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NI PXI-5663 Calibration Procedure
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© National Instruments
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Phase Noise Verification
Use this procedure to verify the NI 5663 system. Phase noise is dominated by the NI PXI-5652;
refer to the NI PXI-5652 verification and adjustment tests if there are issues with the NI 5663
phase noise.
The frequencies and offsets used in this test were chosen to cover all the internal states used by
the NI PXI-5652.
Table 19 shows the test limits.
1.
Connect the PN source to the power splitter input through the N (m)-to-3.5 mm (f) adapter
and 3.5 mm-to-3.5 mm cable.
2.
Connect the power splitter reference output to power sensor A.
3.
Connect the other power splitter output to the NI 5601 RF IN connector through the 3.5 mm
(m)-to-3.5 mm (m) adapter.
Figure 8.
Phase Noise Equipment Setup
1
PN Source
2
Power Splitter
3
Power Sensor A
4
Power Meter
5
Power Meter Channel A
6
50
Ω
Terminator
1
ACCESS
ACTIVE
CLK IN
CLK OUT
PFI 1
ESD
SENSITIVE
TTL
6.3 Vp-p
MAX
2 Vp-p
NOM
+20 dBm MAX
50
Ω
50
Ω
50
Ω
NI PXIe-5622
16-Bit IF Digitizer
IF IN
0 dBm NOM
RF IN
IF OUT
LO IN
LO OUT
10 MHz – 6.6 GHz
ACCESS
ACTIVE
ALL PORTS
±5 VDC MAX
50
Ω
0 dBm NOM
+20 dBm MAX
+20 dBm MAX
+20 dBm MAX
[+30 dBm MAX
w/Attenuation]
RF Downconverter
NI PXIe-5601
5
3
4
6
2