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54620A
HP 54620A User Manual
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Figure
50 shows th
e same waveform,
thi
s ti
me captured at a m
uch faster
sweep speed and corresponding sampling rate. Notice that both the main
and
delayed sweeps show the waveform as a cl
early
de
fined series of pulses and
that the disjoint waveform display has disappeared.
Wavef
orm Dis
play wit
h Suff
icient
Sampling
Rate
Figu
re 50
Ens
uring Ac
curate Meas
urements
Glitc
h De
tec
tio
n
147
147
149
Table of Contents
Table of Contents
8
Measurements
3
Ensuring Accurate
5
Testing, Adjusting, and
6
Replaceable Parts
16
1 Getting Started
18
Preparing the Analyzer
22
To Check Package Contents
23
To Check Optional Accessories
25
Table 1. Power Cords
27
To Power-On the Logic Analyzer
28
To Adjust the Handle
29
To Adjust Display Brightness
30
Using Color
31
To Select the Color Palettes and Observe Colors
32
Table 2. Color Palettes and Mapping of Colors to Display Components
33
To Assign Colors to Channels
34
To Print in Color
35
Making Measurements
36
Learn the Front Panel
36
To Probe a Circuit
43
To Set up an Acquisition Using Autoscale
45
To Start and Stop an Acquisition
47
To Define a Simple Edge Trigger
48
To Adjust the Time Base (Sweep Speed)
49
To Turn Channels on and off
50
To Rearrange the Channels
51
2 Making Analyzer Measurements
52
Setting Logic Levels
54
To Change the Logic Threshold for Input Signals
55
Table 3 Threshold Voltage Settings
55
Controlling Data Acquisition
56
To Take a Single Acquisition
57
To Use Auto Glitch Detect
58
To Accumulate the Results of Every Acquisition
59
To Erase the Waveform Display
59
Using Labels
60
To Turn the Label Display on or off
60
To Assign a Label to a Channel
61
To Define a New Label
63
To Initialize the Label List
65
Triggering the Analyzer
66
Trigger Types
66
To Define the Trigger Mode
71
To Define an Edge Trigger
73
To Define a Pattern Trigger
74
To Define an Advanced Trigger
75
Table 4 Trigger Operators and Sources
76
Examining the Captured Data
81
Viewing Acquired Data with Delayed Sweep
81
To Show both Main and Delayed Sweep Displays
83
To Change the Time Reference Position
84
To Pan the Display
87
To Modify the Graticule
88
To Print the Display
89
Measuring Waveform Data
90
Ways to Measure Data
90
To Use the Cursors
95
Table 5. Readout Settings
96
To Measure Waveform Parameters on a Single Channel
97
To Measure Channel-To-Channel Delay
99
To Measure Setup Time
101
To Measure Hold Time
103
Using the Analyzer with Other Instruments
105
Extending Trigger Capabilities
105
To Use the External Trigger Input
109
To Use the Trigger Output
111
Saving and Recalling the Configuration
112
Using Memories to Save and Recall Configurations
112
To Save a Trace Waveform
115
To Recall a Trace Waveform
116
To Clear a Previously Saved Trace
117
To Save the Instrument Setup
118
To Recall the Instrument Setup
119
To Reset the Instrument Setup
120
Table 6. HP 54620A/C Factory-Preset Default Configuration Settings
120
3 Solving Problems
122
If There Is no Trace Display
124
If the Trace Display Is Unusual or Unexpected
125
If You Can't See a Channel
126
4 Ensuring Accurate Measurements Time Base and Acquisition
130
Table 7. Sweep Speed and Sampling Interval
131
Probing the Circuit under Test
140
Glitch Detection
144
5 Testing, Adjusting, and Troubleshooting the Analyzer
150
Testing the Analyzer
152
To Perform Self-Tests
153
To Test the Keyboard
154
To Test the Display
155
To Test the Acquisition System
155
Building Test Accessories
156
To Make the Test Connectors
157
Table 8. Materials Required (Making Test Connectors)
157
To Make the Dummy Load
159
Adjusting the Logic Analyzer
160
To Adjust the Power Supply
161
Table 9. Equipment Required (Adjusting Power Supply)
161
To Adjust the Display (HP 54620A Only)
163
Table 10. Equipment Required (Adjusting Display)
163
Troubleshooting the Logic Analyzer
165
Table 11. Equipment Required (Troubleshooting Logic Analyzer)
165
To Troubleshoot the Logic Analyzer
166
Table 12 Display Signals
167
To Check the LVPS
169
Testing Threshold Accuracy
170
Table 13. Equipment Required (Testing Threshold Accuracy)
170
Step 1. to Set up the Equipment
171
Step 2. to Connect the Logic Analyzer
172
Step 3. to Test the Thresholds
173
Table 14 Threshold Test Settings
173
Testing Time Interval Accuracy
174
Table 15. Equipment Required (Testing Time Interval Accuracy)
174
Step 1. to Connect the Logic Analyzer
175
Step 2. to Set up the Equipment
176
Step 3. to Set up the Logic Analyzer
177
Step 4. to Make the Measurement
178
6 Replaceable Parts
180
Removing and Replacing Assemblies
182
To Remove the Cabinet
183
To Remove the Fan
184
To Remove the Front Panel
185
To Remove the Display
186
To Remove the System Board
187
To Remove the Power Supply
188
To Remove the Keyboard
189
To Remove the Handle
190
Replaceable Parts
191
To Order a Replacement Part
192
Table 16 HP 54620A/C Replaceable Parts
194
7 Performance Characteristics
196
Table 17 Input Channels
198
Table 18 Horizontal System
199
Table 19 Acquisition System
200
Table 20 Trigger System
201
Table 21 Display System
203
Table 22 Measurement Functions
203
Table 23 Setup Functions
204
Table 24 Power Requirements
204
Table 25 General Characteristics for HP 54620A Only
205
Table 26 General Characteristics for HP 54620A and HP 54620C
206
Table 27 General Characteristics for HP 54620C Only
207
Messages
210
Glossary
218
Index
226
Declaration of Conformity
238
HP 54620 Documentation
240
Publication Number
243
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HP 54620A Specifications
General
Brand
HP
Model
54620A
Category
Measuring Instruments
Language
English
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