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PCM2906 reduce components question

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Replies: 2

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Dear Sir

We want design pcm2906c and hope reduce components.

we don't need HID function, may we leave HID0/HID1/HID2 floating?

for SSPND pin,may we also folating?

I have check PCM2906C EVB, VoutL/R and VinL/R have connect LPF(OPA2353). If we remove LPF, Is there will have any impact?

 

                                                           Best regards,

                                                                      Bogey

 

  • Bogey,

    You should be OK leaving these pins floating.  As for the LPF, these filters typically remove out of band noise and helps with aliasing so ideally that would stay in.

    Patrick Galvin

  • In reply to Patrick Galvin:

    Dear Sir

    thnaks for your reply, it should be ok for me.

                                                     Bogey

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