Power supply decoupling recommendations for i.MX7D/S

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Power supply decoupling recommendations for i.MX7D/S

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ko-hey
Senior Contributor II

Hi all

Let me confirm about power supply decoupling recommendations for i.MX7D/S.

According to the latest Hardware Development Guide for i.MX7D/S, the following comment is in the table 8.

When VDD_SNVS_IN is not powered by a battery, it is recommended that VDD_SNVS_IN = VDD_IP8_IN.

I want to ask above comment.

Q1.

I can't find VDD_IP8_IN signal. Is this VDDA_1P8_IN ?

Q2.

If Q1 is yes, I think it can't connect together because the operating range is different as below.

pastedImage_1.png

How can user connect ?

Ko-hey

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6 Replies

152 Views
Yuri
NXP TechSupport
NXP TechSupport

Hello,

  Agree, considerations about VDD_IP8_IN (VDDA_1P8_IN  ?) in the Development Guide look strange.

  I've informed the team about it. 

Have a great day,
Yuri

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152 Views
ko-hey
Senior Contributor II

Hi YuriMuhin_ng

Do you have any update for this ?

Ko-hey

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152 Views
Yuri
NXP TechSupport
NXP TechSupport

Hello,

  the issue is under consideration. I am waiting results.

Regards,

Yuri. 

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152 Views
akifumiokano
NXP Employee
NXP Employee

Hello Yuri, 

Do you have any update? Please let us know how the progress. 

rgs / okano

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152 Views
Yuri
NXP TechSupport
NXP TechSupport

Hello,

   the issue is still under consideration.

Regards,

Yuri.

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152 Views
ko-hey
Senior Contributor II

Hi YuriMuhin_ng

It have been taken for over three weeks.

When can the team finish the consideration ?

We can't continue the development.

Ko-hey

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