TiagoSilva
Member
Hi, here's the problem, the ENC28J60 datasheet says that I need 2x 49,9 Ohm resistors per pair, well, the RJ45 connector I have already have the resistors (and magnetics), but with different values...
Here are the links to both parts datasheets:
The ENC28J60:
https://www.electro-tech-online.com/custompdfs/2010/01/39662c.pdf (page 9 on acrobat)
The Tyco 5-6605758-1 RJ45 connector:
https://www.electro-tech-online.com/custompdfs/2010/01/0900766b807c5bb1.pdf
Can I use this connector, should I even try?
The datasheet doesn’t say anything about these 49.9 Ohm resistors, only about the RBIAS resistor, which influences the TPOUT levels.
Should I risk using the RJ45 connector with internal 75 Ohm resistors instead?
My connector also has common mode chokes for noise attenuation and the ENC28J60 datasheet doesn’t recommend using common mode chokes…
Err…
Here are the links to both parts datasheets:
The ENC28J60:
https://www.electro-tech-online.com/custompdfs/2010/01/39662c.pdf (page 9 on acrobat)
The Tyco 5-6605758-1 RJ45 connector:
https://www.electro-tech-online.com/custompdfs/2010/01/0900766b807c5bb1.pdf
Can I use this connector, should I even try?
The datasheet doesn’t say anything about these 49.9 Ohm resistors, only about the RBIAS resistor, which influences the TPOUT levels.
Should I risk using the RJ45 connector with internal 75 Ohm resistors instead?
My connector also has common mode chokes for noise attenuation and the ENC28J60 datasheet doesn’t recommend using common mode chokes…
Err…