![background image](http://html2.mh-extra.com/html/national-instruments/pxie-5665/pxie-5665_calibration-manual_3612098029.webp)
PXIe-5665 Calibration Procedure
|
© National Instruments
|
29
Figure 10.
PXIe-5665 14 GHz VSA Frequency Response and Absolute Amplitude
Accuracy Verification (Frequencies >10 MHz) Equipment Setup
4.
Create a new session for the PXIe-5665.
5.
Configure the PXIe-5665 according to the following fixed property settings. These settings
remain unchanged during the test.
•
Acquisition Type: Spectrum
•
Averaging Mode: RMS Averaging
•
Number of Averages: 10
•
Digital IF Equalization Enabled: TRUE
•
Digitizer Dither Enabled: Enabled
•
Ref Clock Source: PXI_Clk
•
Channel Coupling: AC Coupled
•
Span: 100 kHz
•
Resolution Bandwidth: 10 kHz
6.
Configure the PXIe-5665 according to the following variable property settings:
•
Preamp Enabled: Disabled
•
Device Instantaneous Bandwidth: 300 kHz
•
(PXIe-5665 14 GHz VSA)
Preselector Enabled: Disabled
1
RF Source 2
2
Power Meter
3
SMA (m)-to-SMA (m) cable
4
Power Sensor A
5
Power Splitter
6
3.5 mm (m)-to-3.5 mm (m) Adaptor
7
20 dB Attenuator
OUT
NI PXIe-5653
Synthesizer
REF IN
10 MHz
5 V p-p MAX
REF OUT
10 MHz
1.5 V p-p MAX
REF OUT
100 MHz
1.5 V p-p MAX
LO3
800 MHz
LO2
4 GHz
LO1
3.2 GHz - 8.3 GHz
ESD
SENSITIVE
OUT
ALL PORTS
50
Ω
NI PXIe-5605
Downconverter 20 Hz - 14 GHz
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
IF OUT
+22 dBm MAX
0 V DC
LO1
LO2
LO3
IN
ESD
SENSITIVE
OUT
LO3
LO2
LO1
ALL PORTS
50
Ω
+15 dBm MAX
25 V DC MAX
+15 dBm MAX
0 V DC
ACCESS
ACTIVE
RF IN
0 V DC
+20 dBm MAX > 10 MHz
+10 dBm MAX < 10 MHz
K
K
J
J
J
J
J
J
1
4
2
3
7
6
5