Tektronix DSA70000D Series

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Oscilloscope Reference Measurement algorithms

Rise Time

RMS

Amplitude (voltage) measurement. The true Root Mean Square voltage.

If Start = End then RMS = the (interpolated) value at Waveform[Start].

Otherwise,

For details of the integration algorithm, see below.

Integration Algorithm

The integration algorithm used by the instrument is as follows:

W(t) is the sampled waveform

Ŵ(t) is the continuous function obtained by linear interpolation of W(t)

DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series 737

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Default Chapter5
- Table of Contents5
About Tektronix Oscilloscopes23
- Introduction23
- Product Description23
- Product Software27
Controls and Connectors77
- Front Panel Overview77
- Touch Screen80
- Wave Inspector Controls81
- Vertical Controls82
- Horizontal Controls83
- Trigger Controls83
- Run Controls86
- General Purpose Controls87
- Multiview Zoom Controls88
- Rear and Side Panel Connectors88
Cursor Setups93
- Cursor Setup Control Window (YT Display Format)93
- Track Mode94
- Cursor Type Control Window95
- Cursor Sources (YT Display)96
- Cursor Style97
- Cursor Position Control Window99
- Horizontal Bar Cursors100
- Vertical Bar Cursors101
- Waveform Cursors102
- Screen Cursors103
- Cursor Track Mode104
- Cursor Measurements104
- Cursor Setup Control Window (XY Display Format)107
Digital Setups109
- Digital Setup Control Window109
- Setting up Digital Signal Inputs110
- Digital Channel Threshold and Position111
  - Set Digital Channel Threshold111
  - Set Digital Channel Position112
- Turn on or off the Digital Channels D15-D8 and D7-D0113
- Set the Display Size of Logic Channels114
- Set the Global Threshold for Digital Channels115
- Set up Digital Channels116
Bus Setups117
- Bus Setup Control Window (Conﬁg Tab)117
- Bus Selection List118
- Bus Search Selection List120
- Display or Clear a Bus121
- Label a Bus121
- Change the Bus Position123
- Set up an I2C Serial Bus123
- Set up an SPI Serial Bus125
- Set up an RS-232 Serial Bus126
- Set up a USB Serial Bus128
- Set up a MIPI DSI-1 Serial Bus129
- Set up a MIPI CSI-2 Serial Bus131
- Set up an 8B10B Serial Bus133
- Set up a Custom Serial Bus134
- Set up a Pcie Serial Bus136
- Set up a CAN Serial Bus137
- Set up a LIN Serial Bus139
- Set up a FLEXRAY Serial Bus140
- Set up a MIL-1553 Serial Bus142
- Set up an Ethernet Serial Bus143
- Select the Serial Bus Channel Type145
- Select the Serial Bus Channel Input146
- Select the USB Serial Bus Speed147
- Select the USB Bus Signal Type148
- Select the Data Rate149
- Select the Serial Bus Input150
- Select the USB Bus Threshold151
- Select the Serial Bus Channel Threshold152
- Select the SPI Bus Channel Polarity153
- Select the RS-232 Bus Channel Polarity154
- Select the RS-232 Bus Data Bits155
- Select the RS-232 Bus Parity156
- Select the RS-232 Bus Bit Rate157
- Select the SPI Bus Framing158
- Set the SPI Bus Idle Time159
- Set the SPI Bus Word Size160
- Select the SPI Bus Bit Order161
- Set up a Parallel Bus162
- Set up a Clocked Parallel Bus163
- Add Sources to a Parallel Bus164
- Set up Bus Channel Thresholds165
- Change the Bit Order of a Channel in a Parallel Bus167
- Remove a Channel from a Parallel Bus168
- Select the Bus Clock Source Channel169
- Select the Bus Clock Channel Polarity170
- Bus Setup Control Window (Display Tab)170
- Select the Bus Display Components173
- Select the Bus Decode Method173
- View Bus Packet175
- Select the Bus Symbol Table175
- Symbol File Format176
- Opening a Bus Symbol Table File178
Magnivu Setup181
- Using Magnivu181
Display Setups185
- Display Control Window (Appearance Tab)185
- Display Control Window (Screen Text Tab)186
- Text Properties Control Window188
