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reginaldroundtree
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re: Teardowns find Fujitsu FCRAM in Nintendo 3DS
reginaldroundtree   4/1/2011 1:39:25 AM
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I don't think it's any surprise, considering the 3DS has three cameras in it. THREE OF THEM.

selinz
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re: Teardowns find Fujitsu FCRAM in Nintendo 3DS
selinz   3/29/2011 10:49:45 PM
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I wonder if Fujitsu's DSLR's have this. That seems like an obvious application... The Nintendo 3DS is less obvious to me

Duane Benson
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re: Teardowns find Fujitsu FCRAM in Nintendo 3DS
Duane Benson   3/29/2011 4:41:10 AM
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Designers used to take great pains to avoid sole-sourced components. Years ago, I think that was very wise. Maybe it still is, but there are so many specialized chips out these days that I'm not sure how practical or at all realistic it is. If they lost the supplier for the FCRAM, they'd have to re-design some other type of RAM in.; maybe even take a performance hit. However, if their CPU went unavailable, they'd most likely have to make some design changes to get another manufacturer's CPU in there. Rather than looking at sole sourced components, I'd be interested to see how many key components are not sole-sourced.

Dave.Dykstra
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re: Teardowns find Fujitsu FCRAM in Nintendo 3DS
Dave.Dykstra   3/29/2011 4:27:24 AM
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The mere fact that the FCRAM is being used is exciting. And, despite the potential downside of having a single supplier, sometimes that is the only way to get a jump out ahead of the competition. Of course, if FCRAM finds it's way into a number of products or even only a couple of big selling products, then it should be only a short time until there is a second source available.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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