Connecting the PXIe-5665 to the PXIe-5673

You can use the PXIe-5665 with the PXIe-5673 vector signal generator to generate and analyze communications signals up to 3.6 GHz with the PXIe-5665 (3.6 GHz) and up to 14 GHz with the PXIe-5665 (14 GHz).

Complete the following steps, as applicable, to set up an internal or external Reference Clock with the PXIe-5673 and the PXIe-5665.

  1. Install an PXIe-5603/5605 RF signal downconverter module in an available PXI Express or hybrid slot that has at least one empty slot to the left and at least two empty slots to the right.
  2. Install an PXIe-5622 IF digitizer module immediately to the left of the PXIe-5603/5605.
  3. Install an PXIe-5653 RF analog signal generator immediately to the right of the PXIe-5603/5605.
  4. Install the PXI-5652 RF analog signal generator that shipped with your PXIe-5673 immediately to the left of the PXIe-5622.
  5. Install the PXIe-5611 I/Q modulator that shipped with your PXIe-5673 immediately to the left of the PXI-5652.
  6. Install the PXIe-5450 waveform generator that shipped with your PXIe-5673 immediately to the left of the PXIe-5611.
  7. Using a semi-rigid SMA-to-SMA cable (labeled A), connect CH 0+/I+ on the PXIe-5450 to I+ on the PXIe-5611.
  8. Using a semi-rigid SMA-to-SMA cable (labeled A), connect CH 0-/I- on the PXIe-5450 to I- on the PXIe-5611.
  9. Using a semi-rigid SMA-to-SMA cable (labeled A), connect CH 1+/Q+ on the PXIe-5450 to Q+ on the PXIe-5611.
  10. Using a semi-rigid SMA-to-SMA cable (labeled A), connect CH 1-/Q- on the PXIe-5450 to Q- on the PXIe-5611.
  11. Using a semi-rigid SMA-to-SMA coaxial cable (labeled B), connect RF OUT on the PXI-5652 to LO IN on the PXIe-5611.
  12. Using a semi-rigid SMA-to-SMA cable (labeled K), connect IF OUT on the PXIe-5603/5605 to IF IN on the PXIe-5622.
  13. Using a semi-rigid SMA-to-SMA cable (labeled J), connect LO1 OUT on the PXIe-5653 to LO1 IN on the PXIe-5603/5605.
  14. Using a semi-rigid SMA-to-SMA cable (labeled J), connect LO2 OUT on the PXIe-5653 to LO2 IN on the PXIe-5603/5605.
  15. Using a semi-rigid SMA-to-SMA cable (labeled J), connect LO3 OUT on the PXIe-5653 to LO3 IN on the PXIe-5603/5605.
  16. Using a flexible coaxial cable, connect REF OUT (100 MHz) on the PXIe-5653 to CLK IN on the PXIe-5622.
  17. Using a flexible coaxial cable, connect REF OUT (10 MHz) on the PXIe-5653 to CLK IN on the PXIe-5450.
  18. Using a flexible coaxial cable, connect REF IN/OUT on the PXI-5652 to CLK OUT on the PXIe-5450.
  19. If you want to use an external clock, use a flexible coaxial cable to connect the external clock of your choice to the REF IN connector on the PXIe-5653. Set the clock rate to the output frequency of the external clock source for the Reference Clock using the clock rate parameter of the niRFSA Configure Ref Clock VI or the refClockRate parameter of the niRFSA_ConfigureRefClock function.
  20. Set the PXIe-5673clock source parameter of the niRFSG Configure Ref Clock VI to ClkIn or set the clockSource parameter of the niRFSG_ConfigureRefClk function to ClkIn. Set the clock rate to 10 MHz for the Reference Clock using the clock rate parameter of the niRFSG Configure Ref Clock VI or the refClockRate parameter of the niRFSG_ConfigureRefClk function.
  21. Connect a 50 Ω termination to the following connectors:
    • LO OUT on the PXIe-5611
    • LO1 OUT on the PXIe-5603/5605
    • LO2 OUT on the PXIe-5603/5605
    • LO3 OUT on the PXIe-5603/5605

The following figure shows an interconnected PXIe-5665 (3.6 GHz) and PXIe-5673 using an internal clock.


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The following figure shows an interconnected PXIe-5665 (14 GHz) and PXIe-5673 using an internal clock.


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