Tool/software:
Hello,
The pinout sketched in the datasheet doesn't illustrate the ground pins on the ends of the LDC1101 package. I could not find a clear layout guideline for this part.
The ground pins on the sides are seen in the EVM layout soldermask layer
I found this attached USON guideline on these TI forums and it seems to match. Can you confirm this attachment is 0410.DRC10_ePOD_4218878_datasheet.pdfTI's recommendation for the LDC1101 PCB footprint?
Hello Arthur,
The LDC1101 does not include ground pins on the side like the footprint you show. See example below. I recommend using Ultra librarian to generate the footprint for your CAD software. You can use the link below to select your CAD format and download the symbol.
Hi Eddie,
These ground pins on the sides are visible in the 3D model at the Ultra Librarian link you shared.
Also, they are visible on the LDC1101EVM, as they should be since they are defined in the soldermask gerber data for the LDC1101EVM.
.
Are you saying TI's guidance is to not connect these pins to ground on the PCB?
You are correct. Sorry for the mix up. I also checked the layout of the EVM, where these pins are grounded. See below. I would recommend grounding these pins as shown below.
