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DP83869HM: Optical fiber communication

Anmol Jaiswal
Prodigy 210 points
Part Number: DP83869HM
Other Parts Discussed in Thread: DP83869

Tool/software:

Hi,

I have started working on Ethernet media converter that takes input from ethernet and transmits over optic fiber cable.

I have bought one ethernet media converter that has RTL8201FC and it works well for my application.

i want some suggestion regarding DP83869HM if it will work exactly same as RTL8201 or not? If yes is there any firmware or software requirements for this or just need to complete the circuit like plug n play kind.

if there is any reference schematic please suggest that as well.

Here is the media converter i bought from market

Thanks

  • 0
    TI__Genius 13846 points

    Hi Anmol, 

    We expect DP83869HM to work the same way as RTL8201FC. DP83869HM can be programmed two ways: HW or SW. 
    For SW method, please do the following writes:

    For HW method, the following strap configuration must be done for the pins mentioned in the below table:




    Please note that 10M media conversion is not supported on DP83869. 

    Best,
    J


  • 0 in reply to J
    Prodigy 210 points

    Hi J,

    Thanks for your response.

    what will be the best suitable alternate solution to RTL8201FC(QFN48).

    Have seen parts like DP83869, DP83822, DP83848.

    Please do provide some reference schematic for the same.

    Thanks

  • 0 in reply to Anmol Jaiswal
    TI__Genius 13846 points

    Hi Anmol,

    For replacement to RTL8201FC, I would suggest DP83822. 
    For reference schematic design, please refer to DP83822EVM and TIDA-00928. 
    For the EVM, the user's guide includes the schematic towards the end of the document. 

    Best,
    J