iMX7D : about ECSPIx_CLK_ROOT specification

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iMX7D : about ECSPIx_CLK_ROOT specification

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koichisakagami
Contributor II

Dear community,
We have been developing our product with iMX7D.


I have a question about  ECSPIx_CLK_ROOT jitter.

In Data sheet IMX7DCEC Rev. 2, 4.4 PLL electrical characteristics,
it is not described the PLL jitter specification.

[Question]
       Please tell me the PLL jitter specification.

    Best Regards,
    Koichi Sakagami

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Koichi

1. ECSPIx_CLK_ROOT jitter is not much affected by PLLs jitter, as

PLLs jitter is averaged on many PLLs cycles, since ECSPI clock is less

frequency than PLL.

2.  ECSPIx_CLK_ROOT and PLLs jitter are not specified by datasheet,

if you have special reasons for obtaining it, please escalate your

requirements through local fae channel.

Best regards

igor

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Koichi

1. ECSPIx_CLK_ROOT jitter is not much affected by PLLs jitter, as

PLLs jitter is averaged on many PLLs cycles, since ECSPI clock is less

frequency than PLL.

2.  ECSPIx_CLK_ROOT and PLLs jitter are not specified by datasheet,

if you have special reasons for obtaining it, please escalate your

requirements through local fae channel.

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

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

-----------------------------------------------------------------------------------------------------------------------

View solution in original post

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koichisakagami
Contributor II

Dear igor san,

Thank you for your advice.
I will consider them.

       Best Regards
       Koichi Sakagami

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