CC1310: CC1310F32RHBR is the exact IC we're using for 315 MHz RF application

Elavarasan Thilagar

Part Number: CC1310

Tool/software:

As we're using this IC CC1310F32RHBR for 315MHz for RF application, we could'nt match the Impedance, will you suggest the circuit is fine or anything to be changed? Need to modify any value of Capacitor and inductor?

Kindly do the needful

Thanks in advance

over 1 year ago

0 ZC over 1 year ago

TI__Genius 17955 points

Hi,

It looks like you are using the reference design for 868/915 MHz - this will not work for the frequency band you are targeting.

Please use the reference design CC13xxEM-7XD-4251 (SWRC330): https://www.ti.com/lit/zip/swrc330

It is designed for the 433 MHz band, but will give much better performance for operation at 315 MHz than your original schematic (it might require some additional tuning for optimal performance).

Regards,

Zack

0 Elavarasan Thilagar over 1 year ago in reply to ZC

Prodigy 135 points

Hi team

I've reffered the document by your shared link

But I've changed components as per your schematics, impedance not matched properly for our 315MHz application

Will you give accurate parameter for passive components for our circuit to match the impedance ?

0 ZC over 1 year ago in reply to Elavarasan Thilagar

TI__Genius 17955 points

Hi,

We do not have a design fully optimised for 315 MHz. You will need to start with the linked reference design, test the initial performance, and potentially need to manually adjust the component values.

However, the values suggested by FI in the following thread may yield positive results so you can test with those values: https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/510850/cc1310-design-at-315mhz

Regards,

Zack

Sub-1 GHz

Sub-1 GHz forum

CC1310: CC1310F32RHBR is the exact IC we're using for 315 MHz RF application