Author Topic: I thought I was listening to Dave in the future  (Read 1678 times)

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Offline frrobert

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I thought I was listening to Dave in the future
« on: March 12, 2016, 08:57:48 pm »
I came across this Youtube video today and I thought I had time traveled to the future and Dave was doing a Teardown Tuesday video when he is old and grey.  :-DD

 

Offline SeanB

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Re: I thought I was listening to Dave in the future
« Reply #1 on: March 12, 2016, 09:38:20 pm »
He is lucky he got the one with a chip inside that COB. I have seen the fakes where the same board is used, but the USB sockets are simply connected in parallel along the line, with the black blob, and the 2 small mystery SMD caps and the fake 12MHZ crystal flapping around in the breeze, simply being there to fool you. Looking at the top of the ultra thin board you see there is no die attach point, and the USB lines simply are going through the blob and splitting there under the blob, with the crystal connections stopping right at the edge of the blob.

I just cut the PCB traces after the first outlet, and use it as a simple USB extension cable, as all I wanted it for was as an extension for a short lead behind the case in any case, so it did the job for that low current low rate job.  Mouse works fine over it, though I have my doubts if it would actually support full speed use, as the thin cabling is totally lacking in both impedance matching, twisted pair construction or shielding.
 

Offline Towger

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Re: I thought I was listening to Dave in the future
« Reply #2 on: March 12, 2016, 11:09:26 pm »
He tends to get himself into more trouble for this views than Dave. We'll give Dave a few years to catch up.

Have a look at this teardown:
 

Offline crispy_tofu

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Re: I thought I was listening to Dave in the future
« Reply #3 on: March 13, 2016, 02:18:38 am »
I found this one amusing:
 

Offline @rt

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Re: I thought I was listening to Dave in the future
« Reply #4 on: March 13, 2016, 02:15:38 pm »
It’s got some sort of PCA inside it what more do you want? :D
 


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