Verifying 100 MHz Reference Frequency Accuracy
This procedure verifies that the internal 100 MHz reference circuitry is adjusted for correct
frequency accuracy.
1.
Connect the PXIe-5654 REF OUT 2 100 MHz front panel connector to the signal source
analyzer RF input connector using the K(m)-to-K(m) cable as shown in the following
figure.
Figure 3. Reference Frequency Accuracy Verification (100 MHz) Equipment Setup
(Reference Connections Not Shown)
250 kHz–20 GHz Signal Generator
ACCESS
ACTIVE
REF IN
1–20 MHz
±10 dBm NOM
17 dBm MAX
PULSE
IN
–0.5V MIN
+5.5V MAX
FM IN
±1 VDC NOM
±2 VDC MAX
AM IN
±1 VDC NOM
±2 VDC MAX
ALC IN
±15 VDC MAX
RF OUT
250 kHz –
20 GHz
REF OUT
10 MHz
5 dBm ±2 dBm NOM
REF OUT 2
100 MHz
5 dBm ±2 dBm NOM
TRIG
IN/OUT
3.3V CMOS
IN/OUT
–0.5V MIN IN
5.5V MAX IN
ESD
SENSITIVE
ALL PORTS
50
Ω
1
2
3
1. PXIe-5654 RF Analog Signal Generator
2. Signal Source Analyzer
3. K(m)-to-K(m) Cable
2.
Create a new device session for the PXIe-5654.
3.
Configure the PXIe-5654 using the following settings:
•
Frequency: 4 GHz
•
Power Level: 0 dBm
•
Reference Clock Export Output Terminal: RefOut2
12
|
ni.com
|
PXIe-5654 Calibration Procedure
