SLOA313 May   2021 AFE7070 , AFE7071

 

  1.   Trademarks
  2. 1Introduction
  3. 2CF and SBS Characterization
    1. 2.1 Variation Over Frequency
    2. 2.2 Variation Over Power Supply
    3. 2.3 Variation Over LO Drive Level
    4. 2.4 Variation Over Temperature
    5. 2.5 Compensation Algorithm
    6. 2.6 Algorithm Calculations
    7. 2.7 Composite Results
    8. 2.8 Mitigate Frequency Variation With the NCO
    9. 2.9 Composite Results With the NCO
  4. 3Conclusion

Composite Results

Figure 2-11 and Figure 2-12 illustrate the composite results using the three calibration points and the algorithm adjustment for variation over frequency and temperature. Carrier feedthrough performance achieves better than –60 dBc and sideband suppression achieves better than –50 dBc across the frequency and temperature range.

GUID-20210428-CA0I-CMBD-KDKD-Q9R6PXDDWJ6G-low.pngFigure 2-11 CF vs Frequency Over Temperature
GUID-20210428-CA0I-GGKM-PV8X-SKHVK9FDXFJK-low.pngFigure 2-12 SBS vs Frequency Over Temperature