## Outline * ![all](https://hackmd.io/_uploads/H1fJ2UEsR.png) ## Changed of sub-board * ![amp-dac](https://hackmd.io/_uploads/H1Ee3L4oC.png) * Photodiode: [FR00AVAR](https://fiberfin.com/custom/upload/File-1535472897.pdf) * Verticla version * [USB-3.0-A](https://en.wikipedia.org/wiki/USB_3.0#Connectors) * Reasons: Lots of port removed in ver.2 * GPIO(\*4), reverse-bias(\*1) ## Main Board * PWR * 12V -> 5VA * [MDS02M-05N](https://www.mouser.tw/ProductDetail/MEAN-WELL/MDS02M-05N?qs=ZcfC38r4PovzvUfVLFtf4g%3D%3D) * [MDS01M-05N](https://www.mouser.tw/ProductDetail/MEAN-WELL/MDS01M-05N?qs=ZcfC38r4Potp5oBopGq3ww%3D%3D) * 12V -> 5VD * [MDS20A-05](https://www.mouser.tw/ProductDetail/MEAN-WELL/MDS20A-05?qs=OlC7AqGiEDmNZVeaqbgsyg%3D%3D) ## Long trace of SPI [TIDA-060017: Transmitting SPI Signals Over LVDS Interface Reference Design](https://www.ti.com/lit/ug/tidued8/tidued8.pdf?ts=1724309604926)