Kindly let us know the RF Back off (RF Attenuation) used to measure LO Phase noise or else what is the power level of carrier.
AD9375
Recommended for New Designs
The AD9375 is a highly integrated, wideband radio frequency (RF) transceiver offering dual-channel transmitters (Tx) and receivers (Rx), integrated synthesizers...
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AD9375 on Analog.com
Kindly let us know the RF Back off (RF Attenuation) used to measure LO Phase noise or else what is the power level of carrier.
You can transmit one's at the TX tone input, with 3dB digital backoff, and then check the phase noise of the LO. You can consider 0 RF attenuation.