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CSA7404
Tektronix CSA7404 User Manual
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Acquiring
W
avef
orms
3-
5
0
CSA7000
S
erie
s,
TDS7000
Series,
&
TDS6000
S
eries
Instruments
User
Manua
l
Fast
Acquisition
display
Normal
DSO
display
Figure
3
-
14:
Normal
DSO
and
Fast
Acquisi
t
ion
displays
Use
the
proce
dure
that
follows
to
set
up
F
ast
Acquisitions
mode.
T
o
T
urn
Fast
Acquisitions
On
and
Of
f
127
129
Table of Contents
Table of Contents
5
List of Tables
15
General Safety Summary
17
About this Manual
19
Preface
19
Related Manuals and Online Documents
20
Contacting Tektronix
21
Models
23
Product Description
23
Key Features
24
Product Software
25
Software Upgrade
26
Installation
27
Unpacking
28
Checking the Environment Requirements
29
Connecting Peripherals
29
Figure 1- 1: Locations of Peripheral Connectors on Rear Panel
30
Powering on the Instrument
31
Table 1- 1: Additional Accessory Connection Information
31
Table 1- 2: Line Fuses
31
Figure 1- 2: Powering on the Instrument
32
Shutting down the Instrument
32
Backing up User Files
33
Creating an Emergency Startup Disk
33
Installing Software
34
Enabling Your LAN and Connecting to a Network
37
Figure 1- 3: Enabling Your LAN and Connecting to a Network
37
Figure 1- 4: Setting up a Dual Display
39
Setting up a Dual Display
39
Figure 1- 5: Drag Area for Windows Task Bar
41
Figure 1- 6: Moving Windows Desktop Icons to the External Monitor
41
Assemble Equipment
43
Incoming Inspection
43
Self Tests
44
Functional Tests
45
Check Vertical Operation
46
Figure 1- -7: Universal Test Hookup for Functional Tests - - CH
47
Figure 1- 8: Channel Button Location
48
Table 1- 3: Vertical Settings
48
Check Horizontal Operation
50
Figure 1- 9: Setup for Time Base Test
50
Check Trigger Operation
52
Figure 1- 10: Setup for Trigger Test
53
Check File System
54
Figure 1- 11: Setup for the File System Test
55
Perform the Extended Diagnostics
57
Accessories & Options
59
Options
59
Table 1- 4: Options
59
Accessories 1
60
Accessories
61
Table 1- 5: Standard Accessories
61
Table 1- 6: Optional Accessories
63
Operational Maps
67
Documentation Map
68
Functional Model Map
70
System Overview Maps
70
Process Overview Map
72
User Interface Map - - Complete Control and Display
73
Front-Panel Map - - Quick Access to most Often Used Features
74
Display Map - - Single Graticule
75
Front Panel I/O Map
76
Rear Panel I/O Map
77
Overview
79
Acquiring Waveforms
85
Signal Connection and Conditioning
86
Figure 3- 1: Input and Acquisition Systems and Controls
87
Connecting and Conditioning Your Signals
88
To Set up Signal Input
92
To Autoset the Instrument
95
To Reset the Instrument
96
To Get more Help
97
Input Conditioning Background
97
Figure 3- -2: Setting Vertical Range and Position of Input
100
Figure 3- 3: Varying Offset Moves the Vertical Acquisition Window on the Waveform
101
Figure 3- 4: Horizontal Acquisition Window Definition
102
Figure 3- 5: Common Trigger, Record Length, and Acquisition Rate for All Channels
104
Using the Acquisition Controls
106
Table 3- 1: Additional Resolution Bits
107
Figure 3- 6: Roll Mode
110
Figure 3- 7: Aliasing
111
To Set Acquisition Modes
112
To Start and Stop Acquisition 3
115
To Set Roll Mode
116
Setting Acquisition Controls
104
Acquisition Control Background
117
Acquisition Hardware
118
Sampling Process
118
Figure 3- 8: Digitizer Configuration
118
Figure 3- 9: Digital Acquisition - Sampling and Digitizing
118
Acquisition Modes
119
Waveform Record
119
Real-Time Sampling
120
Figure 3- 10: the Waveform Record and Its Defining Parameters
120
Figure 3- 11: Real-Time Sampling
120
Equivalent-Time Sampling 3
121
Equivalent-Time Sampling
122
Table 3- 2: Sampling Mode Selection
122
Interpolation
123
Figure 3- 12: Equivalent-Time Sampling
