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Application Examples

NOTE.

Triggering on RS-232 bus signals requires use of the DPO3COMP Serial Triggering and Analysis Module. (See page 24,

Application Module Free Trial.)

Connect the desired analog probe tip to the
desired test point.

DPO3000 Series Oscilloscopes User Manual

269

Summary of Contents for DPO3000 Series

Page 1: ...DPO3000 Series Digital Phosphor Oscilloscopes ZZZ User Manual xx www tektronix com 071 2410 01 ...

Page 2: ... previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc e Scope iView OpenChoice TekSecure and TekVPI are registered trademarks of Tektronix Inc Wave Inspector is a trademark of Tektronix Inc Contacting Tektronix Tektronix Inc 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA For product information ...

Page 3: ...ated Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by per...

Page 4: ......

Page 5: ...s 13 Securing the Oscilloscope 15 Powering On the Oscilloscope 16 Powering Off the Oscilloscope 18 Functional Check 19 Compensating a Passive Voltage Probe 22 Application Module Free Trial 24 Installing an Application Module 25 Changing the User Interface Language 26 Changing the Date and Time 28 Signal Path Compensation 30 Upgrading Firmware 33 Connecting Your Oscilloscope to a Computer 40 DPO300...

Page 6: ...ult Setup 83 Using Autoset 84 Acquisition Concepts 85 How the Analog Acquisition Modes Work 88 Changing the Acquisition Mode Record Length and Delay Time 90 Using Roll Mode 93 Setting Up a Serial Bus 95 Trigger Setup 107 Triggering Concepts 107 Choosing a Trigger Type 114 Selecting Triggers 116 Triggering on Buses 121 Checking Trigger Settings 130 Using Sequence Trigger A Main and B Delayed 131 St...

Page 7: ...veform Data 155 Taking Automatic Measurements 155 Selecting Automatic Measurements 157 Customizing an Automatic Measurement 163 Taking Manual Measurements with Cursors 171 Using Math Waveforms 177 Using FFT 180 Using Advanced Math 184 Using Reference Waveforms 187 Using Wave Inspector to Manage Long Record Length Waveforms 189 Save and Recall Information 199 Saving a Screen Image 203 Saving and Re...

Page 8: ...e Measurements 227 Analyzing Signal Detail 240 Triggering on a Video Signal 249 Capturing a Single Shot Signal 255 Correlating Data with a TLA5000 Logic Analyzer 261 Tracking Down Bus Anomalies 263 Troubleshooting an RS 232 Bus 268 Appendix Warranted Specifications Safety Certifications and Electromagnetic Compatibility 273 Index iv DPO3000 Series Oscilloscopes User Manual ...

Page 9: ...be Ground the Product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the pro...

Page 10: ...t Damp Conditions Do Not Operate in an Explosive Atmosphere Keep Product Surfaces Clean and Dry Provide Proper Ventilation Refer to the manual s installation instructions for details on installing the product so it has proper ventilation Terms in this Manual These terms may appear in this manual WARNING Warning statements identify conditions or practices that could result in injury or loss of life...

Page 11: ...tes an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product The following symbol s may appear on the product DPO3000 Series Oscilloscopes User Manual vii ...

Page 12: ...ces we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately The symbol shown below indicates that this product complies with the European Union s requirements according to Directive 2002 96 EC on waste electrical and electronic equipment WEEE For information about recycling options check the Support Service ...

Page 13: ...siderations Restriction of Hazardous Substances This product has been classified as Monitoring and Control equipment and is outside the scope of the 2002 95 EC RoHS Directive DPO3000 Series Oscilloscopes User Manual ix ...

Page 14: ...GS s on all analog channels 5 M points record length on all channels 50 000 waveforms second display rate I2C SPI CAN LIN RS 232 RS 422 RS 485 and UART bus triggering and analysis with the appropriate application module and model oscilloscope Wave Inspector controls for managing long record lengths with zoom and pan play and pause search and mark 229 mm 9 inch with 800 x 480 resolution WVGA color ...

Page 15: ...oductivity and analysis software Remote viewing and control with e Scope Remote control with VISA connectivity TekVPI Versatile Probe Interface supports active differential and current probes for automatic scaling and units Conventions Used in This Manual The following icons are used throughout this manual Sequence Step Front panel power Connect power Network USB DPO3000 Series Oscilloscopes User ...

Page 16: ...Preface xii DPO3000 Series Oscilloscopes User Manual ...

Page 17: ...eck that you received all items listed as standard accessories The following pages list recommended accessories and probes instrument options and upgrades Check the Tektronix Web site www tektronix com for the most current information DPO3000 Series Oscilloscopes User Manual 1 ...

Page 18: ...XX Korean Option L9 071 2419 XX DPO3000 Series Oscilloscopes User Manual Russian Option L10 071 2420 XX DPO3000 Series Oscilloscopes Documentation Browser CD Electronic versions of documents including the Programmer Manual and the Technical Reference 063 4104 XX NI LabVIEW SignalExpress Tektronix Edition and Tektronix OpenChoice Desktop CD Productivity analysis and documentation software 063 3967 ...

Page 19: ... Option L5 335 1921 00 Portuguese Option L6 335 1922 00 Simplified Chinese Option L7 335 1923 00 Traditional Chinese option L8 335 1924 00 Korean Option L9 335 1925 00 Front Panel Overlay Russian Option L10 335 1926 00 For DPO3000 series Probes One 500 MHz 10X passive probe per channel P6139A Front Cover Hard plastic cover to help protect the instrument 200 2524 00 DPO3000 Series Oscilloscopes Use...

Page 20: ... Universal Euro Option A1 161 0343 00 United Kingdom Option A2 161 0344 00 Australia Option A3 161 0346 00 Switzerland Option A5 161 0347 00 Japan Option A6 161 0342 00 China Option A10 161 0341 00 India Option A11 161 0349 00 Power Cord No power cord or AC adapter Option A99 4 DPO3000 Series Oscilloscopes User Manual ...

Page 21: ...d LIN serial buses as well as digital views of the signal bus views bus decoding search tools and packet decode tables with timestamp information DPO3AUTO DPO3COMP The computer triggering and analysis module enables triggering on RS 232 RS 422 RS 485 and UART serial buses search tools bus views bus decoding in hex binary and ASCII and decode tables with timestamp information DPO3COMP DPO3VID The e...

Page 22: ...g case which requires use of the soft transit case ACD4000 HCTEK4321 USB flash drive Extra storage 119 7276 00 DPO3000 Series Oscilloscopes Programmer Manual Describes commands for remote control of the oscilloscope Available electronically on the Documentation Browser CD or for download from www tektronix com manuals 071 2421 XX DPO3000 Series Oscilloscopes Technical Reference Manual Describes th...

