SRC4192 Handling for the NC pin

Sadanori Kato

Hi,

Does the issue occur if connecting NC pin to DGND directly although we believe that NC pin must be floating ?
Could you please tell us what may happen if occurring ?

Best regards,
Kato

over 10 years ago

0 Diego Melendez over 10 years ago

TI__Guru 57800 points

Hi Kato-San,

As you can see in the EVM, pin 3 (NC) is left floating, right now i don't have the information about the effects on connecting the pin to GND, but I will check if there is any issue and get back to you. I will suggest you to follow the EVM and leave the pin unconnected.

Best Regards,

-Diego Meléndez López
Audio Applications Engineer

0 Sadanori Kato over 10 years ago in reply to Diego Melendez

Guru 36540 points

Hi Diego-san,

Thank you for your reply.
Our customer would like to tie NC pin to DGND if it is not connected to the internal circuit on the silicon.
Your quick response would be greatly appreciated.

Best regards,
Kato

0 daisuke kawasaki over 10 years ago in reply to Sadanori Kato

TI__Expert 4535 points

Hello Diego-san,

I was not able to meet you when I was in Dallas last week. I should have...

Can you follow up on this for Kato-san?

Thank you and best regards,

Daisuke KAWASAKI

0 Don Dapkus over 10 years ago in reply to daisuke kawasaki

TI__Guru**** 189399 points

Hi, Kato-san,

This pin can be tied to anything you want. It is truly Not Connected to anything internal to the IC.

-d2

0 Sadanori Kato over 10 years ago in reply to Don Dapkus

Guru 36540 points

Hi Don-san,

Thank you for your response.
I understood.

Best regards,
Kato

Audio

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SRC4192 Handling for the NC pin