The absolute maximum ratings of i.MX6DQ HDMI, PCIe, SATA supply voltages.

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

The absolute maximum ratings of i.MX6DQ HDMI, PCIe, SATA supply voltages.

Jump to solution
838 Views
satoshishimoda
Senior Contributor I

Hi community,

Our customer have a question about i.MX6DQ electrical characteristics.
Please see Table 4 in i.MX6DQ datasheet (IMX6DQCEC Rev.4), the absolute maximum ratings of the following supply voltages are not defined in this table.


HDMI_VP, HDMI_VPH
PCIE_VP, PCIE_VPH
SATA_VP, SATA_VGH

Would you let us know their absolute maximum ratings?


Best Regards,
Satoshi Shimoda

Labels (2)
0 Kudos
1 Solution
616 Views
Yuri
NXP Employee
NXP Employee

Hello,

  Absence  of absolute maximum ratings for i.MX6DQ HDMI, PCIe, SATA means,

that values, out of maximum values in Table “Operating Ranges”, are not allowed.

Have a great day,
Yuri

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

View solution in original post

0 Kudos
4 Replies
617 Views
Yuri
NXP Employee
NXP Employee

Hello,

  Absence  of absolute maximum ratings for i.MX6DQ HDMI, PCIe, SATA means,

that values, out of maximum values in Table “Operating Ranges”, are not allowed.

Have a great day,
Yuri

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

0 Kudos
616 Views
satoshishimoda
Senior Contributor I

Dear Yuri,

Thank you for your reply.

I have three more questions.

[Q1]

In fact, I got a reply what will be happen if HDMI_VP exceeds the operating range in i.MX6DQ HDMI behavior when supply higher voltage than operating range to HDMI_VP. .

Of course, I understand the reply is not official comment.

So I want to official comment if the supply voltages exceed the operating ranges.

As per your reply, NXP NEVER guarantee the chip function and reliability officially if the supply voltages are out of "Operating Ranges" , and maybe i.MX6 is damaged, right?

[Q2]

If the above understanding is correct, would you let me know whether other block is damaged also?

(e.g. if HDMI_VP exceeds 1.3V, ARM core will be damaged also)

Or other block is no problem since the power rail is isolated?

[Q3]

Can we prevent damages for i.MX6 chip by disabling (non used) the function if the supply voltages for HDMI, PCIe, SATA exceeds the operating ranges.

(in other words, if HDMI_VP exceeds the operating ranges, disable HDMI).

I believe i.MX6 chip is damaged even if the function will be disabled.

Is this correct?

Best Regards,

Satoshi Shimoda

0 Kudos
616 Views
Yuri
NXP Employee
NXP Employee

Hello,

 Please look at my comments below.

1.

As per your reply, NXP NEVER guarantee the chip function and reliability officially

> if the supply voltages are out of "Operating Ranges" , and maybe i.MX6 is damaged, right?

Basically  - yes ...

2.

would you let me know whether other block is damaged also?

3.
Can we prevent damages for i.MX6 chip by disabling (non used) the function if the supply voltages

> for HDMI, PCIe, SATA exceeds the operating ranges.

   But customers can apply to NXP marketing with request to implement

additional characterizations. 

Regards,

Yuri.

0 Kudos
616 Views
satoshishimoda
Senior Contributor I

Hello Yuri,

2, 3

>  But customers can apply to NXP marketing with request to implement
> additional characterizations. 

Our customer's request is not updating the spec.

They just want to know the impact of chip damage when too high voltage is supplied.

Could you confirm it to your expert team or design team?

Best Regards,

Satoshi Shimoda

0 Kudos