123
Interleaving
124
Table 3- 3: How Interleaving Affects Sample Rate
124
Using Fast Acquisition Mode
125
Using Fast Acquisitions
126
Figure 3- -13: Normal DSO Acquisition and Display Mode Versus
127
Figure 3- -14: Normal DSO and Fast Acquisition Displays 3
128
To Turn Fast Acquisitions on and off 3
129
To Set Display Format
132
Table 3- 4: XY and XYZ Format Assignments
133
Using Fastframe
134
Using Fastframe Acquisitions
135
To Set Fastframe Mode
136
Time Stamping Frames
138
Figure 3- -17: Fastframe Time Stamp 3
140
O/E Converter
141
Attenuating Optical Signals
142
Front Panel Connectors
142
Optical Input Connector
142
Output Connectors
142
O/E Electrical Out-To-Ch1 Input Adapter 3
143
O/E-To-SMA Adapter
144
Cleaning Optical Connectors
144
Compensation
145
Wavelength, Filter, and Bandwidth Selection
145
Optical Dark Compensation 3
145
Optical Bandwidth
146
Bandwidth for Unfiltered Settings
148
Bandwidth for Reference Receiver Settings
148
Triggering
149
Triggering Concepts
150
The Trigger Event
151
Trigger Sources
151
Trigger Types
151
Trigger Modes
152
Trigger Holdoff
153
Trigger Coupling
154
Horizontal Position
155
Slope and Level
155
Delayed Trigger System
156
Triggering from the Front Panel
156
Access Procedures
156
To Check Trigger Status
160
Additional Trigger Parameters
161
Advanced Triggering
166
Figure 3- -25: Example Advanced Trigger Readout 3
167
Table 3- 5: Pattern and State Logic
169
Figure 3- -26: Violation Zones for Setup/Hold Triggering 3
171
To Trigger on a Glitch
172
To Trigger on a Runt Pulse
174
Trigger Based on Pulse Width
177
To Trigger Based on Transition Time
180
Trigger Based on Pulse Timeout 3
182
Trigger on a Pattern 3
183
Trigger on a Pattern
186
To Trigger on a State
187
To Trigger on Setup/Hold Time Violations
188
Sequential Triggering
191
Using Sequential Triggering
192
Figure 3- -28: Triggering with Horizontal Delay off 3
193
Figure 3- -29: Triggering with Horizontal Delay on 3
194
Figure 3- -30: Trigger and Horizontal Delay Summary 3
195
To Trigger on a Sequence
196
Comm Triggering
200
Serial Pattern Triggering
200
Displaying Waveforms
201
Using the Waveform Display
202
Using the Display
203
Table 3- 6: Defining and Displaying Waveforms
204
Table 3- 7: Operations Performed Based on the Waveform Type
204
Figure 3- -32: Horizontal Position Includes Time to Horizontal Reference 3
206
To Display Waveforms in the Main Graticule 3
207
Setting Multiview Zoom Controls
209
Using with Waveforms
210
To Zoom Waveforms
211
Customizing the Display
216
Table 3- 8: Customizable Display Elements
216
Set Display Styles
219
Customize Graticule and Waveforms 3
222
Measuring Waveforms
225
Taking Automatic Measurements
226
Figure 3- -34: Annotated Display 3
227
Using Automatic Measurements
228
Figure 3- -35: High/Low Tracking Methods 3
229
Figure 3- -36: Reference-Level Calculation Methods 3
230
To Take Automatic Measurements 3
231
To Localize a Measurement
237
Taking Cursor Measurements
238
Table 3- 9: Cursor Functions (Types)
239
Using Cursors
240
Figure 3- -38: Components Determining Time Cursor Readout Values 3
242
To Set the Cursor Sources
243
Table 3- 10: Cursor Units
243
Taking Histograms
246
Using Histograms
247
To Start and Reset Histogram Counting
247
Histogram Measurements
249
Optimizing Measurement Accuracy
249
To Compensate the Instrument
250
To Connect the Probe Calibration Fixture
252
To Calibrate Probes
255
To Compensate Passive Probes
259
To Deskew Channels
259
Serial Mask Testing
262
Creating and Using Math Waveforms
263
Defining Math Waveforms
264
Using Math
266
Table 3- 11: Math Expressions and the Math Waveforms Produced
266
Figure 3- -43: Derivative Math Waveform 3
269
Figure 3- -44: Peak-Peak Amplitude Measurement of a Derivative Waveform 3
270
To Define a Math Waveform 3
272
Operations on Math Waveforms
