Hello,
this request was previously started with CS0943460, but was redirected to by your colleagues.
part:
there is a problem defining pin A1. I find a definition on page 35 and on page 79 too.
The two definitions contradict each other.
For the definition on page 79, we considered that the thermal pad is not symmetrical.
As defined on page 79, A1 is in the red marked on "Part image"
As defined on page 35, A1 is in the green marked on "Part image"
Please help me !
Zoltan Suto
Hi Zoltan,
The images on Page 35 and 79 are relative to the position of Pin A1.
The image on Page 35 is just a 180 degree rotated version of the figure on page 79 OR you could say vice versa as well.
In order to find the position of A1 on the device, just follow the position of the black dot :
For example, in the snip above, corresponding to the circled black dot, the position of the pin A1 is top-left as highlighted by the arrow.
Based on the pin A1 placement, you can now figure out the antenna position.
Hope that clears your concern.
Regards,
Ishita
Hello Ishita,
i will show the problem again.
This is the Part drawing from below. I design the PCB according this drawing. A1 is at the bottom left.
A1 is positioned by the asymmetric thermal pad.
This is the same only on the physical part. A1 is at the bottom left.
I'll turn the part over. The A1 foot marked in red in Figure 2 will be in the lower right corner of Figure 3. So not according to your designation. If the assembly company identifies the part according to your marking (dot at top left), it will rotate the part 180 degrees.
Unfortunately, this has happened !!!
What do you think?
Zoltan Suto
Hello Ishita,
thank you for your further efforts.
My further comment:
If the dot on part top is the marker A1 page 35,
then there is an error the mechanical drawing on page 79 .
The thermal PAD should be shifted in the other direction. Green arrow.
This will solve everything.
Best Regards,
Zoltan