Page 23: ...information on DPO3000 oscilloscopes 071 2422 XX DPO3000 Series Oscilloscopes Module Installation Manual 071 2524 XX The DPO3000 series oscilloscopes work with multiple optional probes See page 13 Connecting Probes Check the Tektronix Web site www tektronix com for the most current information DPO3000 Series Oscilloscopes User Manual 7 ...

Page 24: ... to 240 V 400 Hz 10 at 115 V Power Consumption 120 W maximum Weight 4 2 kg 9 2 lbs standalone instrument Height including feet but not handle 203 2 mm 8 in Width 416 6 mm 16 4 in Depth 147 4 mm 5 8 in Clearance 51 mm 2 in DPO3000 series Temperature Operating 0 C to 50 C Nonoperating 40 C to 71 C 8 DPO3000 Series Oscilloscopes User Manual ...

Page 25: ...erating 3 000 m 9 843 ft Nonoperating Altitude 12 000 m 39 370 ft Random Vibration Operating 0 31 GRMS 5 500 Hz 10 minutes per axis 3 axes 30 minutes total Non operating 2 46 GRMS 5 500 Hz 10 minutes per axis 3 axes 30 minutes total Pollution Degree 2 Indoor use only Acquisition System 1 MΩ The maximum input voltage At front panel connector 300 VRMS Installation Category II for measurements perfor...

Page 26: ... keep the sides and rear of the instrument clear of obstructions Total Probe Power If the total probe power requirements exceed the available power from the oscilloscope connect the external AC adapter Tektronix part number 119 7465 XX to the rear panel Probe Power connector Maximum Probe Power Available Per Channel 3 or 5 TekVPI Interfaces 5 V 5 50 mA max 250 mW max 12 V 10 2 A max 24 W max 10 DP...

Page 27: ...eforms derate at 20 dB decade above 2 5 MHz to 50 VRMS at 20 MHz and above Output Voltage terminated into 1 MΩ 40 VRMS or 40 V DC CAT I 2 500 Vpk impulse 30 VRMS or 30 V DC CAT I 250 Vpk impulse 15 VRMS or 15 V DC CAT I 250 Vpk impulse Temperature Operating 15 C to 65 C 5 F to 149 F Nonoperating 62 C to 85 C 80 F to 185 F Altitude 2 000 meters Pollution Degree 2 Indoor use only DPO3000 Series Osci...

Page 28: ...move loose dust on the outside of the oscilloscope and probes with a lint free cloth Use care to avoid scratching the clear glass display filter 2 Use a soft cloth dampened with water to clean the oscilloscope Use an aqueous solution of 75 isopropyl alcohol for more efficient cleaning CAUTION To avoid damage to the surface of the oscilloscope or probes do not use any abrasive or chemical cleaning ...

Page 29: ...through on screen menus and remotely through programmable support The remote control is useful in applications like ATE where you want the system to preset probe parameters 2 TPA BNC Adapter The TPA BNC Adapter allows you to use TEKPROBE II probe capabilities such as providing probe power and passing scaling and unit information to the oscilloscope DPO3000 Series Oscilloscopes User Manual 13 ...

Page 30: ...pass the waveform signal and scaling to the oscilloscope Some only pass the signal and there is no other communication For more information on the many probes available for use with DPO3000 series oscilloscopes refer to www tektronix com 14 DPO3000 Series Oscilloscopes User Manual ...

Page 31: ...Installation Securing the Oscilloscope 1 Use a standard laptop computer style security lock to secure your oscilloscope to your location DPO3000 Series Oscilloscopes User Manual 15 ...

Page 32: ...ded to earth ground Grounding the oscilloscope is necessary for safety and to take accurate measurements The oscilloscope needs to share the same ground as any circuits that you are testing If you are working with static sensitive components ground yourself Static electricity that builds up on your body can damage static sensitive components Wearing a grounding strap safely sends static charges on...

Page 33: ...Installation To connect the power cord and power on the oscilloscope DPO3000 Series Oscilloscopes User Manual 17 ...

Page 34: ...Installation Powering Off the Oscilloscope To power off the oscilloscope and remove the power cord 18 DPO3000 Series Oscilloscopes User Manual ...

Page 35: ...uick functional check to verify that your oscilloscope is operating correctly 1 Connect the oscilloscope power cable as described in Powering On the Oscilloscope See page 16 2 Power on the oscilloscope DPO3000 Series Oscilloscopes User Manual 19 ...

Page 36: ...Installation 3 Connect the P6139A probe tip and reference lead to the PROBE COMP connectors on the oscilloscope 4 Push Default Setup 20 DPO3000 Series Oscilloscopes User Manual ...

Page 37: ... set the Vertical scale to 500 mV If the signal appears but is misshapen perform the procedures for compensating the probe See page 22 Compensating a Passive Voltage Probe If no signal appears rerun the procedure If this does not remedy the situation have the instrument serviced by qualified service personnel DPO3000 Series Oscilloscopes User Manual 21 ...

Page 38: ...ch it to the corresponding oscilloscope input channel To properly compensate your passive probe 1 Follow the steps for the functional check See page 19 Functional Check 2 Check the shape of the displayed waveform to determine if your probe is properly compensated Properly compensated Under compensated Over compensated 22 DPO3000 Series Oscilloscopes User Manual ...

Page 39: ...Installation 3 If necessary adjust your probe Repeat as needed DPO3000 Series Oscilloscopes User Manual 23 ...

Page 40: ...r all application modules not installed in your oscilloscope The trial period begins when you power on the oscilloscope for the first time After 30 days you must purchase the module if you want to continue using the application To see the date when your free trial period expires push the front panel Utility button push the lower bezel Utility Page button use multipurpose knob a to select Config an...

Page 41: ... go into the two slots with windows in the upper right corner of the front panel Two additional slots are directly behind the two that you can see To use these slots install the module with the label facing away from you Refer to the Tektronix 3000 Series Oscilloscopes Application Module Installation Instructions that came with your application module for instructions on installing and testing an ...

Page 42: ...ont panel button labels through the use of an overlay 1 Push Utility 2 Push Utility Page Utility Page 3 Turn multipurpose knob a and select Config Config 4 Push Language from the resulting lower bezel menu Utility Page Config Language English Set Date Time TekSecure Erase Memory About 26 DPO3000 Series Oscilloscopes User Manual ...

Page 43: ...an Japanese Korean Simplified Chinese and Traditional Chinese 6 If you choose to use English be sure that the plastic front panel overlay is removed If you choose a language other than English place the plastic overlay for the language that you desire over the front panel to display labels in that language DPO3000 Series Oscilloscopes User Manual 27 ...

