CAPTIVATE-FR2633: resistors used on Board to Captivate elements

6058396

Hello,

Which resistors are used on the CAPTIVATE-FR2633 to the CAP Pins?

Which resistors are recommended?

I have sliderpcbs which have 560 ohm resistors, can i directly plug them in the CAPTIVATE-FR2633 or do I have to desolder the resistors on the prototyping kit?

over 4 years ago

0 Ling Zhu2 over 4 years ago

TI__Genius 9570 points

Hi,

Yes you can.

Ling

0 6058396 over 4 years ago in reply to Ling Zhu2

Prodigy 180 points

Thanks for the fast response.

Could you please give me a few more details what the results will be? does it just work or does it work perfectly? does it not matter which size resistor?

0 Ling Zhu2 over 4 years ago in reply to 6058396

TI__Genius 9570 points

Hi ,

These resistors provide ESD protection.

http://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/CapTIvate_Design_Center/latest/exports/docs/users_guide/html/CapTIvate_Technology_Guide_html/markdown/ch_design_guide.html?highlight=resistor#id6

Ling

0 6058396 over 4 years ago in reply to Ling Zhu2

Prodigy 180 points

In my understanding the ESD protection is given by the overlay itsself and the primarily use of the resistor works as a low pass filter for the processor input pin...

What is the standard resistor value the evaluation board has?

0 Ling Zhu2 over 4 years ago in reply to 6058396

TI__Genius 9570 points

Yes, your understanding is right.

We use 470 ohm resistor on EVM board.

Ling

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CAPTIVATE-FR2633: resistors used on Board to Captivate elements