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Table 25 Parameter data for the RF synthesizer (EFC) measurement
Step
1
2
3
4
5
Agilent E5505A User's Guide
Parameters
Type and Range Tab
Measurement Type
•
Start Frequency
•
Stop Frequency
•
Minimum Number of Averages
FFT Quality
Sources Tab
Carrier Source
•
Frequency
•
Power
•
Carrier Source Output is
connected to:
Detector Input
•
Frequency
Reference Source
•
Frequency
•
Reference Source Power
VCO Tuning Parameters
•
Nominal Tune Constant
•
Tune Range ±
•
Center Voltage
•
Input Resistance
Cal Tab
•
Phase Detector Constant
•
VCO Tune Constant
•
Phase Lock Loop Suppression
•
If Limit is exceeded
Block Diagram Tab
•
Carrier Source
•
Downconverter
•
Reference Source
•
Timebase
•
Phase Detector
•
Test Set Tune Voltage
Destination
•
VCO Tune Mode
Test Set Tab
Input Attenuation
LNA Low Pass Filter
•
LNA Gain
•
DC Block
•
PLL Integrator Attenuation
Absolute Measurement Examples
Data
•
Absolute Phase Noise (using a phase locked loop)
•
10 Hz
•
4 E + 6 Hz
•
4
•
Fast
•
500 E + 6 Hz
•
10 dBm
•
Test Set
•
500 E +6 Hz
•
500 E +6 Hz (same as Carrier Source Frequency)
•
16 dBm
•
2.5 Hz/V
•
± 10 Volts
•
0 Volts
•
1 E +6 ohms
•
Measure Phase Detector Constant
•
Measure from expected VCO Tune Constant
•
Verify calculated phase locked loop suppression
•
Show Suppression Graph
•
Manual
•
None
•
Agilent 8663A
•
None
•
Automatic Detector Selection
•
Reference Source
•
EFC
•
0 dB
•
20 MHz (Auto checked)
•
Auto Gain (Minimum Auto Gain –14 dB)
•
Not checked
•
0 dBm
6
185
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