art Number: TRF372017
Hi all,
There is a problem that spurious occurs about the output of TRF372017 in customer's system.
If the output of the I / Q signal from the DAC3174 is modulated to the center frequency= 713.142857 MHz, strong spurious will occur around 715 MHz and around 722 MHz which seems to be from TRF372017.
I think spurious around 715 MHz is affected by 65.015873 MHz.
Please advise on how to find out the causes of these spurs and how to prevent them.
The PFD frequency of TRF372017 is REFIN / 4 and it is 16.25396825 MHz and the following constant of the filter for VCO is used.
Regards,
Toshi