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.

LMX2581EVM: Output frequency is limited if I change the value of R Counter.

Part Number: LMX2581EVM
Other Parts Discussed in Thread: CODELOADER, , LMX2581

Hello TI experts,

My customer now tests LMX2581EVM with CODELOADER software, and there is one problem.

output frequency range is 50 to 3760MHz is datasheet. but if I change the value of R Counter more than 8, VCO output is turned to red.

maximum frequency of output is 1.88GHz, and cannot see the lower frequency with R Counter 8.

is there something that I miss for this test? please let me know if there are anything to check on the datasheet or the program settings. Thanks.

Best regards,

Chase