LAUNCHXL-CC1352R1: How to use external antennas with CC1352R launchpad

Hiago Santos da Gama

Part Number: LAUNCHXL-CC1352R1
Other Parts Discussed in Thread: CC-ANTENNA-DK2

Hi,

I am currently developing a project using the LAUNCHXL-CC1352R1 and I recently realized that the external antenna connections are not completed in the launchpad. As I see it, I would have to unmount R16 and mount R19 and unmount C36 and mount C37 in order to use the JSC connections instead of the PCB antenna. If I want to use the SMA I would have to unmount C482 and mount C483.

Is this information correct? What are the values of these components that should be mounted in the launchpad? Do they have the same values of the components I would have to unmount in order to mount them? Any information about the launchpad and its connections to external antennas would be very useful.

My plan is to use the Sub-1GHz with an external antenna coming from the CC-Antenna-DK2 kit.

Thanks in advance for the help.

over 5 years ago

0 TA12012 over 5 years ago

TI__Mastermind 36385 points

Hiago,

No, you are making it too difficult on yourself. All you need to do is flip the little series capacitor from down to 90 degree angle.

This breaks the connections to the antenna and connects the SMA connector instead. The capacitor will provide a DC blocking function to ensure that no damage happens to equipment and/or devices.

Regards,
/TA

0 Hiago Santos da Gama over 5 years ago in reply to TA12012

Prodigy 230 points

Thank you!

I would like to know what is the manual from where the image you used came from so I can use it as a guide. Also, is it necessary to change anything in terms of programming when using an external antenna?

Best Regards,

Hiago

0 Keith Barkley over 5 years ago in reply to Hiago Santos da Gama

Guru 36815 points

I am sure he added the little blue annotations, but the image can be found by clicking the link in your OP.

0 Keith Barkley over 5 years ago in reply to Hiago Santos da Gama

Guru 36815 points

Just to be a bit more clear, the original figure he used came from SWRA588A - the document that describes the launchpad.
www.ti.com/.../swra588a.pdf

0 TA12012 over 5 years ago in reply to Keith Barkley

TI__Mastermind 36385 points

Yes, that is the correct link. Thanks for posting it.

Regards,
/TA

Sub-1 GHz

Sub-1 GHz forum

LAUNCHXL-CC1352R1: How to use external antennas with CC1352R launchpad