AnsweredAssumed Answered

Distance of DDR3 signal lines in i.MX6.

Question asked by Keita Nagashima on Nov 27, 2014
Latest reply on Dec 1, 2014 by Artur Petukhov

Dear Sir or Madam,

 

Hello.

I have question about freescale's recommendation about distance of DDR3 signal lines in i.MX6.

Refer to "Table 3-1. Stackup implementation" in Hardware Development Guide for i.MX6DQ6SDL, Rev. 1.

Trace width is 4.7[Mils] with Single ended.

 

Generally, distance of DDR3 signal lines are recommended twice of length of the Trace width.

But, the distance of signal lines of SABRE-AI were about 4.0 [Mils].

It is very narrow.

 

[Question]

Could you tell me the recommendation about distance of signal lines?

Or, please give me your advice.

 

Best Regards,

Keita

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