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JSalm.1
JSalm.1
Associate
November 9, 2020
Solved

Looking for a suitable replacement for Cirrus Logic analogue MEMS microphone WM7121P that is EOL. Have not found any drop in replacement part, any of ST's products that could be a good match?

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    Peter BENSCH
    Peter BENSCHBest answer
    ST Technical Moderator
    November 12, 2020

    It looks like you don't need a mic for ultrasound.

    If the replacement should also be analog, ST has exactly one alternative, but not with the port on top, but at the bottom side: MP23ABS1

    0693W000005BALkQAO.pngThere are a few options more if you'd be able to use mic with digital output, e.g. the IMP34DF05, which is included in the the 10 years product longevity program.

    When your question is answered, please close this topic by choosing Select as Best.

    /Peter

    In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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    1 reply

    Peter BENSCH
    Peter BENSCHBest answer
    ST Technical Moderator
    November 12, 2020

    It looks like you don't need a mic for ultrasound.

    If the replacement should also be analog, ST has exactly one alternative, but not with the port on top, but at the bottom side: MP23ABS1

    0693W000005BALkQAO.pngThere are a few options more if you'd be able to use mic with digital output, e.g. the IMP34DF05, which is included in the the 10 years product longevity program.

    When your question is answered, please close this topic by choosing Select as Best.

    /Peter

    In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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