About the "controls the LO monitor outputs" and the "LO output circuits" at the ADRF6755,
in the datasheet 37 page @ ADRF6755,
" If not used, these outputs should be tied to REGOUT."
and 29 page,
"Register CR27, Bit 2. Controls the LO monitor outputs, LOMON and /LOMON.
The default is 0 when the monitor outputs are powered down. "
If it does not used LO monitor outputs, only setting the power down bit 0 is imperfect ?
and need to be tied to REGOUT ?
Monitor power down is open-collector outputs?
If controlled the LO monitor outputs on/off, it is necessary the all parts in the recommended circuits ?
In the datasheet 39 page @ ADRF6755, LOMON to +3N_INT, L1, L3/R60, R44.
LOMON single-end output is available?