Hello all,
I'm designing an Ethernet interface to talk to an Arduino that will use an ENC28J60 chip. Datasheet here:
http://ww1.microchip.com/downloads/en/DeviceDoc/39662c.pdf
On page 7 it describes having a ferrite bead between 3v3 and a certain point on the circuit for EMI suppression. The ONLY info given on the part is that it "needs to be rated for at least 80mA."
This will show my ignorance, but I'm having a really hard time selecting a part, since I've never worked with a circuit that included a ferrite bead in this manner before.
There are a few commercial implementations similar to what I'm doing:
http://www.nuelectronics.com/estore/index.php?main_page=product_info&products_id=4
Seeedstudio used to have one in their webstore with EAGLE project files but it's not there anymore.
At any rate, neither of those implementations give any specifics on the part they use, except that it's an SMT part.
I'm looking at Mouser trying to pick a part for my project and I'm 110% confused. How do I pick a suitable part? Can someone suggest a part?
Reasonbly-sized through hole or SMT would be great.
I'm designing an Ethernet interface to talk to an Arduino that will use an ENC28J60 chip. Datasheet here:
http://ww1.microchip.com/downloads/en/DeviceDoc/39662c.pdf
On page 7 it describes having a ferrite bead between 3v3 and a certain point on the circuit for EMI suppression. The ONLY info given on the part is that it "needs to be rated for at least 80mA."
This will show my ignorance, but I'm having a really hard time selecting a part, since I've never worked with a circuit that included a ferrite bead in this manner before.
There are a few commercial implementations similar to what I'm doing:
http://www.nuelectronics.com/estore/index.php?main_page=product_info&products_id=4
Seeedstudio used to have one in their webstore with EAGLE project files but it's not there anymore.
At any rate, neither of those implementations give any specifics on the part they use, except that it's an SMT part.
I'm looking at Mouser trying to pick a part for my project and I'm 110% confused. How do I pick a suitable part? Can someone suggest a part?
Reasonbly-sized through hole or SMT would be great.