Page 44: ...ith the current date and time 1 Push Utility 2 Push Utility Page Utility Page 3 Turn multipurpose knob a and select Config Config 4 Push Set Date Time System Config Language English Set Date Time TekSecure Erase Memory About 28 DPO3000 Series Oscilloscopes User Manual ...

Page 45: ...me On Off 5 Push the side bezel buttons and turn both multipurpose knobs a and b to set the time and date values Hour 4 Minute 1 Month May Day 3 Year 2007 6 Push OK Enter Date Time OK Enter Date Time DPO3000 Series Oscilloscopes User Manual 29 ...

Page 46: ... 10 C or once a week if you use vertical settings of 5 mV division or less Failure to do so may result in the instrument not meeting warranted performance levels at those volts div settings To compensate the signal path 1 Warm up the oscilloscope for at least 20 minutes Remove all input signals probes and cables from channel inputs Input signals with AC components adversely affect SPC 30 DPO3000 S...

Page 47: ...sh Utility Page Utility Page 4 Turn multipurpose knob a and select Calibration Calibration 5 Push Signal Path from the lower bezel menu Utility Page Calibration Signal Path Pass Factory Pass DPO3000 Series Oscilloscopes User Manual 31 ...

Page 48: ...s If it does not then recalibrate the instrument or have the instrument serviced by qualified service personnel Service personnel use the factory calibration functions to calibrate the internal voltage references of the oscilloscope using external sources Refer to your Tektronix field office or representative for assistance with factory calibration NOTE Signal Path Compensation does not include ca...

Page 49: ...en up a Web browser and go to www tektronix com software Proceed to the software finder Download the latest firmware for your oscilloscope on your PC Unzip the files and copy the firmware img file into the root folder of a USB flash drive DPO3000 Series Oscilloscopes User Manual 33 ...

Page 50: ...Installation 2 Power off your oscilloscope 34 DPO3000 Series Oscilloscopes User Manual ...

Page 51: ...Installation 3 Insert the USB flash drive into the front panel USB port on your oscilloscope DPO3000 Series Oscilloscopes User Manual 35 ...

Page 52: ...t does not install the firmware rerun the procedure If the problem continues try a different model of USB flash drive Finally if needed contact qualified service personnel NOTE Do not power off the oscilloscope or remove the USB flash drive until the oscilloscope finishes installing the firmware 36 DPO3000 Series Oscilloscopes User Manual ...

Page 53: ...Installation 5 Power off the oscilloscope and remove the USB flash drive DPO3000 Series Oscilloscopes User Manual 37 ...

Page 54: ...Installation 6 Power on the oscilloscope 7 Push Utility 38 DPO3000 Series Oscilloscopes User Manual ...

Page 55: ...elect Config Config 10 Push About The oscilloscope displays the firmware version number Utility Page Config Language English Set Date Time TekSecure Erase Memory About 11 Confirm that the version number matches that of the new firmware DPO3000 Series Oscilloscopes User Manual 39 ...

Page 56: ...te with your oscilloscope from your computer through a software application Use e Scope to communicate with your oscilloscope through a Web browser Using VISA VISA lets you use your MS Windows computer to acquire data from your oscilloscope for use in an analysis package that runs on your PC such as Microsoft Excel National Instruments LabVIEW or a program of your own creation You can use a common...

Page 57: ...net cable To communicate between the oscilloscope and a GPIB system connect the oscilloscope to the TEK USB 488 GPIB to USB Adapter with a USB cable Then connect the adapter to your GPIB system with a GPIB cable Cycle the power on the oscilloscope DPO3000 Series Oscilloscopes User Manual 41 ...

Page 58: ...e using USB the system sets itself up automatically for you if USB is enabled Utility Page I O USB Enabled Ethernet Network Settings GPIB 1 Check USB on the lower bezel menu to be sure that USB is enabled If it is not enabled push USB Then push Enabled on the side bezel menu 42 DPO3000 Series Oscilloscopes User Manual ...

Page 59: ...ing a through cable set DHCP to On If you are using a cross over cable set it to Off and set a hard coded TCPIP address Test Connection 8 If you are using GPIB push GPIB Enter the GPIB address on the side bezel menu using multipurpose knob a Talk Listen Address a 1 This will set the GPIB address on an attached TEK USB 488 Adapter DPO3000 Series Oscilloscopes User Manual 43 ...

Page 60: ...ndalone acquisition program called the OpenChoice Desktop The rear panel USB 2 0 device port is the correct USB port for computer connectivity Use the rear and front panel USB 2 0 host ports to connect your oscilloscope to USB flash drives and printers USB Host port USB Device port Using e Scope e Scope lets you access any Internet connected DPO3000 series oscilloscope from a browser on your works...

Page 61: ...r 1 Connect the oscilloscope to your computer network with the appropriate Ethernet cable If you are connecting directly to your computer you need a Crossover Ethernet Cable If you are connecting to a network or a hub you need a Straight Through Ethernet Cable 2 Push Utility DPO3000 Series Oscilloscopes User Manual 45 ...

Page 62: ... Push Utility Page Utility Page 4 Turn multipurpose knob a and select I O I O 5 Push Ethernet Network Settings Utility Page I O USB Enabled Ethernet Network Settings GPIB 1 46 DPO3000 Series Oscilloscopes User Manual ...

Page 63: ... DHCP note the Ethernet address and instrument name If you are using Static addressing enter the Ethernet address you will be using DHCP BOOTP On Off Test Connection NOTE Depending on the type and speed of network to which your DPO3000 series oscilloscope is connected you may not see the DHCP BOOTP field update instantaneously after pressing the DHCP BOOTP button It may take a few seconds to updat...

Page 64: ... to Your Oscilloscope You can connect a US style USB keyboard to a USB Host port on the rear or front panel of the oscilloscope The oscilloscope will detect the keyboard even if it is plugged in while the oscilloscope is powered on You can use the keyboard to quickly create names or labels You can bring up the Label menu through the lower bezel label button of the Channel or Bus menus Use the arro...

Page 65: ...uainted with the Instrument Front Panel Menus and Controls The front panel has buttons and controls for the functions that you use most often Use the menu buttons to access more specialized functions DPO3000 Series Oscilloscopes User Manual 49 ...

Page 66: ...Get Acquainted with the Instrument Using the Menu System To use the menu system 1 Push a front panel menu button to display the menu that you want to use 50 DPO3000 Series Oscilloscopes User Manual ...

