Tagged Questions

7
votes
2answers
135 views

Is it worth going to so much trouble with Ethernet differential tracks?

I am laying out a PCB containing an Ethernet connector with integral magnetics, and a Micrel KSZ8051MNL Phy. This is for a 100mbps application. In an attempt to reduce EMI, and make the Ethernet data ...
0
votes
2answers
282 views

Discrete Ethernet magnetics

Rather than using an Ethernet magnetics component, is it possible / reasonable to simply use individual isolating transformers? Inside the magnetics component, it's clearly made up of individual ...
6
votes
1answer
720 views

(Why) does this design suck?

I'm designing an Open Hardware door-lock-controller for our hackerspace, to these basic requirements: Be made exclusively from available and inexpensive parts. Read external Wiegand keyboard Read ...