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Chipamp IC amp kits & PC boards from ChipAmp

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Old 5th March 2016, 02:52 PM   #1
Hogwild is offline Hogwild  Canada
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Default Overlays for Chipamp.com LM3886 boards?

Hi everyone:

Has anyone created overlays for the LM3886 boards from Chipamp.com?

I could use really use these for something at the moment. Anything here or is there anything posted on another Website?

Thanks

Last edited by Hogwild; 7th March 2016 at 10:55 PM.
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Old 7th April 2016, 08:51 PM   #2
peranders is offline peranders  Sweden
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Overlays for Chipamp.com LM3886 boards?
Have you checked the available documentation at the website? I can find it in 5 seconds, you know.
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Old 8th April 2016, 02:42 AM   #3
Bill_P is offline Bill_P  United States
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Is this what you are looking for?
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File Type: pdf LM3886 Chipamp boards.pdf (61.6 KB, 84 views)
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Old 27th April 2016, 02:40 AM   #4
Hogwild is offline Hogwild  Canada
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Bill_P:

Thanks, but not quite. I'm still an extreme newbie (even after all my efforts and travails). But I believe an overlay shows the circuit traces on the bottom overlaid with the component names and/or values on top. In other words, both sets of graphics/text on the same surface.

Last edited by Hogwild; 27th April 2016 at 02:53 AM.
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Old 27th April 2016, 05:50 AM   #5
peranders is offline peranders  Sweden
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Overlays for Chipamp.com LM3886 boards?
When you place the parts you don't need to see the copper pattern, only where to put the part. You haven't try to contact the company you bought the pcb's from?

BTW: You can also look at the physical boards if you want to know how the copper tracks look like.
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Old 28th April 2016, 06:38 AM   #6
Hogwild is offline Hogwild  Canada
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Chipamp.com made it clear to me that they do not have any overlays for their products.

It was a nice thought, though.


Quote:
Originally Posted by peranders View Post
When you place the parts you don't need to see the copper pattern, only where to put the part. You haven't try to contact the company you bought the pcb's from?

BTW: You can also look at the physical boards if you want to know how the copper tracks look like.
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Old 28th April 2016, 05:57 PM   #7
peranders is offline peranders  Sweden
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Overlays for Chipamp.com LM3886 boards?
Just wondering: what do you mean by overlay exactly? Altium Designer for instance has this as term for the component print layer.
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Old 29th April 2016, 10:58 PM   #8
Hogwild is offline Hogwild  Canada
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From:

PCB Layers | BitWeenie

QUOTE:
"Overlay or silkscreen layers provide, among other things, the text designators for your components on the top and bottom layers. If utilizing these layers, separate files should be provided to the fabricator for the top and bottom overlays. There is no need for overlays on internal layers (you’d never be able to see them!). If you don’t care to have text on your board, these files are not necessary. However, text is immensely helpful, especially when debugging boards in the lab."
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Old 29th April 2016, 11:16 PM   #9
grimberg is offline grimberg  United States
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They are called overlays because they are the last layer applied during the manufacturing process. Overlays DO NOT depict traces. They are meant to show component designators and other information like model, version, etc. Most PCB CAD software also include the part's footprint and optionally, its value.
I have assembled several of the Chipamp.com PCBs and all of them, without exception, had the overlay, that is, the white silk screen layer with components' footprint and designator.
What exactly are you missing? What kind of help do you need?
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Old 29th April 2016, 11:33 PM   #10
Hogwild is offline Hogwild  Canada
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To be honest, I don't know exactly, as someone is helping me with this. But what you describe shows the component designators on one side and the traces on the other side. I think what I'm looking for is both on one plane.

EDIT: OR both layers, so that I can superimpose one on top of another

Last edited by Hogwild; 29th April 2016 at 11:48 PM.
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