CC113L: Measuring RSSI of a sine wave

GuS

Part Number: CC113L
Other Parts Discussed in Thread: CC110L, CC1311R3

Tool/software:

Hello, I am trying to figure out if I can use the RSSI level from CC113L to read the power level of a sine wave, sort of like a spectrum analyzer.

Thanks

11 months ago

+1 ZC 11 months ago

TI__Genius 17785 points

Hi,

You can convert the RSSI reading to an absolute power level, please see:

Section 5.18.2 of the CC110L Datasheet: https://www.ti.com/lit/swrs109
SWRA114 (RSSI Interpretation and Timing): https://www.ti.com/lit/swra114

I imagine you would then set the CC110L to run in a continuous RX test whilst also performing a frequency sweep.

You cannot extract the raw IQ data from the CC110L, however. That is possible using a patch for the CC131x and CC135x devices: SWRA571 (CC13xx IQ Samples): https://www.ti.com/lit/swra571

Regards,

Zack

0 GuS 11 months ago in reply to ZC

Prodigy 60 points

Thanks for the suggestions Zack. How do I get eval boards for the CC113L/110L? I don't see any options on the website.

0 GuS 11 months ago in reply to GuS

Prodigy 60 points

One more followup. Are these chipsets above recommended for new designs? If not these, are there others with similar capabilities recommended for new designs? Thanks

0 ZC 11 months ago in reply to GuS

TI__Genius 17785 points

You would need to look at a 3rd party vendor as we do not have any eval boards available currently (it is not decided what our approach for eval boards for those devices are going forward is yet). You can use our Third Party Wireless Module Search Tool: https://www.ti.com/tool/3P-WIRELESS-MODULES

It is still an active part, so it can be used for new designs.

The alternative would probably be the CC1311R3 SoC.

Regard,

Zack

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CC113L: Measuring RSSI of a sine wave