CC2652R: The requirement of Ripple voltage in VDDS of CC2652R

Troyson Li

Part Number: CC2652R

Hi Team ,

Can not find any informations about the requirement of Ripple voltage in VDDS of CC2652R . Can you help to offer the information ? The VDDS will supplied by

battery directly and It's important for customer to know the requirement . Thank you!

over 3 years ago

0 FI over 3 years ago

TI__Mastermind 20210 points

Hi,

I have forwarded this to HW team. They will get back to you as soon as possible.

Regards

0 PM over 3 years ago in reply to FI

TI__Mastermind 27145 points

Hi,

Ripple voltage requirement varies with the noise/switching frequencies.

So, we recommend to copy and use our Reference design for Power supply filtering.

Thanks,

0 Troyson Li over 3 years ago in reply to PM

Expert 2455 points

Hi PM ,

Customer has copied TI reference disign in their sch. Due to the VDDS is supplied by a battery directly and different battery will produce different ripple voltage.If TI can guide the limits of ripple voltage in VDDS. Customer can choose proper battery to guaranteed system stability. Thank you!

0 Troyson Li over 3 years ago in reply to PM

Expert 2455 points

Hi PM ，

Do you have another suggestions？ Thank you!

0 Troyson Li over 3 years ago in reply to PM

Expert 2455 points

Hi PM，

Do you have another suggestions？ Thank you!

0 PM over 3 years ago in reply to Troyson Li

TI__Mastermind 27145 points

Hi,

If they are using Battery they should not have any issue with Ripple because the Batteries are source of clean Power supply. That means Batteries don't generate any ripple.

We recommend to use our Reference Design in order to achieve data sheet performance.

If the observe any issues then can send their Schematic in PDF and PCB Layout in Gerber format for review.

You can request the Design Review by using a link on TI website (Please check under CC2652 Product page).

Thanks,

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CC2652R: The requirement of Ripple voltage in VDDS of CC2652R