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Visitor II
November 11, 2025
Solved

ST1VAFE3BX 50/60Hz notch filter?

  • November 11, 2025
  • 1 reply
  • 157 views

In application note TN1571 "Reference design based on the ST1VAFE6AX and ST1VAFE3BX biosensors..." Table 2 mentions that ST1VAFE3BX has a selectable 50/60Hz notch filter. However, there's no further reference to this filter or how to enable it in the datasheet.

Is this an error in TN1571, or something I'm missing.

Thank you.

 

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    This topic has been closed for replies.
    Best answer by Federica Bossi

    Hi @bwilkins ,

    Yes, there is a typo. The embedded notch filter is available only in ST1VAFE6AX. For ST1VAFE3BX, if you need it, you can implement digital filtering in post process.

    1 reply

    Technical Moderator
    November 12, 2025

    Hi @bwilkins ,

    Yes, there is a typo. The embedded notch filter is available only in ST1VAFE6AX. For ST1VAFE3BX, if you need it, you can implement digital filtering in post process.

    bwilkinsAuthor
    Visitor II
    November 12, 2025

    Thank you for confirming.