DP83TC812S-Q1: EMC performance

Kung Poyuan

Part Number: DP83TC812S-Q1

Tool/software:

HI TI Teams

As shown in the attached diagram, the datasheet mentions that it can pass Level IV.
If the goal is to pass Level V, are there any recommended countermeasures?
(Such as adding decoupling capacitors to the circuit, incorporating LFP, or reducing the driver strength of the IC.)

9 months ago

0 David Creger 9 months ago

TI__Mastermind 26782 points

Hi Kung,

Please send me a direct message, I would like to understand more about your application.

Thanks,

David

0 Kung Poyuan 9 months ago in reply to David Creger

Prodigy 241 points

Sent, please confirm

0 TING LIN WANG 9 months ago

Prodigy 20 points

Hi David
Supplementary explanation,the EMI test regulation is CISPR25 Level 5 for radiation, and the failed frequency range is 26 MHz to 68 MHz.

0 David Creger 8 months ago in reply to TING LIN WANG

TI__Mastermind 26782 points

Hello Kung, Ting Lin,

We can share the emissions compliance report, but only under NDA. Can you please reach out to your field applications engineer at TI, who will be able to share this under NDA.

Can you please let me know the end application for this project? Where will the PHY be used? This is helpful for me to understand the relevant standards.

By the way, Class IV is referring to Open Alliance IEEE 100BASE-T1 EMC Test Specification for Transceivers, not CISPR 25. Class IV is the highest level defined by this standard.

Thanks,

David

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DP83TC812S-Q1: EMC performance