Caution
Incorrect torque at SMA connections can degrade signal fidelity and
phase-locked loop (PLL) performance and may cause insertion loss. Use an
appropriate torque wrench or torque screwdriver and SMA driver bit to ensure
all SMA connections are properly torqued. SMA connectors for connections to
external equipment may require torque different from 1 N · m, depending on
the connector type, material, and manufacturer.
Interconnecting the Slave NI 5665 Modules
The NI 5665 MIMO test system includes the following cables to interconnect additional
modules:
•
Semi-rigid SMA-to-SMA cable (labeled M), (x3)
•
Short, semi-rigid SMA-to-SMA cable (labeled K)
•
Flexible SMA-to-SMA cable
Figure 4.
NI 5665 3.6 GHz VSA Slave Module Cable Configuration
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
ACCESS
ACTIVE
CLK IN
CLK OUT
PFI 1
ESD
SENSITIVE
TT L
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
ESD
SENSITIVE
ACCESS
ACTIVE
ALL PORTS
50
Ω
ACCESS
ACTIVE
CLK IN
CLK OUT
PFI 1
ESD
SENSITIVE
TT L
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
ESD
SENSITIVE
ACCESS
ACTIVE
ALL PORTS
50
Ω
K
K
K
K
J
J
J
J
J
J
M
M
M
M
M
M
NI PXIe-5603
Downconverter 20 Hz - 3.6 GHz
NI PXIe-5603
Downconverter 20 Hz - 3.6 GHz
2
1
3
1. Short, Semi-Rigid SMA-to-SMA Cable, Labeled K
2. Flexible SMA-to-SMA Cable
3. Medium, Semi-Rigid SMA-to-SMA Cables, Labeled M
1. Using the short, semi-rigid SMA-to-SMA cable (labeled K), connect the IF OUT
connector on the slave NI 5603 front panel to the IF IN connector on the slave NI 5622
front panel.
2. Using the flexible SMA-to-SMA cable, connect the CLK OUT connector from the
preceding NI 5622 front panel to the CLK IN connector on the next NI 5622 front panel.
This cable passes the 100 MHz Reference Clock from the preceding NI 5622 to the
CLK IN connector of the next NI 5622.
NI PXIe-5665 3.6 GHz Vector Signal Analyzer MIMO Platform Getting Started Guide
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© National Instruments
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5
Summary of Contents for PXIe-5603
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