PCM1690: Analog power supplies of VCC1 and VCC2

Sadanori Kato

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

over 4 years ago

0 Sadanori Kato over 4 years ago

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 Paul_Frost over 4 years ago 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 Sadanori Kato over 4 years ago in reply to Paul_Frost

Guru 36540 points

Hi Paul-san,

Thank you for your prompt reply.

I understand.

Best regards,
Kato

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PCM1690: Analog power supplies of VCC1 and VCC2