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Anritsu 682XXB User Manual

Page 6

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ALC/AM/Pulse Modulation . . . . . . . . . . . . 2-8
RF Deck . . . . . . . . . . . . . . . . . . . . . 2-8
Power Supply . . . . . . . . . . . . . . . . . . 2-8
Inputs/Outputs . . . . . . . . . . . . . . . . . 2-8
Motherboard/Interconnections . . . . . . . . . . 2-9

2-3

FREQUENCY SYNTHESIS . . . . . . . . . . . . . 2-9

Phase-Lock Loops . . . . . . . . . . . . . . . . 2-9
Overall Operation . . . . . . . . . . . . . . . 2-10
RF Outputs 0.01 to 65 GHz . . . . . . . . . . . 2-13
Frequency Modulation . . . . . . . . . . . . . 2-14
Phase Modulation (Option 6) . . . . . . . . . . 2-14
Analog Sweep Mode (683XXB only) . . . . . . . 2-14
Step Sweep Mode . . . . . . . . . . . . . . . . 2-15

2-4

ALC/AM/PULSE MODULATION . . . . . . . . . . 2-15

ALC Loop Operation . . . . . . . . . . . . . . 2-15
Pulse Generator Operation . . . . . . . . . . . 2-18

2-5

RF DECK ASSEMBLIES . . . . . . . . . . . . . . 2-19

RF Deck Configurations . . . . . . . . . . . . 2-20
YIG-tuned Oscillator . . . . . . . . . . . . . . 2-20
Power Level Control and Modulation . . . . . . 2-23
RF Signal Filtering . . . . . . . . . . . . . . . 2-23
0.01 to 2 GHz Down Converter . . . . . . . . . 2-24
0.5 to 2.2 GHz Digital Down Converter . . . . . 2-25
Switched Doubler Module . . . . . . . . . . . . 2-26
Source Quadrupler Module . . . . . . . . . . . 2-29
Power Level Detection/ALC Loop . . . . . . . . 2-30
Step Attenuator . . . . . . . . . . . . . . . . 2-31

Chapter 3 - Performance Verification

3-1

INTRODUCTION . . . . . . . . . . . . . . . . . . . 3-3

3-2

RECOMMENDED TEST EQUIPMENT . . . . . . . 3-3

3-3

TEST RECORDS . . . . . . . . . . . . . . . . . . . 3-3

3-4

CONNECTOR AND KEY LABEL NOTATION . . . 3-3

3-5

682XXB/683XXB POWER LEVELS . . . . . . . . . 3-6

3-6

INTERNAL TIME BASE AGING RATE TEST . . . 3-8

Test Setup . . . . . . . . . . . . . . . . . . . . 3-8
Test Procedure . . . . . . . . . . . . . . . . . . 3-9

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682XXB/683XXB MM

Table of Contents (Continued)

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