Page 67: ...a lower bezel button to select a menu item If a pop out menu appears turn multipurpose knob a to select the desired choice If a pop up menu appears press the button again to select the desired choice DPO3000 Series Oscilloscopes User Manual 51 ...

Page 68: ... item contains more than one choice push the side bezel button repeatedly to cycle through the choices If a pop out menu appears turn multipurpose knob a to select the desired choice 4 To remove a side bezel menu push the lower bezel button again or push Menu Off 52 DPO3000 Series Oscilloscopes User Manual ...

Page 69: ... to complete the setup Use the upper and lower multipurpose knobs a and b to adjust values 6 Push Fine to turn off or on the ability to make smaller adjustments Using the Menu Buttons Use the menu buttons to perform many functions in the oscilloscope DPO3000 Series Oscilloscopes User Manual 53 ...

Page 70: ...an acquisition for user defined events criteria 3 Test Push to activate advanced or application specific testing features 4 Acquire Push to set the acquisition mode and adjust the record length 5 Autoset Push to perform an automatic setup of oscilloscope settings 6 Trigger Menu Push to specify trigger settings 54 DPO3000 Series Oscilloscopes User Manual ...

Page 71: ...ting the date time 8 Save Recall Menu Push to save and recall setups waveforms and screen images to internal memory or a USB flash drive 9 Channel 1 2 3 or 4 Menu Push to set vertical parameters for input waveforms and to display or remove the corresponding waveform from the display DPO3000 Series Oscilloscopes User Manual 55 ...

Page 72: ...85 and UART buses Also push the B1 or B2 button to display or remove the corresponding bus from the display 11 R Push to manage reference waveforms including the display or removal of each reference waveform from the display 12 M Push to manage the math waveform including the display or removal of the math waveform from the display Using Other Controls These buttons and knobs control waveforms cur...

Page 73: ... Push the Fine button to toggle between coarse and fine adjustment Screen icons tell you when a or b are active 2 Cursors Push once to activate the two vertical cursors Push again to turn on the two vertical and two horizontal cursors Push again to turn off all cursors When the cursors are on you can turn the multipurpose knobs to control their position DPO3000 Series Oscilloscopes User Manual 57 ...

Page 74: ...both visible you can push this button to make either the vertical cursors or the horizontal cursors active 4 Fine Push to toggle between making coarse and fine adjustments with the vertical and horizontal position knobs the trigger level knob and many operations of multipurpose knobs a and b 5 Waveform Intensity Push to enable multipurpose knob a to control waveform display intensity and knob b to...

Page 75: ...tton Push to activate zoom mode 8 Pan outer knob Turn to scroll the zoom window through the acquired waveform 9 Zoom inner knob Turn to control the zoom factor Turning it clockwise zooms in further Turning it counterclockwise zooms out 10 Play pause button Push to start or stop the automatic panning of a waveform Control the speed and direction with the pan knob DPO3000 Series Oscilloscopes User M...

Page 76: ...or delete a waveform mark 13 Next Push to jump to the next waveform mark 14 Horizontal Position Turn to adjust the trigger point location relative to the acquired waveforms Push Fine to make smaller adjustments 15 Horizontal Scale Turn to adjust the horizontal scale time division 60 DPO3000 Series Oscilloscopes User Manual ...

Page 77: ... Autoset Push to automatically set the vertical horizontal and trigger controls for a usable stable display 19 Trigger Level Turn to adjust the trigger level Push this button to set the trigger level to the midpoint of the waveform 20 Force Trig Push to force an immediate trigger event DPO3000 Series Oscilloscopes User Manual 61 ...

Page 78: ...o display or remove the corresponding waveform from the display and access the vertical menu 23 Vertical Scale Turn to adjust the vertical scale factor of the corresponding waveform volts division 24 Print Push to print a screen image using the printer selected in the Utility menu 25 Power switch Push to power on or off the instrument 62 DPO3000 Series Oscilloscopes User Manual ...

Page 79: ...e more USB 2 0 host port on the rear panel 27 Save Push to perform an immediate save operation The save operation uses the current save parameters as defined in the Save Recall menu 28 Default Setup Push to perform an immediate restore of the oscilloscope to the default settings 29 Menu Off Push to clear a displayed menu from the screen DPO3000 Series Oscilloscopes User Manual 63 ...

Page 80: ...g Items in the Display The items shown to the right may appear in the display Not all of these items are visible at any given time Some readouts move outside the graticule area when menus are turned off 64 DPO3000 Series Oscilloscopes User Manual ...

Page 81: ...ffect Icons are Run Acquisitions enabled Stop Acquisitions not enabled Roll In roll mode 40 ms div or slower PreVu In this state the oscilloscope is stopped or between triggers You can change the horizontal or vertical position or scale to see approximately what the next acquisition will look like DPO3000 Series Oscilloscopes User Manual 65 ...

Page 82: ...on 3 The expansion point icon an orange triangle shows the point that the horizontal scale expands and compresses around 4 The waveform record view shows the trigger location relative to the waveform record The line color corresponds to the selected waveform color 66 DPO3000 Series Oscilloscopes User Manual ...

Page 83: ...red Auto Acquiring untriggered data PrTrig Acquiring pretrigger data Trig Waiting for trigger 6 The cursor readout shows time amplitude and delta Δ values for each cursor For FFT measurements it shows frequency and magnitude For serial buses the readout shows the decoded values DPO3000 Series Oscilloscopes User Manual 67 ...

Page 84: ...he trigger readout shows the trigger source slope and level The trigger readouts for other trigger types show other parameters 9 The top line of the record length sampling rate readout shows the sampling rate adjust with the Horizontal Scale knob The bottom line shows the record length adjust with the Acquire menu 68 DPO3000 Series Oscilloscopes User Manual ...

Page 85: ...e T symbol to the expansion point icon adjust with the Horizontal Position knob Use horizontal position to insert added delay between when the trigger occurs and when you actually capture the data Insert a negative time to capture more pretrigger information With Delay Mode off the bottom line shows the time location of the trigger within the acquisition as a percentage DPO3000 Series Oscilloscope...

Page 86: ...r below the display To obtain a proper numerical measurement turn the vertical scale and position knobs to make all of the waveform appear in the display 12 The auxiliary waveform readouts show the vertical and horizontal scale factors of the math and reference waveforms 13 The channel readout shows the channel scale factor per division coupling invert and bandwidth status Adjust with the Vertical...

Page 87: ...eline indicator shows the zero volt level of a waveform ignoring the effect of offset The icon colors correspond to the waveform colors 15 The bus display shows decoded packet level information for serial buses or for parallel buses DPO3000 Series Oscilloscopes User Manual 71 ...

