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TAS5414B-Q1: Questions related to the TAS5414B-Q1.

yoonju hwang1
Prodigy 110 points
Part Number: TAS5414B-Q1

hello.

We are working on an AMP design using the TAS5414B-Q1 part.

Please contact us if you have any questions about the circuit during the design process.

In the TAS514BTPHD reference circuit diagram, it is shown that a 10uH Dual Inductor is used for the AMP output.

However, we are trying to construct a circuit using two 10uH single inductors due to parts supply and demand problems. Is there any problem?

Also, regarding inductor selection, is there an inductor spec that needs to be looked at carefully to reduce noise?

Thank you for your reply.

  • 0
    TI__Mastermind 35865 points

    Hello,

    The inductor can easily be a single inductor.  The dual inductor is basically two inductors glued together to save pcb space.

    The inductor choice should be based on the Inductance vs Current Curve (L vs I) and the temperature rise curve.   The inductor has no impact on the audio band noise.  It does have impact on the reduction of the switching noise.  This is inherent to the value of the inductor.  High frequency noise or EMI can be impacted by this inductor.  

    Regards,
    Gregg Scott