• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 17 subscribers
  • Views 456 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC8520: TX Frequency does not match the setting using PurePath wireless commander

Abraham Lee
Prodigy 20 points

Part Number: CC8520

PurePath wireless commander Configure JS code list below

<func status="enabled">
<name>RF test TX only, channel 1 P=5dBm</name>
<call>simpleRfTest(TX,2406,5,-25,CW,1000)</call>
<opinstr>Transmitting continuously on channel 1 ...</opinstr>
<devreq>dut</devreq>
</func>

The frequency setting is 2406MHz, but the actual frequency is 2405.8MHz.

The spectrum has been checked with signal generator.

  • +1
    TI__Guru**** 223317 points

    Hi Abraham,

    Are you using the CC85XX-CC2590EM-RD or a custom hardware design?  I recommend that you further tune your external crystal using the load capacitance values as the relative offset of the 48 MHz crystal frequency, typically stated in Parts per Million (ppm), is the same as the relative offset of the RF carrier.

    Regards,
    Ryan