DS90UB913A-Q1: IDX Setting.

Kengo.Y

Part Number: DS90UB913A-Q1

Hi team,

I'd like to know about setting R3 for IDXpin.

R3 is set to 10kΩ to set address 7.
However, it changed to OPEN due to the revision change of the datasheet.
Is there a problem with R3 set to 10kΩ?

Sincerely.
Kengo.

over 3 years ago

0 Shruti More over 3 years ago

TI__Expert 6345 points

Hello Kengo,

Can you please clarify which previous version of the datasheet you are referring to? (Maybe share a similar picture)

You should follow the latest revision of the datasheet to set the correct 7-bit address.

Best Regards,

Shruti

0 Kengo.Y over 3 years ago in reply to Shruti More

Guru 11245 points

Hi Shruti,

Thank you for your reply.
I have seen revD.(www.mouser.com/.../ds90ub913a-q1-555909.pdf)

Of curse, I know we should follow the latest revision of the datasheet.
But, I’d like to know the impact if I do not notice the revision change and leave it as it is.

Sincerely.
Kengo.

+1 Shruti More over 3 years ago in reply to Kengo.Y

TI__Expert 6345 points

Hello Kengo,

There isn't any big impact and no issue if R3 is 10k as long as the voltage ratio of VIDX/ V(VDD_n) is still 0 if intended.

Best Regards,

Shruti

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DS90UB913A-Q1: IDX Setting.