LM25141: EMI data

Kuramochi Tadahiko

Guru 28715 points

Part Number: LM25141
Other Parts Discussed in Thread: LM5141

Hi,

EMI data is mentioned in the datasheet as follows.

My customer would like to know the EMI data of FM-band.

Could you share it if you have?

Best Regards,

Kuramochi

over 8 years ago

0 Terry Allinder over 8 years ago

TI__Expert 3545 points

Kuramochi,

Here is the conducted EMI in the FM band, with out dither.

Terry

0 Ambreesh Tripathi over 8 years ago in reply to Terry Allinder

TI__Expert 6860 points

Hi Terry ,

It seems that the EMI data didnt got uploaded . Can you please tr upload the same .

---Ambreesh

0 Terry Allinder over 8 years ago in reply to Ambreesh Tripathi

TI__Expert 3545 points

Ambreesh,

Here's the LM5141 Conducted EMI in the FM band.

TerryLM5141EMIFBBand.pptx

0 Kuramochi Tadahiko over 8 years ago in reply to Terry Allinder

Guru 28715 points

Terry-san,

Thank you for your information.

I'm recognizing that this is not satisfied the CISPR25 class 5.
Is it correct?

And does the spread spectrum valid on this data?

If it is not, could you provide the data on spread spectrum is valid?

Best Regards,
Kuramochi

0 Terry Allinder over 8 years ago in reply to Kuramochi Tadahiko

TI__Expert 3545 points

Kuramochi,

Yes in the FM band the EVM dosen't meet the CISPR25 class 5 EMI. I've attached the full User's Guide which includes the conduted EMI with Dither enabled.

TerrySNVU522.pdf

0 Kuramochi Tadahiko over 8 years ago in reply to Terry Allinder

Guru 28715 points

Hi Terry-san,

Thank you for your help.

Could you share the data with SS function if you have?
(I understand that SS function isn't used on the EVM measurement)

Best Regards,
Kuramochi

0 Terry Allinder over 8 years ago in reply to Kuramochi Tadahiko

TI__Expert 3545 points

Kuramochi,

I have attached the LM5141 User's Guide. In the User's Guide you will the conducted emmission with SS.

Terry5543.SNVU522.pdf

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LM25141: EMI data