- Display Control Window (Objects Tab)189
- Display Control Window (Colors Tab)190
- Display Persistence191
- Select the Display Format192
- Set the Waveform Intensity194
- Select the Waveform Interpolation194
- Select the Graticule Style196
- Deﬁne the Color Palette197
- Remote Operation198
  - Remote Desktop Connection198
Horizontal and Acquisition Setups199
- Horizontal/Acquisition Control Window (Horizontal Tab)199
- Set Record Length Limit200
- Horizontal Digital Control Window201
- Horizontal Position/Scale Control Window202
- Horizontal Position/Scale Control Window: Delay Mode on203
- Horizontal/Acquisition Control Window (Acquisition Tab)203
- Autoset205
- Set Autoset Preferences207
- Undo an Autoset207
- Enable Fast Acquisitions208
- Start and Stop Waveform Acquisitions209
- Enable Roll Mode210
- Select a Sampling Mode211
- Set the Resolution215
- Select the Acquisition Mode215
- Fastframe Control Windows217
- Set up Zoom219
Errordetectorsetups221
- Use the Serial Error Detector221
- Set up the Serial Error Detector222
- Set Error Detector Advanced Settings225
- Specify the Error Detector Test Pattern226
- Set the Error Detector Stop Condition227
- Error Detector Overview227
Mask Testing Setups231
- Mask Testing Control Window (Masks Tab)231
- Select a Mask Type231
- Mask Types and Standards233
- Use Mask Display Controls235
Math Setups263
- Set up Math Averaging263
- Set Math Variables264
- Use Custom Analysis Functions265
- Custom Analysis Functions266
- MATLAB Custom Analysis Interface267
Measurement Setups289
- Measurement Snapshot Control Window289
- Measurement Setup Control Window (Amplitude Tab)290
- Measurement Readouts291
- Select an Amplitude Measurement292
- Measurement Setup Control Window (Time Tab)295
- Select a Time Measurement296
- Measurement Setup Control Window: (Communications Tab)299
- Select a Communications Measurement300
- Measurement Setup Control Window (more Tab)304
- Select a Miscellaneous Measurement305
- Set up Measurement Statistics307
- Set up Reference Levels308
- Set up Measurement Gating311
- Set up Histogram Measurements312
- Set up Histograms314
Analyzing Waveforms321
- Control Marks321
- Select a Search Type322
- Conﬁgure a Search326
- Copy Search Settings326
- Set Advanced DDR Search Settings327
- Check Search Results331
- View the Search Counts Results332
- View Search Marks332
- Set the Search Mode333
- Use Search and Mark Controls334
- Set up a Visual Search337
- Set up 8B10B Search Parameters339
- Set up RS-232 Search Parameters342
- Set up SPI Search Parameters345
- Set up I2C Search Parameters347
- Set up USB Search Parameters352
- Set up MIPI Search Parameters358
- Set up Pcie Search Parameters365
- Set up CAN Search Parameters367
- Set up LIN Search Parameters371
- Set up FLEXRAY Search Parameters375
- Set up MIL-1553 Search Parameters379
- Set up Ethernet Search Parameters382
- Set up DDR Search Parameters388
- Set up Custom Search Parameters390
- Set up Parallel Search Parameters391
- View the Protocol Decode Event Table392
- Copy the Event Table396
- Select Columns to Copy or Export397
- Save the Event Table398
Myscopesetups401
- Set up a Myscope Control Window401
- Use a Myscope Control Window402
- Save a Myscope File as a Dialog Box404
- Open or Edit a Myscope Dialog Box405
Trigger Setups407
- Set up Trigger Controls (a Event Tab)407
- Select the Trigger Type408
- Set the Trigger Mode Controls411
- Set up the Trigger Holdoff412
- Set to 50413
Vertical Setups503
- Set up Vertical Controls503
- Set up Input Channels503
- Zoom Control Window505
- Waveform Display Control Window507
- Set the Position/Offset507
- Waveform Label Control Window509
- Vertical Offset Control Window509
- Termination Controls511
- Coupling Controls514
- Deskew/Attenuation Control Window515
- Bandwidth Control Window516
- Enhanced Bandwidth516
