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ISO7741: About EMI test data and countermeasure for EMI

Masanori Tachibana
Genius 5350 points
Part Number: ISO7741

Hello support team,

Is there EMI test data of ISO77xx series ?
(For example, a graph which indicates that ISO77xx clears CISPR22)
And regarding the countermeasures for EMI, is there a constraint on the board pattern? Or do you have any recommended patterns?
Our customer would like to make it a reference.

Sincerely,
M. Tachibana

  • 0
    TI__Prodigy 542 points

    Hi Masanori-san,

    Thank you for using E2E forums!

    Please find the CISPR22 data for ISO77XX below.

    Clearly, ISO77XX passes CISPR22 Radiated Emissions standards and the signature is close to noise floor. You may not need any countermeasures for EMI as ISO77XX clearly meets the standards.

    I hope this answers your question.

    Thank you!

    Best regards,

    Manasa

  • 0 in reply to Manasa Gadiyar10
    Genius 5350 points

    Hello Mansa-san,

    Thank you for sending the data.
    It is very helpful for our customer.
    We will forward it to the customer immediately.
    I understood that the emission level of EMI is so very low that it is not necessary to take measures on pattern in particular.

    Sincerely,
    M. Tachibana