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Author Topic: Cointerra GSA Card and component info.  (Read 1263 times)
r@m
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October 04, 2014, 03:35:23 PM
 #1

Hi guys, hope this is the relevant section.

I'm a 3D modeller and have been tasked to reproduce a Cointerra GSA Card similar to this one.

http://cointerra.com/asic-processor-fabout-bumpout-dates-announced/

I'm having real difficulty identifying the boards components, particularly the text on the chips, the biggest image I found is blurred, and it's impossible to tell what is says.

I'm not sure of components 1 & 2 in this image.....and the text written on the chips, I've successfully identified and modeled the inductors.

http://i.imgur.com/h92ogiI.jpg

It's incredibly difficult to accurately model from a single blurry top down view, so I've been trawling the web but to no avail.

If anyone could help me, or knows of a source of better images (preferably zoomed in and sharp focused) for the board it would be a massive help.

Many thanks in advance.
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DocileDoe
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October 05, 2014, 05:56:18 PM
 #2

1 is an IR direct FET.
2 is a current sense resistor. 
adib
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October 06, 2014, 04:11:50 PM
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2 seems more like a bridge to me, but i dont have a board Smiley

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October 07, 2014, 01:08:30 AM
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2 seems more like a bridge to me, but i dont have a board Smiley

I'm not sure what you mean by a bridge (a jumper?) but it looks a lot like a Vishay current sense resistor http://www.digikey.com/product-detail/en/WSL39212L000FEA/WSLM-.002TR-ND/1884885

r@m
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October 12, 2014, 09:55:48 PM
 #5

Damn, I've only just seen this, my bad for not setting up notifications properly.

DocileDoe, you nailed it, but I labeled "1" as a crystal oscillator and just modeled "2" from eyeballing.

The structures accurate enough, and unless you go macro it's not going to be too apparent, the project was for a mockup for a new mining machine which has yet to be launched, so I can't post screens of the model just yet.

Thanks for your help.


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