Table of Contents
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6
Contents-2
E5500 Phase Noise Measurement System Version A.02.00
Making the Measurement
Defining the Measurement
Selecting a Reference Source
Selecting Loop Suppression Verification
Setup Considerations for the Agilent 8663A
10 MHz Measurement
Beginning the Measurement
5-38
Checking the Beatnote
Making the Measurement
5-44
5-46
Absolute Measurement Fundamentals
The Phase Lock Loop Technique
Understanding the Phase-Lock Loop Technique
The Phase Lock Loop Circuit
What Sets the Measurement Noise Floor?
The System Noise Floor
Selecting a Reference
6-9
Using a Similar Device
Tuning Requirements
Estimating the Tuning Constant
Tracking Frequency Drift
Evaluating Beatnote Drift
Changing the PTR
6-15
The Tuning Qualifications
Minimizing Injection Locking
Adding Isolation
6-17
Increasing the PLL Bandwidth
Inserting a Device
6-19
An Attenuator
6-19
An Amplifier
6-19
Evaluating Noise Above the Small Angle Line
Determining the Phase Lock Loop Bandwidth
5-23
5-28
5-31
5-31
5-32
5-34
5-38
5-39
5-48
5-50
5-51
6-2
6-2
6-6
6-6
6-7
6-9
6-10
6-10
6-12
6-13
6-13
6-15
6-17
6-17
6-21
Document Part No. E5500-90024
5-28
6-2
6-21
Ed. 1.0
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