Decoupling on EMIF2 if not used

AM5728_User

Prodigy 250 points

I have a design based on AM572x IDK EVM but DDR is only on EMIF1.

To save space, I'm wondering if I can remove decoupling on VDDS_DDR2. At least C440 and C13.

Do you have any feedback on that?

Thank you

over 9 years ago

0 Biser Gatchev-XID over 9 years ago

TI__Guru**** 393215 points

See processors.wiki.ti.com/.../AM572x_Schematic_Checklist

0 AM5728_User over 9 years ago in reply to Biser Gatchev-XID

Prodigy 250 points

I followed all these recommendations, but there is nothing about decoupling EMIF2.
So my question is still the same: Can I remove decoupling on VDDS_DDR2. At least C440 and C13?

Thank you

0 Biser Gatchev-XID over 9 years ago in reply to AM5728_User

TI__Guru**** 393215 points

I would suggest placing at least 1-2 bulk (10uF) and 1-2 HF decoupling capacitors.

0 AM5728_User over 9 years ago in reply to Biser Gatchev-XID

Prodigy 250 points

Thank you, I will place 2x 100nF + 2x 1uF + 2x 10uF

Processors

Processors forum

Decoupling on EMIF2 if not used