LC_XO GPSDO User Manual
26 © 2012 Jackson Labs Technologies, Inc.
3.5 Performance
Some typical performance parameters for the LC_XO board are shown in the following figures.
Figure 3.13 shows the typical Allan Deviation performance of the LC_XO board after one week of
burn-in, locked to GPS and shielded from airflow. Corrections from the GPS receiver improve the
short term phase stability of the TCXO oscillator above 50-second averaging times.
Figure 3.13 Typical LC_XO Allan Deviation (TCXO version)
Figure 3.14 is a plot of typical LC_XO board phase noise performance while locked to GPS. The
noise floor can be seen to be below -155dBc.
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