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So, now I improved my design. As you can see in a), traces at the RPi and the connector are much more regular and symmetric, hence much closer. In b), the GND plane is displayed. There are two vias between two differential pairs, I hope, they will not disturb my return current path too much? Do...
Yeah, I know. I just recently learned, that I have to keep distances constant between the two transmission lines of one differential pair. I started too reckless with designing my first differential pair. But I'm just gaining knowledge reading a book about signal integrity. which I should have...
O, thanks so far. That'll be something I didn't thought about. I will look this up. So the differential pair impedance depends on how thick the board layers are (for example the prepreg layer, as it defines the distance between two conductive layers)? If so, then I would have to calculate and...
Hello everyone,
This is my first Raspberry Pi project where I had to face HDMI layout guidelines, so my question is, if anyone has issues with my design (I would call myself quite a PCB design beginner anyway). As you can see, the HDMI connector is mounted onto the same layer as the RPi CM3, so...
Hello,
I’ve got some issues identifying a SOT-23-6 SMD labeled „BMFAD“ while reverse engineering some pcb. I‘ve seen the same circuit, where this thing is also labeled as „BRYAA“, which I think only differs in some voltage values a bit. It has the pins 1,2,5,6 connected to the positive voltage...
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