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TPA6166A2: Ferrite Bead Review for TPA6166's Microphone Input Path

Wayne Chen (ex FAE)
Guru 15950 points
Part Number: TPA6166A2

Hi Sirs,

The TPA6166 datasheet specifies the requirement of 22ohm@100MHz of ferrite bead on microphone input path.
The "120 1.2A (such as BLM18BB220SN1)" on the datasheet seems problematic.



Would you please review the specification of the ferrite bead in my customer's design?



Thank you and Best regards,

Wayne Chen
03/13/2021