topic Re: I.MX6Q SABRE SDP PCB stackup in i.MX Processors

I.MX6Q SABRE SDP PCB stackup

technect — Mon, 08 Aug 2016 08:59:51 GMT

I found attached PCB stackup file for SDP board and I checked the stackup of LAY-27392_C.brd. I got to know they are different.

In attached file, impedance of differential 100 ohm on top and bottom layer is controlled 3.7/9/3.7, but controlled 3.7/5.3/3.7 in Lay-27392.brd. Differential 90 ohm is also different. I think LAY-27392 seems to comply with the Hardware Development Guide document (IMX6DQ6SDLHDG).

In addition, the thickness information is also different. LAY-27392 is 41.74 mil (1.06 mm) as below picture, but actual measurement value is 62 mil (1.57mm). I don't know what stack-up I refer.

I want the exact data of LAY-27392 for impedance control.

Re: I.MX6Q SABRE SDP PCB stackup

Yuri — Tue, 09 Aug 2016 01:14:33 GMT

Hello,

Please refer to the following

How much is thickness of MCIMX6DL-SDP pcb?

Have a great day,
Yuri

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Re: I.MX6Q SABRE SDP PCB stackup

technect — Tue, 09 Aug 2016 21:04:34 GMT

Thanks Yuri.