FAQ
您好:
因项目上存在强电,工厂烧录生产时需要隔离器件进行隔离(速率1Mhz以下)。产品是自己供电,烧录器Jlink也是自己供电。
我的方案是:ADuM1250的SDA作为JLINK SWDIO, ADuM1200的作为RESET 控制被烧录产品RESET
问题1:SWCLK是使用ADuM1250的Clk好一些还是用ADuM1200的PIN,因为1200是支持1-10Mhz的,1250最大也就1M。但是两个分开,又害怕GND有影响
问题2:烧录器方向的GND与产品的GND需要连接在一起吗?
问题3:1250的SDA与SCL是否需要上拉电阻…
Hi,
My original designing use 5V optocoupler to finish the isolation function, optocoupler output drive the MMBF170L mosfet at ON or OFF state with very low frequency.
Now, I feeling ADuM1200 chip also can finish the same function, the better thing is…
hi:
i want to know the suplly voltage of adum1200 and adum1201,if they can work on 5V and 1.8V.
We've been using the ADuM1200AR and 1201AR for a while now. They often produce a small glitch when the output side is already powered up and the input side power is ramping up or down.
I noticed the ADuM1280/1281 should be drop in replacements but…