- Vertical Setup Control Window: aux Tab519
- Probe Setup Control Window520
- Probe Setup Control Window: Setup Type522
- Probe Setup Control Window: D15-D0 Tab523
- Probe Setup Control Window: Probe Compensation524
- Probe Setup Control Window: Probe Tip Selection526
- Probe Setup Control Window: Probe Deskew527
- Probe Setup Control Window: Probe Attenuation528
- Probe Controls Window529
- Probe Properties530
- Probe Setup Control Window: Probe Status532
  - Copy Setup: Images535
  - Copy Setup: Waveforms536
  - Copy Setup: Measurements538
  - Copying the Screen for Use in Other Applications540
  - Copying Measurements for Use in Other Applications540
  - Page Setup Dialog Box541
  - Print Preview Dialog Box542
  - Print Dialog Box542
  - Printing the Screen to a Printer542
  - Reference Waveform Controls545
  - Recall Dialog Box: Waveform546
  - Recall Dialog Box: Instrument Setups547
  - Delete Setups and Reference Waveforms549
  - Set up Action on Event550
  - Set up Save on Event550
  - Print Setups552
  - Save as Dialog Box: Histogram552
  - Save as Dialog Box: Instrument Setup553
  - Save as Dialog Box: Measurement554
  - Save as Dialog Box: Screen Capture556
  - Save as Dialog Box: User Mask558
  - Save as Dialog Box: Waveform559
  - Save as Dialog Box: Digitals561
  - Save as Dialog Box: Timestamp562
Copyingandprinting535
Utilities565
- Tek Secure Erase565
- Set Time and Date565
- GPIB Conﬁguration Control Window566
- LAN Server Status Control Window568
- External Signals Control Window568
- Touch Screen571
- Instrument Calibration Control Window571
- Instrument Diagnostics Control Window572
- E-Mail on Event Control Window574
- Multipurpose Knobs577
- Install the Floating License586
- Install the Fixed License588
- Return the Floating License for the Installed Option(S)589
How to593
- Compensate the Signal Path593
- Compensate Active Probes593
- Compensate Passive Probes594
- Low Frequency Compensate a Probe595
- Deskew596
- Setting up Analog Channels596
- Setting Acquisition Modes597
- Use Fast Acquisitions598
- View the Analog Characteristics of a Digital Signal601
- Set up Digital Channels601
- Set up a Bus602
- Set up a Parallel Bus602
- Set up an SPI Serial Bus604
- Set up an I2C Serial Bus604
- Set up an RS-232 Serial Bus605
- Set up a USB Serial Bus606
- Set up a MIPI DSI-1 Serial Bus606
- Set up a MIPI CSI-2 Serial Bus607
- Set up an 8B10B Serial Bus607
- Set up a Custom Serial Bus608
- Set up a Pcie Serial Bus608
- Set up a CAN Serial Bus609
- Set up a LIN Serial Bus609
- Set up a FLEXRAY Serial Bus610
- Set up a MIL-1553 Serial Bus610
- Set up an Ethernet Serial Bus611
- Conﬁguring the Bus Display612
- Tracking down I2C Serial Bus Anomalies612
- Troubleshooting Circuits Using a Parallel Bus614
- Troubleshooting an SPI Serial Bus617
- Creating Myscope Control Windows620
- Editing Myscope Control Windows620
- Select Cursor Sources622
- Taking Cursor Measurements623
- Taking Automatic Measurements624
- Take Automatic Measurements626
- Localize a Measurement627
- Save Measurements628
- Using Math Waveforms628
- Create a Math Waveform Using Predeﬁned Expressions632
- Create a Math Waveform with the Equation Editor633
- Create a Math Waveform634
- Set up Mask Testing635
- Create a New User Mask638
- Create a User Mask from a Deﬁned Mask640
- Edit a User Deﬁned Mask640
- Save a User Mask to Disk641
- Recall a User Mask from Disk642
- Create a User Mask with Mask Testing642
- Use Mask Testing643
- Send an E-Mail on Events643
- Create a Spectral Waveform644
- Deﬁne a Spectral Math Waveform645
- Use a Predeﬁned Spectral Math Waveform649
- Create a Reference Waveform650
- Save Reference Waveforms Using Auto-Increment File Name651
- Recall a Reference Waveform652
- Save a Waveform652
- Copy Waveform Data653
- Save a Screen Capture655
- Set the Horizontal Delay655
