AWR1843AOP: PMIC_CLKOUT NODE (series resistance 10K)

MINKYU CHOI

Part Number: AWR1843AOP

Tool/software:

The EVM board is designed with a series resistance (10K) inserted in the direction of PMIC_CLKOUT NODE, followed by a 3.3V voltage distribution (7.87K at the top/ 82.5K at the bottom).
On its board, it is designed with 3.3V voltage distribution (the top 7.87K/the bottom 82.5K) without serial resistance.

Is there no problem without serial resistance in the design?

3 months ago

0 Ajay Narayan 3 months ago

TI__Mastermind 22605 points

Hi,

Thanks for posting. Could you let us know what market and end application you are targeting?

Thanks again,

Ajay

0 MINKYU CHOI 3 months ago in reply to Ajay Narayan

Prodigy 140 points

I'm sorry, but I didn't understand what you were inquiring about.

0 Ajay Narayan 3 months ago in reply to MINKYU CHOI

TI__Mastermind 22605 points

Hi, in order to assign this to the right team, we need to know what the end application is, For example, ADAS or Door sensing or parking assist, etc.

Regards,

Ajay

0 MINKYU CHOI 3 months ago in reply to Ajay Narayan

Prodigy 140 points

Hi,This is for obstacle detection when parking.

0 Ajay Narayan 3 months ago in reply to MINKYU CHOI

TI__Mastermind 22605 points

Thanks for the Input. Let me assign to the right team.

Regards,

Ajay

0 Kundan Somala 3 months ago in reply to Ajay Narayan

TI__Expert 3760 points

Hi Minkyu,

The series resistance is mandatory for SOP0 which is muxed with TDO. However for PMIC CLK_OUT it is not required.
I see a lot of questions related to schematic being asked for this project. Were you able to get the schematic reviewed from TI side?

0 MINKYU CHOI 3 months ago in reply to Kundan Somala

Prodigy 140 points

That's fine. I think that's the answer. Thank you.

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AWR1843AOP: PMIC_CLKOUT NODE (series resistance 10K)