 17 要接到主板Up1的 pin 3
- [ ] Jfpga的pin symbel 7155_SCL改為7511_SCL
- [ ] HDMI的GND與主板EARTH相連
- [ ] HDMI 的 pin 16 與DC_12V相連
- [ ] HDMI ADV7511的pin 50 接12MHz OSC 
- [ ] 最小線寬可以為6mil
- [ ] 是否可以將FPGA board與CLCC為第一層, Main system board 為第二層, MCU board為第三層??如此電路板尺寸可縮小為21cm x 9cm???
![](https://i.imgur.com/7Qm6Bff.jpg)

- [ ] hdmi部分rc 封裝用0402, 電源IC的0603
- [ ] HDMI, USB走線要阻抗匹配, clock and data 最好等長, 差動線要一樣長, 可參考網址:
- [ ] https://ez.analog.com/video/w/documents/687/hdmi-layout-guideline
- [ ] https://kknews.cc/zh-tw/design/lkr4z.html




![](https://i.imgur.com/9md4pM2.png)

![](https://i.imgur.com/ulaj6pr.png)


![](https://i.imgur.com/xdk855M.png)

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========use only shihchaopin

![](https://i.imgur.com/rHv1w9d.png)

