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DP83822I: Selecting Magnetic

g.f.
Guru 15520 points
Part Number: DP83822I

Hi,

I have a question about DP83822I.

I'm searching magnetics which can be used with DP83822I.
I'm planning to use H1102FNL.
This magnetic specfication doesn't meet the recommended transformer specification
which are written at DP83822I datasheet page.100 "Table 137 Transformer Electrical Specification".
It doesn't meet the spec only a little, but will it cause any problem?
pdf1.alldatasheet.com/.../H1102FNL.html

In DP83822I datasheet, there are recommended transformer product listed at Table 136.
We also searching RJ45 connector which include transformer and there no list in datasheet.
Are there any recommended RJ45 connector(include transformer) for DP83822I?
If the transformer in RJ45 connector meets above "Table 137 Transformer Electrical Specification",
can it be used with DP83822I without any problem?

best regards,
g.f.

  • 0
    TI__Mastermind 19780 points
    Hi g.f.

    It seems like the H1102FNL has electrical specs very similar to the transformers listed in the datasheet. I believe the H1102FNL is OK to use. Keep in mind the H1102FNL is only rated to 70 C.

    If the integrated RJ45 + transformer meets the table 137 electrical specifications, it can be used with DP83822. Because most integrated transformers have a permanent schematic, please make sure the transformer is connected as recommended by the DP83822 datasheet.

    Best Regards,
  • 0 in reply to Rob Rodrigues
    Guru 15520 points
    Hi Rob,

    Thank you for the reply.
    Now, I understood which transformer and RJ45+transformer I should choose.

    I will connect transformer center tap to analog power etc.. as recommended in DP83822 datasheet .

    best regards,
    g.f.