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Original question:

DP83867IR: DP83867

DP83867IR: Question of the Magnetics Component selection for DP83867

XiaoTao Ng
Intellectual 420 points
Part Number: DP83867IR

Hi, AE Team:

 Due to the demanding of low profile magnetics component , I find that HM5149NL from PULSE company is the desired one for my 1000-baseT application.

 But the inductance of HM5149NL provided by the datasheet is not well matched with DP83867( it is 360uH)

 DP83867  suggested that Open Circuit Inductance is 320uH~350uH. 

 Can TI 'team help  and give some  proposals on HM5149NL ?

Best Regards

  • 0
    TI__Genius 16030 points

    Hello XiaoTao,

    After looking at the datasheet of HM5149NL I found that there is one more parameter which is slightly off than the recommended one. Insertion loss is poorer than -1 dB (it goes up to 1.4dB). Do you have another option of transformer with you?

    --

    Regards,

    Vikram

  • 0 in reply to Vikram Sharma
    Intellectual 420 points

    Hi,Vikram:

      I think that performances and functions  is the first  choice for all of us. HM5149NL is slightly off the recommended parameter. When I check them. I am not sure if it is qualified. Your concern is also my concern . So HM5149NL is not the best choice. Thank you for your powerful support.