275
Using Math Waveforms
275
To Use Math Waveforms
277
Defining Spectral Math Waveforms
280
Using Spectral Math Controls
281
Table 3- 12: Spectral Analyzer Controls
281
Figure 3- -45: Duration and Resolution Control Effects 3
283
Figure 3- -46: Definition of Gate Parameters 3
284
Figure 3- -47: Effects of Frequency Domain Control Adjustments 3
287
Figure 3- -48: Effects of Adjusting the Reference Level 3
289
Figure 3- -50: Example of the Effects of Setting the Phase Suppression Threshold 3
291
Figure 3- -51: Windowing the Time Domain Record 3
293
Table 3- 13: Window Characteristics
294
Figure 3- -52: Example of Scallop Loss for a Hanning Window Without Zero Fill 3
295
Figure 3- -53: Time and Frequency Graphs for the Gaussian Window 3
297
Figure 3- -54: Time and Frequency Domain Graphs for the Rectangular Window 3
298
Figure 3- -55: Time and Frequency Graphs of the Hamming Window 3
299
Figure 3- -56: Time and Frequency Graphs for the Hanning Window 3
300
Figure 3- -57: Time and Frequency Graphs for the Kaiser-Bessel Window 3
301
Figure 3- -58: Time and Frequency Graphs of the Blackman-Harris Window 3
302
Figure 3- -59: Time and Frequency Domain Graphs for the Flattop2 Window 3
303
Figure 3- -60: Tek Exponential Window in the Time and the Frequency Domains 3
304
Recognizing Aliasing
305
Figure 3- -61: How Aliased Frequencies Appear in a Spectral Waveform 3
306
To Select a Predefined Spectral Math Waveform 3
308
To Define a Spectral Math Waveform 3
309
To Define a Spectral Math Waveform
312
Spectral Math Example
317
Data Input/Output
323
Saving and Recalling a Setup
323
Figure 3- -62: Auto-Increment File Name Feature 3
325
To Save Your Setup
326
Using Auto-Increment File Name 3
328
To Recall Your Setup
329
Saving and Recalling Waveforms
331
To Save Your Waveform
332
To Recall Your Waveform
335
To Clear References
338
Exporting and Copying Waveforms
340
To Export Your Waveform
341
To Use an Exported Waveform 3
349
To Copy Your Waveform
351
Printing Waveforms
355
To Print from Front Panel
355
To Print from Menu Bar
355
To Set up the Page
356
Figure 3- -64: Hardcopy Formats 3
356
To Preview the Page
357
To Print Using Print Screen 3
358
To Date/Time Stamp Hardcopies
359
Remote Communication
360
Accessing Online Help
361
How to Use Online Help
362
Appendix A: Specifications
367
Product and Feature Description
368
Table A- 1: Instrument Models
368
Display Features
369
Measurement Features
370
Trigger Features
370
Convenience Features
371
Specification Tables
372
Table A- 2: Channel Input and Vertical Specifications
372
Table A- 3: Horizontal and Acquisition System Specifications
384
Table A- 4: Trigger Specifications
390
Table A- 5: Display Specifications
396
Table A- 6: Input/Output Port Specifications
397
Table A- -7: O/E Converter (CSA7000 Series Only
400
Table A- 8: Data Storage Specifications
402
Table A- 9: Power Source Specifications
403
Appendix B: Automatic Measurements Supported
409
Levels Used in Taking Amplitude, Timing, and Area Measurements
413
Levels Used in Taking Eye Measurements (Optional on TDS7000 Series & TDS6000 Series)
414
DCD Values
416
Measurements Annotations
417
Appendix C: Menu Bar Commands
423
File Commands
423
Edit Commands
425
Vertical Commands
426
Horizontal and Acquisition Commands
427
Trigger Commands
429
Display Commands
431
Cursors Commands
433
Measure Commands
433
Masks Commands
435
Math Commands
436
Utilities Commands
437
Help Commands
438
Appendix D: Cleaning
439
Exterior Cleaning
439
Flat Panel Display Cleaning
440
Glossary
441
Channels
443
Fast Acquisition Mode
445
4
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Tektronix CSA7404 Specifications
General
Brand
Tektronix
Model
CSA7404
Category
Measuring Instruments
Language
English
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