LAUNCHXL-CC1352R1: Matching network: Balun

Tommaso Polonelli

Part Number: LAUNCHXL-CC1352R1
Other Parts Discussed in Thread: CC1310

Hi,
I'm developing a new project with CC1352, following the evaluation board schematic and the CC1352 datasheet I found some difficulties to design the matching networks (sub-GHz and 2.4 GHz). As well as the CC1310, are there integrated johansontechnology baluns for the CC1352 ?
I did not find any document or reference about this topic.

best regards,

Tommaso

over 7 years ago

0 PM over 7 years ago

TI__Mastermind 27145 points

Hi,

No Balun chip is available for CC1352 at this time. You need to copy the Discrete Balun Circuit from our Reference Design.

Thanks,
PM

0 Tommaso Polonelli over 7 years ago in reply to PM

Intellectual 950 points

Thank you,

where can I find the RF parameters of the CC1352 to simulate and verify the matching network ?

best regards,
Tommaso

0 PM over 7 years ago in reply to Tommaso Polonelli

TI__Mastermind 27145 points

Hi,

As our Reference Design is fully optimized and tested, we recommend to copy the Circuit from our Reference Design.
We use Load-Pull method in designing and optimizing the Balun circuit.

Thanks,
PM

0 Tim Payne over 7 years ago in reply to Tommaso Polonelli

Intellectual 815 points

Tommaso, this is not going to be what you want to hear -- but, to really get good RF performance you probably are going to need to get a VNA and calibrate and tune your final design. I have used the MiniVNA for $400, and learned how to tune using that. In my experience, there's just no great substitute and no amount of simulation is anything close to your final design and hand adjusting elements.

0 TER over 7 years ago in reply to Tim Payne

TI__Guru**** 317180 points

A dedicated IPC for CC1352 is planned for Q3.

But you should be able to use the IPC for CC1310 on the sub 1 GHz path and the CC26xx IPC for the 2.4 GHz path.

0 Tommaso Polonelli over 7 years ago in reply to TER

Intellectual 950 points

Thank you !!

Sub-1 GHz

Sub-1 GHz forum

LAUNCHXL-CC1352R1: Matching network: Balun