A RT3050 PCB

rt3050board

So I removed the components with a hot air rework tool, and once that was done I stuck the board in a scanner. It was still a little hard to see the traces under the silkscreen and mask so I sanded most of it off.

Here’s the board with most of the silkscreen and mask sanded off.
sand1

And with most of it still intact:

scratched1

front

The backside image has been flipped horizontally so the images can be overlaid.

back

This SVG contains the layers aligned, and a bunch of the traces mapped out/annotated:

rt3050p

RT3050.svg

I’ve also been putting a kicad design together based on this chip, you can find the files here:

rt3050layout

rt3050.tar

A few other random images of the original PCB:

RT3050_CPU

rt3050xl

Useful datasheets:

150-30732-EN29LV320

RT3050_5x_V2.0_081408_0902

I couldn’t find a datasheet for the Zentel A3V28S40ETP-G6 on this board, however it seems to be similar to the M12L128168A:

M12L128168A

The crystal on this board seems to be a SMD3225 layout, I guess similar to this part:

smd3225

AIC809-29PU, RA29P:

RA29P

EH11A – AZ1117 (LM1117?)

DSA00153748

HuanLin480ApplicationNote

SIGe 2597L (Skyworks, 2.4GHz amp):

SIGe2597L

SIGe2597L