Page 88: ... level range is adjustable from 8 V to 8 V The maximum input voltage is 450V peak 300V RMS Input resistance is 1 MΩ 1 in parallel with 11 5 pF 2 pF 3 PROBE COMP Square wave signal source to compensate probes Output voltage 0 2 5V amplitude 1 behind 1 kΩ 2 Frequency 1 kHz 4 Ground 5 Application Module Slots 72 DPO3000 Series Oscilloscopes User Manual ...

Page 89: ...Get Acquainted with the Instrument Side Panel Connector 1 Ground strap connector This is a receptacle for a grounding strap DPO3000 Series Oscilloscopes User Manual 73 ...

Page 90: ...pen circuit 2 2 V into a 50Ω load to ground The logic level for Vout LO is 0 4 V into a load of 4 mA 0 2 V into a 50Ω load to ground 3 Probe Power Use this port to provide auxiliary power for TekVPI probes when needed 4 Video Out Use the Video Out port DB 15 female connector to show the oscilloscope display on an external monitor or projector 5 LAN Use the LAN Ethernet port RJ 45 connector to conn...

Page 91: ...communicate using IEEE488 style messages This lets you run your GPIB software applications on USB hardware 7 Host Use the USB 2 0 Full speed host ports one on the rear panel and one on the front to take advantage of USB flash drives keyboards and printers 8 Power input Attach to an AC power line with integral safety ground See page 8 Operating Considerations DPO3000 Series Oscilloscopes User Manua...

Page 92: ... up the oscilloscope to acquire the signal as you want it to Setting Up Analog Channels Use front panel buttons and knobs to set up your instrument to acquire signals using the analog channels 1 Connect the P6139A or TekVPI probe to the input signal source 76 DPO3000 Series Oscilloscopes User Manual ...

Page 93: ...nel by pushing the front panel buttons NOTE If you are using a probe that does not supply probe encoding set the attenuation probe factor on the oscilloscope vertical menu for the channel to match the probe 4 Push Autoset DPO3000 Series Oscilloscopes User Manual 77 ...

Page 94: ...n and scale The horizontal position determines the number of pretrigger and posttrigger samples The horizontal scale determines the size of the acquisition window relative to the waveform You can scale the window to contain a waveform edge a cycle several cycles or thousands of cycles 78 DPO3000 Series Oscilloscopes User Manual ...

Page 95: ...ord Length Waveforms Labeling Channels and Buses You can add a label to the channels and buses shown on the display for easy identification The label is placed on the waveform baseline indicator in the left side of the screen The label can have up to 32 characters To label a channel or bus follow these steps 1 Push a front panel button for an input channel or a bus DPO3000 Series Oscilloscopes Use...

Page 96: ...s for channel 1 or B1 Label 3 Push Select Preset Label to view a list of labels Select Preset Label 4 Turn multipurpose knob b to scroll through the list to find a suitable label You can edit the label after you insert it if necessary 80 DPO3000 Series Oscilloscopes User Manual ...

Page 97: ... the arrow keys to position the insertion point and edit the inserted label or type in a new label See page 48 Connecting a USB Keyboard to Your Oscilloscope 6 If you do not have a USB keyboard connected push the side and lower bezel arrow keys to position the insertion point DPO3000 Series Oscilloscopes User Manual 81 ...

Page 98: ... that you want to enter ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789_ 8 Push Select or Enter Character to let the oscilloscope know that you have picked the proper character to use You can use the lower bezel buttons to edit the label as needed Enter Character Back Space Delete Clear 82 DPO3000 Series Oscilloscopes User Manual ...

Page 99: ... For another label push the side and lower bezel arrow keys to reposition the insertion point 10 Push Display Labels and select On to see the label Display Labels On Off Using the Default Setup To return the oscilloscope to its default settings 1 Push Default Setup DPO3000 Series Oscilloscopes User Manual 83 ...

Page 100: ...d vertical controls such that it displays four or five waveform cycles for analog channels with the trigger near the midlevel and ten cycles for digital channels Autoset works with both the analog and digital channels 1 Connect the analog probe and then select the input channel See page 76 Setting Up Analog Channels 2 Push Autoset to execute an Autoset 84 DPO3000 Series Oscilloscopes User Manual ...

Page 101: ...es it If you use Autoset and the oscilloscope detects a video signal the oscilloscope automatically sets the trigger type to video and makes other adjustments to display a stable video signal Acquisition Concepts Before a signal can be displayed it must pass through the input channel where it is scaled and digitized Each channel has a dedicated input amplifier and digitizer Each channel produces a...

Page 102: ...waveform record which is then stored in acquisition memory Input signal Sampled points Digital values Real Time Sampling Record points DPO3000 series oscilloscopes use real time sampling In real time sampling the instrument digitizes all of the points it acquires using a single trigger event Sampling rate 86 DPO3000 Series Oscilloscopes User Manual ...

Page 103: ...urning the Horizontal Scale knob or changing the record length with the bezel buttons Record length The number of samples required to fill a waveform record Set this by pushing the Acquire button and using the resulting lower and side bezel menus Trigger point The zero time reference in a waveform record It is shown on the screen by an orange T DPO3000 Series Oscilloscopes User Manual 87 ...

Page 104: ...acquire the record after the trigger point Use a negative time to acquire it before the trigger point Expansion point The point that the horizontal scale expands and contracts around It is shown by an orange triangle How the Analog Acquisition Modes Work Sample mode retains the first sampled point from each acquisition interval Sample is the default mode 88 DPO3000 Series Oscilloscopes User Manual...

Page 105: ...on interval This mode only works with real time noninterpolated sampling Hi Res provides a higher resolution lower bandwidth waveform Envelope mode finds the highest and lowest record points over all acquisitions Envelope uses Peak Detect for each individual acquisition Average mode calculates the average value for each record point over a user specified number of acquisitions Average uses Sample ...

Page 106: ... Record Length and Delay Time Use this procedure to change the acquisition mode 1 Push Acquire 2 Push Mode Mode Sample Record Length 10k Delay On Off Set Horiz Position to 10 Waveform Display XY Display Off 90 DPO3000 Series Oscilloscopes User Manual ...

Page 107: ... points that the oscilloscope would have discarded at lower sweep speeds Therefore these modes only work when the current sample rate is less than the maximum possible sample rate As soon as the oscilloscope starts to acquire at the maximum sample rate then the Peak Detect Hi Res and Sample modes all look the same You can control the sample rate by setting the Horizontal scale and the Record Lengt...

Page 108: ...average over 5 Push Record Length 6 Push the side bezel menu record length button 10k points Choose among 1000 10 k 100 k 1 M and 5 M points 7 Push the lower bezel Delay button to select On when you want to delay the acquisition relative to the trigger event 92 DPO3000 Series Oscilloscopes User Manual ...

