[Arm-netbook] HDMI High-Frequency Layout: Recommendations--Taper

Luke Kenneth Casson Leighton lkcl at lkcl.net
Sat Jan 6 09:17:33 GMT 2018


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crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68


On Sat, Jan 6, 2018 at 7:12 AM, Richard Wilbur <richard.wilbur at gmail.com> wrote:

>> yyup.  have to use the 1800mhz 1.5v x8 DDR3 IC, which fortunately
>> happens to be down-compatible with 667mhz.  the 1.35v DDR3L variant of
>> the same chip is *not*.
>
> Your changes to the power supply capacitors and vias should
> help accommodate faster edges, etc. from the faster chips.

 yehyeh.  not sure if the A20 can handle faster, but we'll see what
happens.  some people have managed 450mhz i think.

l.



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