Hi,
on my application output_A is used for high freq (>5G) and output_B is used for lower freq. On some units, sometimes, when I switch from high freq to low freq i.e. switching from a state of out_A active and out_B not active to the opposite state (out_A inactive and out_B active) , or vice versa, then I got a spur on about 400kHz offset (on many carriers) . the switching between states is done by writing the desired state to register 44. I'v found that always when activating both outputs then the spur appears . On this situation the way I'v found to cancel the spur is to deactivate both out_A and out_B and after a delay of >1 mSec to activate the desired output. Do you have an explanation to this? Do you have another solution without a delay?
Regards,
Yaacov.