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PCM1690: Analog power supplies of VCC1 and VCC2

Sadanori Kato
Guru 36540 points
Part Number: PCM1690

Hi,

Are the analog power supplies of VCC1 and VCC2 connected internally?
Additionally, is my understanding correct that VCC1 is the anaog power supply for VOUT5+/- ~ VOUT8+/- and VCC2 is the analog power supply for VOUT1+/- ~ VOUT4+/- ?

Best regards,
Kato

  • 0
    Guru 36540 points

    Hi team,

    Unfortunately, I haven't obtained the information on my question yet. So, could you please tell me your comments?

    Best regards,
    Kato

  • 0 in reply to Sadanori Kato
    TI__Guru 53633 points

    Hi Kato-san,

    Sorry I missed your question yesterday.

    You are correct about the VCC pin and the supplied channels.  I do not think they are connected directly together in the design, but they should be connected to the same potential on the PCB.  They likely still have some higher impedance connection to each other, but I would not recommend only providing +5V to one pin.

    Thanks,
    Paul

  • 0 in reply to Paul_Frost
    Guru 36540 points

    Hi Paul-san,

    Thank you for your prompt reply.

    I understand.

    Best regards,
    Kato