- Compare Data Using Horizontal Delay656
- Set up Roll Mode656
- Using Roll Mode657
- Checking Trigger Status657
- Set up Triggering from the Front Panel659
- Set up Triggering from the Trigger Setup Window661
- Trigger on a Sequence663
- Trigger on a Event Only664
- Trigger on an Event after a Speciﬁed Delay664
- Trigger on a B Event665
- Trigger on a Glitch666
- Trigger on a Runt Pulse666
- Trigger on a Pulse Width668
- Trigger on a Pulse Timeout669
- Trigger on a Pattern670
- Trigger on a Logic State672
- Trigger on the Transition Time673
- Trigger on Setup/Hold Time Violations674
- Trigger on Window Threshold Violations677
- Trigger on a Video Signal678
- Trigger on a Communication Signal679
- Trigger on a Bus680
- Mark All Trigger Events680
- Set up a Histogram683
- Take Automated Measurements on Histogram Data683
- Start or Reset Histogram Counting684
- Display a Waveform684
- Set up XY Display Format685
- Use Multiview Zoom with Waveforms686
- Choose a Color Palette687
- Customize the Display Palette688
- Save the Instrument Setups690
- Recall an Instrument Setup690
- Delete Instrument Setups691
- GPIB Programmer Online Help692
- Oscilloscope Applications Software692
- Add a Software Application to the Instrument692
  - Set up a Dual Display692
  - Enable a Network Connection694
  - Exit the Instrument Application694
  - Minimize the Instrument Application694
  - Shut down the Instrument695
  - Adjust the Display Contrast695
Oscilloscope Reference697
- Functional Model697
- Process Overview698
  - Signal Connection699
  - Probes and Signal Connection699
  - Input Conditioning700
  - Bandwidth Enhancement701
  - Coupling702
  - Scaling and Positioning703
  - Vertical Acquisition Window Considerations703
  - Horizontal Acquisition Window Considerations706
  - Horizontal Acquisition Window Interrelated Parameters706
  - Independent Versus Shared Window707
  - Incompatible Acquisition Features708
  - Autoset Considerations709
  - Acquisition Hardware709
  - Sampling Process711
  - Sampling Modes712
  - Waveform Record712
  - Interleaving714
  - Interpolation714
  - Triggering Concepts714
  - Trigger Sources716
  - Trigger Types717
  - Trigger Modes720
  - Trigger Holdoff721
  - Trigger Coupling722
  - Trigger Slope and Level722
  - Horizontal Trigger Position723
  - Delayed Trigger System724
- Advanced Triggering724
- Bus Trigger725
- Communication Trigger725
- Communication Triggering726
- Glitch Trigger727
- Pattern Trigger727
- Runt Trigger728
- Setup and Hold Trigger728
- State Trigger730
- Timeout Trigger731
- Transition Time Trigger731
- Video Trigger731
- Width Trigger732
- Window Trigger732
- Sequential Triggering733
- Triggering with Horizontal Delay off733
- Triggering with Horizontal Delay on734
- Triggering and Horizontal Delay Summary736
- Display Overview736
- Display Elements737
- Customizable Display Elements739
- Acquisition Preview742
- Waveform Display742
- Operations on the Time Base744
- Horizontal Position and the Horizontal Reference Point745
- Using the Multizoom Feature746
- Automatic Measurements746
- Measurement Variables748
- Measurement Algorithms751
- Measurements on Envelope Waveforms760
- Missing or Out-Of-Range Samples761
- Measurement Warnings762
- Measurement Errors763
- Cursor Types764
- Histograms765
- Typical Math Waveforms765
- Math Waveforms766
- Math Waveform Differentiation768
- Math Waveform Sources770
- Math Waveform Expression Syntax771
  - Offset, Position, Scale, and Math Waveforms772
  - Waveform Integration772
  - Mask Testing803
File Menu843
- Acquisition Mode858
- Installing Software866
- Negative Duty Cycle895
- Normal Trigger Mode896
- Positive Duty Cycle918
- Probe Compensation921
- Rise Time926
- Trigger Source951

Tektronix DSA70000D Series - Page 759

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