Page 109: ...t Use the delay feature when you want to acquire waveform detail that is separated from the trigger event by a significant interval of time For example you can trigger on a sync pulse that occurs once every 10 ms and then look at high speed signal characteristics that occur 6 ms after the sync pulse When the delay feature is set to Off the expansion point is tied to the trigger point so that scale...

Page 110: ...isition mode using math waveforms turning on a bus or switching to Normal trigger will disable Roll mode Roll mode is disabled when you set the horizontal scale to 20 ms per division or faster Push Run Stop to halt Roll mode 94 DPO3000 Series Oscilloscopes User Manual ...

Page 111: ...AUTO application module is installed RS 232 RS 422 RS 485 and UART serial buses if the DPO3COMP application module is installed See page 24 Application Module Free Trial Using Buses in Two Steps To quickly use serial bus triggering 1 Push B1 or B2 and enter parameters of the bus to trigger on You can separately use B1 and B2 to view two different buses DPO3000 Series Oscilloscopes User Manual 95 ...

Page 112: ...g a Trigger Type You can display bus information without triggering on the bus signal Setting Up Bus Parameters NOTE For all serial bus sources use channels 1 through 4 To set up bus parameters 1 Push B1 or B2 to bring up the lower bezel bus menu 96 DPO3000 Series Oscilloscopes User Manual ...

Page 113: ...loscope and the application modules installed LIN 3 Push Define Inputs B1 CAN Define Inputs Thresholds B1 Label CAN Bus Display Event Table 4 If you selected I2C above push Define Inputs and the desired side bezel menu choices You can assign the predefined SCLK Input or SDA Input to any channel B1 I2C Define Inputs Thresholds Include R W in Address No B1 Label I2C Bus Display Event Table DPO3000 S...

Page 114: ... the eighth bit LSB is the R W bit 10 bit addresses are displayed as 11 bits The first two bits are the two MSBs of the address The next bit is the R W bit The last eight bits are the eight LSBs of the address In the physical layer of the I2C protocol 10 bit I2C addresses are preceded by the five bit code 11110 The oscilloscope never includes these five bits in address readouts If you select No th...

Page 115: ...han the threshold value it is considered active 7 If you selected CAN above push Bit Rate and turn multipurpose knob a to select the desired bit rate Bus CAN Define Inputs Thresholds Bit Rate 500 Kbps B1 Label CAN Bus Display Event Table 8 If you selected RS 232 above push Configure Bus RS 232 Define Inputs Thresholds Configure 9600 8 N B1 Label RS 232 Bus Display Event Table Use the side bezel me...

Page 116: ...es You can organize the stream into packets with an end of packet character Packets On Off Turn multipurpose knob a to select an end of packet character End of Packet 0A Linefeed 9 If you selected LIN above push Configure Bus LIN Define Inputs Thresholds Configure B1 Label LIN Bus Display Event Table Use the side bezel menu to configure the bus 100 DPO3000 Series Oscilloscopes User Manual ...

Page 117: ... bit rate Bit Rate 2400 bps Push LIN Standard and turn multipurpose knob a to select the appropriate standard LIN Standard v1 x Push Include Parity Bits with Id to select whether or not to include parity bits Include Parity Bits with Id Yes No DPO3000 Series Oscilloscopes User Manual 101 ...

Page 118: ...ion decoded for easy visual inspection much like what you would see on a logic analyzer Bus and Waveforms Push Bus and Waveforms to display both views of the signal Hex Push the desired side bezel menu choice to display the bus data in hex binary decimal for LIN or ASCII for RS 232 format Binary ASCII 102 DPO3000 Series Oscilloscopes User Manual ...

Page 119: ...ps Event Table On Off Save Event Table For an RS 232 bus the table lists decoded bytes or packets Push Save Event Table to save the event table data in a csv spreadsheet formatted file on the currently selected storage device Bus information example Bus and waveforms example DPO3000 Series Oscilloscopes User Manual 103 ...

Page 120: ... or 8 bit byte when Packets are set to Off RS 232 event tables display one line for each packet when Packets are set to On 12 Push B1 or B2 and turn multipurpose knob a to move the bus display up or down on the screen To trigger on serial bus conditions refer to Triggering on Buses See page 121 Triggering on Buses 104 DPO3000 Series Oscilloscopes User Manual ...

Page 121: ...RS 232 and LIN buses transmit the LSB least significant bit first NOTE The oscilloscope displays the decode traces and event tables for all buses with the MSB on the left and LSB on the right For example an RS 232 signal after the start bit might be high high high low high low low and high Since the RS 232 protocol uses high for zero and low for one this value would be 0001 0110 Since the decode d...

Page 122: ...racter to use for RS 232 decoding the stream of bytes will be displayed as packets When decoding an RS 232 bus in ASCII mode a large dot indicates that the value represents a character outside the printable ASCII range 106 DPO3000 Series Oscilloscopes User Manual ...

Page 123: ... enough sample points to fill the pretrigger portion of the waveform record That is the part of the waveform that is displayed before or to the left of the triggering event on screen When a trigger event occurs the instrument starts acquiring samples to build the posttrigger portion of the waveform record that is the part displayed after or to the right of the trigger event After a trigger is reco...

Page 124: ...nt to acquire a waveform even if a trigger does not occur Auto mode uses a timer that starts when the acquisition is started and the pretrigger information is obtained If a trigger event is not detected before the timer times out the instrument forces a trigger The length of time it waits for a trigger event depends on the time base setting Auto mode when forcing triggers in the absence of valid t...

Page 125: ...ed trigger events Trigger holdoff can help stabilize triggering since the oscilloscope does not recognize new triggers during the holdoff time When the instrument recognizes a trigger event it disables the trigger system until acquisition is complete In addition the trigger system remains disabled during the holdoff period that follows each acquisition Holdoffs DPO3000 Series Oscilloscopes User Ma...

Page 126: ...equency Rejection High Frequency Rejection and Noise Rejection Sequence B triggering does not provide AC coupling Other trigger types use DC coupling only Horizontal Position When Delay Mode is on use horizontal position to acquire waveform detail in a region that is separated from the trigger location by a significant interval of time 110 DPO3000 Series Oscilloscopes User Manual ...

Page 127: ...rigger data can help you troubleshoot For example to find the cause of an unwanted glitch in your test circuit you can trigger on the glitch and make the pretrigger period large enough to capture data before the glitch By analyzing what happens before the glitch you may uncover information that helps you find the source of the glitch Alternatively to see what is happening in your system as a resul...

