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CC2340R5-Q1: CC2340R5-Q1: Max Frequency Drift rate is failing for CC2340R52E0WRHBRQ1 device, How to fix it ?

Part Number: CC2340R5-Q1
Other Parts Discussed in Thread: LP-EM-CC2340R5

Tool/software:

Hello team, 

We are using CC2340R5-Q1 series, CC2340R52E0WRHBRQ1 as a BLE device for Class 2 Product, while testing for TX performance, using SmartRF studio, in conducted mode, Max Drift Rate is failing, its crossing 20 KHz/ 50 us limit at multiple frequency, how we can fix this issue can you please suggest ? 

To, surprise when same testing is done on, LP-EM-CC2340R5 eval board which we have in conducted mode, it's also failing into Max Drift rate at multiple frequency. Where I believe Crystal load cap tunning is done better than our DUT.

Please provide suggestion, as currently we are using Crystal with 50 ppm, it's still under (+/- 120KHz) once tunned for frequency drift error, then the required +/-150KHz. Will crystal load cap tunning will resolve the issue or its something else we may need to do ?