Anritsu 682XXB User Manual

Page 29

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Table of Contents

2-1

INTRODUCTION . . . . . . . . . . . . . . . . . . . 2-3

2-2

682XXB/683XXB MAJOR SUBSYSTEMS . . . . . . 2-3

Digital Control. . . . . . . . . . . . . . . . . . 2-3
Front Panel . . . . . . . . . . . . . . . . . . . 2-4
Frequency Synthesis . . . . . . . . . . . . . . . 2-4
Analog Instruction . . . . . . . . . . . . . . . . 2-5
YIG Driver . . . . . . . . . . . . . . . . . . . 2-5
Function Generator . . . . . . . . . . . . . . . 2-5
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

Chapter 2
Functional Description

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