Page 128: ... trigger point on the rising or the falling edge of a signal The level control determines where on that edge the trigger point occurs The oscilloscope provides a long horizontal bar or bars across the graticule to temporarily show the trigger level 112 DPO3000 Series Oscilloscopes User Manual ...

Page 129: ... Turn the front panel Trigger Level knob to adjust the trigger level without going to a menu Push the knob to quickly set the trigger level to the midpoint of the waveform DPO3000 Series Oscilloscopes User Manual 113 ...

Page 130: ...Trigger Setup Choosing a Trigger Type To select a trigger 1 Push Trigger Menu 114 DPO3000 Series Oscilloscopes User Manual ...

Page 131: ...d Rise Fall Time Video 2 Push Type to bring up the Trigger Type side bezel menu NOTE The bus trigger requires use of the DPO3EMBD DPO3AUTO or DPO3COMP application module Bus 3 Turn multipurpose knob a to select the desired trigger type DPO3000 Series Oscilloscopes User Manual 115 ...

Page 132: ...cting Triggers Trigger Type Trigger Conditions Edge Trigger on a rising or falling edge as defined by the slope control Coupling choices are DC AC LF Reject HF Reject and Noise Reject Edge triggers are the simplest and most commonly used trigger type with both analog and digital signals An edge trigger event occurs when the trigger source passes through a specified voltage level in the specified d...

Page 133: ...fied amount of time and then looks for the B Event before triggering and displaying the waveform Events After the A Event occurs the trigger system looks for a specified number of B Events before triggering and displaying the waveform Pulse Width Trigger on pulses that are less than greater than equal to or not equal to a specified time You can trigger on positive or negative pulses Pulse width tr...

Page 134: ...a channel Push the appropriate side bezel button to set that channel s state to High H Low L or Don t Care X Use the Clock side bezel button to enable clocked state triggering You can have at most a single clock channel Push the Clock Edge bottom bezel button to change the polarity of the clock edge Turn off clocked triggering and return to unclocked pattern triggering by selecting the clock chann...

Page 135: ...the Clock side bezel button to select the clock channel Use the Select control Data and Not used buttons to select one or more channels you want to monitor for setup and hold violations NOTE Optimum Setup and Hold trigger performance is achieved by using only analog channels or only digital channels Rise Fall Time Trigger on rise and fall times Trigger on pulse edges that traverse between two thre...

Page 136: ...igger on a variety of HDTV video standard signals as well as custom non standard bilevel and trilevel video signals with 3 to 4 000 lines Bus Trigger on various bus conditions I2C requires a DPO3EMBD module SPI requires a DPO3EMBD module CAN requires a DPO3AUTO module RS 232 RS 422 RS 485 and UART require a DPO3COMP module LIN requires either a DPO3AUTO module See page 24 Application Module Free T...

Page 137: ...OMP application module installed The oscilloscope can display both physical layer as analog waveforms and protocol level information as digital and symbolic waveforms To set up the bus trigger 1 If you have not already defined your bus using the front panel B1 and B2 buttons do so now See page 95 Setting Up a Serial Bus 2 Push Trigger Menu DPO3000 Series Oscilloscopes User Manual 121 ...

Page 138: ...Auto Holdoff 4 Turn multipurpose knob a to scroll through the trigger type side menu until you select Bus B1 I2C 5 Push Source Bus and turn multipurpose knob a to scroll through the source bus side menu until you select the bus that you want to trigger on B2 CAN 122 DPO3000 Series Oscilloscopes User Manual ...

Page 139: ... trigger you can trigger on SS Active MOSI MISO or MOSI MISO If you are using the CAN bus trigger you can trigger on Start of Frame Type of Frame Identifier Data Id Data End of Frame and Missing Ack If you are using the RS 232 bus trigger you can trigger on Tx Start Bit Rx Start Bit Tx End of Packet Rx End of Packet Tx Data or Rx Data If you are using the LIN bus trigger you can trigger on Sync Id...

Page 140: ...he I2C Address side bezel menu Push the side bezel Addressing Mode button and select 7 bit or 10 bit Push the side bezel Address button Enter the address parameters of interest with multipurpose knobs a and b Then push the lower bezel menu Direction button and select the direction of interest Read Write or Read or Write 124 DPO3000 Series Oscilloscopes User Manual ...

Page 141: ... button and enter the number of bytes with multipurpose knob a Push the side bezel Addressing Mode button and select 7 bit or 10 bit Push the side bezel Data button Enter the data parameters of interest with multipurpose knobs a and b For more information on the I2C address formats refer to item 5 under Setting Up Bus Parameters DPO3000 Series Oscilloscopes User Manual 125 ...

Page 142: ...bezel MOSI or MISO button and enter the data parameters of interest with multipurpose knobs a and b Then push the Number of Bytes button and enter the number of bytes with multipurpose knob a If you select MOSI MISO push the lower bezel Data button and enter the parameters of interest in the side bezel menus 126 DPO3000 Series Oscilloscopes User Manual ...

Page 143: ...ush the lower bezel Identifier button and select a Format Then push the Identifier side bezel button and enter a binary or hex value with multipurpose knobs a and b Push the lower bezel menu Direction button and select the direction of interest Read Write or Read or Write If you have made a Trigger On selection of Data Push the lower bezel Data button and enter the parameters of interest with mult...

Page 144: ...or Identifier Data push the lower bezel Identifier or Data buttons and enter the parameters of interest on the resulting side bezel menu If you have made a Trigger On selection of Error push the lower bezel Error Type button and enter the parameters of interest on the resulting side bezel menu I2C SPI CAN and LIN Bus Trigger Data Matching Rolling window byte matching for I2C and SPI To use a rolli...

Page 145: ...ddress and rotate multipurpose knobs a and b as needed Set the address to don t cares X if you want to mask the address The data will be matched starting at the first byte without using a rolling window For CAN triggering occurs when the user selected data input matches the data and qualifier in the signal starting at the first byte Set the number of bytes to match the number of bytes of interest ...

Page 146: ... some key trigger parameters check the Trigger readout at the bottom of the display The readouts differ for edge and the advanced triggers 1 Trigger source channel 1 2 Trigger slope rising 3 Trigger level 0 00 V Edge trigger readout 130 DPO3000 Series Oscilloscopes User Manual ...

Page 147: ... looks for the B Event before triggering and displaying the waveform A and B triggers can and typically do have separate sources Use the Edge trigger menu to set up the A trigger first Then to use the B trigger 1 Push Trigger Menu 2 Push Type 3 Turn multipurpose knob a to select a trigger type of Sequence B Trigger This brings up the Sequence B Trigger menu DPO3000 Series Oscilloscopes User Manual...

