SUGGESTIONS FOR ETHERNET PHY INTERFACE ALONGWITH FIBER INTERFACE AND PoE

sooraj kumar

Other Parts Discussed in Thread: DP83849IF, DP83848I

HELLO TI ,

WE HAVE A EXISTING CONTROLLER WHICH HAS A MAC INTERFACE AS OF NOW. WE ARE PLANNING TO ADD A PHY INTERFACE 10/100 MBPS (COPPER AS WELL AS FIBER) AND POE FEATURES..

CAN ANY ONE PLEASE SUGGEST SOME REFERENCES ABOUT HOW TO GO ABOUT MAKING A CIRCUIT WHICH SUPPORTS ETHERNET PHY INTERFACE,FIBER INTERFACE AND ALSO PoE.

SOME REFERENCE DESIGNS WOULD REALLY HELP US OUT.

WAITING FOR POSITIVE REPLY.

THANKING YOU IN ADVANCE....

over 9 years ago

0 Patrick OFarrell over 9 years ago

TI__Mastermind 31600 points

The DP83849IF device is a dual port device that supports copper and fiber. The DP83849IF EVM (www.ti.com/.../dp83849ifvs-evk) includes a connector that would support connection to a PoE daughter card, but does not include any PoE circuitry on the EVM itself.

The DP83848 is a single port device that supports only copper. However, we have a DP83848 EVM (www.ti.com/.../dp83848i-poe-ek) that includes some PoE PD circuitry on the board.

Hopefully the combination of these two boards can give you some direction on how to develop your new application.

Patrick

0 sooraj kumar over 9 years ago in reply to Patrick OFarrell

Prodigy 90 points

Thanks Patrick,

I had a small query, DP83849IF ans DP83848 are similar ICs, So, will the remaining components like the resistors and capacitor values will also be the same for will they vary??

please let me know.

Thank you.

0 Patrick OFarrell over 9 years ago in reply to sooraj kumar

TI__Mastermind 31600 points

The external components are very similar. The easiest way to see this is to compare the base (non-PoE) EVMs for the the DP83848I (www.ti.com/.../dp83848i-mau-ek) and the DP83849IF (www.ti.com/.../dp83849ifvs-evk)).

Patrick

Interface

Interface forum

SUGGESTIONS FOR ETHERNET PHY INTERFACE ALONGWITH FIBER INTERFACE AND PoE