CC1310 design at 315MHz

Hi, we do not have any design files for 315 MHz - but for 433 MHz.
You can find a link to these files in this post:

https://e2e.ti.com/support/wireless_connectivity/proprietary_sub_1_ghz_simpliciti/f/156/p/472245/1779780#1779780)

Best regards,

FredG

Hi,i see the design of cc1310 are similar at 433 MHz and 868 MHz. Which the difference is the parameters of the balun and filter. I will design a applicationof cc1310  to fit the previous product at 315 MHz. The follow picture shows the parameters at 433 MHz. I want to know how to choose the parameters of the balun and filter at 315 MHz.. 

Hi you can try the following changes. Although these are for 345MHz operation, but you should see a reasonably good performance at 315MHz as well. You should try to modify a CC1310 EM with the following parts and test it for 315MHz operation.

L21,L12 to 33nH LQW15AN33NG00
L13,L14 to 24nH LQW15AN24NG00
C11, C22 to 4.7pF GRM1555C1H4R7CZ01
C12, C14 to 10pF GRM1555C1H100JZ01
C13 to 18pF GRM1555C1H180JZ01
L11 120nH use LWQ part.

Thanks a lot. I will try it.