Hi Sebastian,

It looks like some Application Notes (as well as the example projects) are filtered out even if you selected an EZR32 kit, though the documentations and the sources are part of the SDK (I think, you know it, but if you have the default installation folder, you can get the resources at C:\SiliconLabs\SimplicityStudio\v4\developer\sdks\exx32\vXXXX\an). You can get the documentation, if you click on the checkbox on the Application Notes popup window's left bottom corner:
 

and the projects can be imported (as delu suggested) by navigating to the AN's folder:

Best Regards,
Bence

Hi Felipe,

Thank you for reporting this issue!

Sorry, when I checked it, I was able to create examples using 32-bit MCU SDK v5.9, and I wasn't aware that the examples for EZR32 parts are intentionally removed from SDK v6.x.

You can still install the earlier version of the SDK or you might use Simplicity Studio v4.

Best Regards,
Bence

Hi Felipe,

Thank you for reporting this issue!

Sorry, when I checked it, I was able to create examples using 32-bit MCU SDK v5.10, and I wasn't aware that the examples for EZR32 parts are intentionally removed from SDK v6.x.

You can still install the earlier version of the SDK or you might use Simplicity Studio v4.

Best Regards,
Bence

Hi Felipe,

Thank you for reporting this issue!

Sorry, when I checked it, I was able to create examples using 32-bit MCU SDK v5.10, and I wasn't aware that the examples for EZR32 parts are intentionally removed from SDK v6.x. 

UPDATE: The ezradio_ examples, among others, were removed from the 32-bit MCU SDK 6.0.0.0 according to the SDK's release notes.

You can still install the earlier version of the SDK or you might use Simplicity Studio v4.

Best Regards,
Bence

Hi Ratin,

According to internal discussions the detection scheme will not be improved/optimized further: we set such a low detection threshold in exchange for sensitivity gain. At last, the false detects can be filtered out by using CRC.

Best Regards,
Bence

Hi Felipe,

You should install (and then select) 32-bit MCU SDK, as the examples for EZR32 are part of that SDK.

Best Regards,
Bence

Hi Asdf asf,

I apologize for the delay here!

Although, the scale of the 8-bit signal is determined by the filter's bandwidth, you should not calculate it: we recommend rather to measure it with a particular configuration and create your custom slicer based on your measurements.

Thank you for finding the "typo" regarding the oversampling rate: the AN971 is the correct one in strict sense (however, you can config even higher than 10 oversampling rate by increasing bitrate).

Best Regards,
Bence

Hi Nata,

I'm sorry it took so long to response!

Unfortunately you couldn't bypass the input filter. The bandwidth is  ~1/4th of the IQ sample rate, so can set up 36 ksps IQ sample rate with ~9 kHz BW, or you can configure 25 kHz BW with ~100 ksps IQ sample rate. Then you can decimate the oversampled data by a custom decimator implemented on the other processing system you have.

Best Regards,
Bence

Hi Nata,

Could you please detail what did you have now (sharing an .isc file might be the best) and what is your request? 
What do you mean by the target (25 - 28 KHz) bandwidth, and how do you interpret the (36 KHz) IQ sample rate? Do they refer to the Acquisition Channel Bandwidth/Actual Bandwith and the Actual sample frequency entries of the generated log file?

Would it be feasible only to have the IQ sample rate as a radio configuration design constraint and have a custom digital filter implemented on the processing system?

The following forum topics discusses similar cases, you might visit them for further information:
https://www.silabs.com/community/wireless/proprietary/forum.topic.html/custom_slicer_fordemodulation-efr32-Vdxh
https://www.silabs.com/community/wireless/proprietary/forum.topic.html/iq_samples_and_samplingrate-oSk2
https://www.silabs.com/community/wireless/proprietary/forum.topic.html/question_about_rfparametersandrxdemoddata-p3j2
https://www.silabs.com/community/wireless/proprietary/forum.topic.html/iq_radio_mode-QAgx

Best Regards,
Bence

Hi Arno,

I moved your question from the Proprietary Forum to the 32-bit MCU Forum, since this topic is more related to the peripherals than the radio.

Please provide which SDK and example was being used for your test.

Best Regards,
Bence