Hi!
Starting a design with an STM32WL31K8V6. This is the 32 pin VFQFPN32 variant.
As far as I can see, there is no HW Reference PCB that covers the 32 pin package. Looking at the datasheet
https://www.st.com/resource/en/datasheet/stm32wl31kb.pdf
on p.32, there is Figure 10. "STM32WL31xx application circuit with SMPS, VFQFPN32 package" which shows the typical circuitry around the chip (i.e. the matching network).
However, looking into the details of AN5457, latter shows a different matching topology than the datasheet. It´s similar, but still...
https://www.st.com/resource/en/application_note/an5457-rf-matching-network-design-guide-for-stm32wl-series-stmicroelectronics.pdf
Since the AN5457 shows details on how to so the matching I tend to use the topology shown there but what is the reason that there are different references?
Thanks