Page 148: ... B Trigger After A Time Mode Auto Holdoff Push a side bezel button to select sequencing the B trigger after the A as Time or as Events Time a 8 ns B Events 1 Set to Minimum 5 Set the other Sequence Trigger parameters in the related side and lower bezel menus 132 DPO3000 Series Oscilloscopes User Manual ...

Page 149: ...Trigger Setup B Trigger After Delay Time The A trigger arms the instrument Posttrigger acquisition starts on the first B edge after the trigger delay time DPO3000 Series Oscilloscopes User Manual 133 ...

Page 150: ...izontal position are independent functions When you establish a trigger condition using either the A trigger alone or the A and B triggers together you can also use the horizontal position control to delay the acquisition by an additional amount When using the B trigger the A and B trigger types can only be Edge 134 DPO3000 Series Oscilloscopes User Manual ...

Page 151: ...the acquisition with Run Stop or Single Push Run Stop to start acquisitions The oscilloscope acquires repeatedly until you push the button again to stop the acquisition Push Single to take a single acquisition Single sets the trigger mode to Normal for the single acquisition DPO3000 Series Oscilloscopes User Manual 135 ...

Page 152: ...Adding and Removing a Waveform 1 To add or remove a waveform from the display push the corresponding front panel channel button You can use the channel as a trigger source whether or not it is displayed Setting the Display Style and Persistence 1 To set the display style push Acquire 136 DPO3000 Series Oscilloscopes User Manual ...

Page 153: ...Display Waveform Data 2 Push Waveform Display Mode Sample Record Length 10k Delay On Off Set Horiz Position to 10 Waveform Display XY Display On DPO3000 Series Oscilloscopes User Manual 137 ...

Page 154: ...Push Set to Auto to have the oscilloscope automatically determine a persistence time for you Set to Auto 6 Push Clear Persistence to reset the persistence information Clear Per sistence 7 To display the amplitude from one waveform against the amplitude from another push XY Display Then push Triggered XY from the side menu A data point from the first waveform specifies the horizontal location while...

Page 155: ...ne of the acquisition display settings Use infinite persistence for displaying unique signal anomalies such as glitches The XY Display mode graphs the data in fixed pairs of waveforms against one another You can use CH1 versus CH2 and REF1 versus REF2 On four channel models you can also use CH3 versus CH4 and REF3 versus REF4 When the XY Display is on an upper window appears that displays data ver...

Page 156: ...a 3 Turn multipurpose knob a and select Display Display 4 Push Graticule from the lower bezel menu Utility Page Display Backlight Intensity High Graticule Full Screen Annotation 140 DPO3000 Series Oscilloscopes User Manual ...

Page 157: ...and other data Use the Frame graticule with automatic readouts and other screen text when display features are not needed Quick Tips You can display IRE and mV graticules To do this set the trigger type to video and set the vertical scale to 143 mV division The 143 mV division selection is available in the coarse vertical scale settings for the channel when you set the trigger type to video The os...

Page 158: ... Push Utility 2 Push Utility Page Utility Page 3 Turn multipurpose knob a and select Display Display 4 Push Backlight Intensity Utility Page Display Backlight Intensity High Graticule Full Screen Annotation 142 DPO3000 Series Oscilloscopes User Manual ...

Page 159: ...ct the intensity level from the resulting side bezel menu Choices are High Medium and Low Low Setting Waveform Intensity 1 Push the front panel Intensity button This will bring up the intensity readout on the display DPO3000 Series Oscilloscopes User Manual 143 ...

Page 160: ...he intensity readout from the display Scaling and Positioning a Waveform Use the horizontal controls to adjust the time base adjust the trigger point and to examine waveform details more closely You can also use the Wave Inspector Pan and Zoom controls to adjust the display of waveforms See page 189 Using Wave Inspector to Manage Long Record Length Waveforms 144 DPO3000 Series Oscilloscopes User M...

Page 161: ...e the vertical controls to select waveforms adjust the waveform vertical position and scale and set input parameters Push a channel menu button 1 2 3 or 4 as many times as needed and the associated menu items to select add or remove a waveform DPO3000 Series Oscilloscopes User Manual 145 ...

Page 162: ...control settings It simulates what you will see when you next push the RUN button The oscilloscope uses the new settings for the next acquisition You may see a clipped waveform if the original acquisition went off the screen The math waveform cursors and automatic measurements remain active and valid when using preview Setting Input Parameters Use the vertical controls to select waveforms adjust t...

Page 163: ...ill also select or cancel that waveform selection 2 Push Coupling repeatedly to select the coupling to use Use DC coupling to pass both AC and DC components Coupling DC AC Impedance 1MΩ 75Ω 50Ω Invert On Off Bandwidth Full 1 Label More Use AC coupling to block the DC component and show only the AC signal Use Ground GND to display the reference potential DPO3000 Series Oscilloscopes User Manual 147...

Page 164: ...rt the signal Select Off for normal operation and On to invert the polarity of the signal in the preamplifier 5 Push Bandwidth and select the desired bandwidth from the resulting side bezel menu The set choices are Full and 20 MHz Additional choices may appear depending on the probe that you use Select Full to set the bandwidth to the full oscilloscope bandwidth Select 20 MHz to set the bandwidth ...

Page 165: ...ical scale adjustments Fine Scale Offset Position Probe Setup Deskew 9 Select Offset to enable multipurpose knob a to make vertical offset adjustments On the side bezel menu choose Set to 0 V to set the vertical offset to 0 V For more information on offset see Quick Tips See page 150 Quick Tips DPO3000 Series Oscilloscopes User Manual 149 ...

Page 166: ...w deskew correction for the probe attached to the selected channel This shifts acquisition and display of the waveform left or right relative to the trigger time Use this to compensate for differences in cable lengths or probe types Quick Tips Using Probes with the TekProbe II and TekVPI Interfaces When you attach a probe with the TekProbe II or the TekVPI interface the oscilloscope sets the chann...

Page 167: ... nominal DC voltage and the signal appears in the center of the screen 50 and 75 Ω Protection If you select 50 Ω or 75 Ω termination the maximum vertical scale factor is limited to 1 V div except that with a 10X probe the scale factor is 10 V If you apply excessive input voltage the oscilloscope automatically switches to 1 MΩ termination to protect the internal 50 Ω or 75 Ω termination For more de...

Page 168: ...cted bus Labeling Bus Signals To label a bus do the following steps 1 Push the appropriate front panel bus button 2 Push Label See page 79 Labeling Channels and Buses Bus B1 Parallel Define Inputs Thresholds B1 Label Parallel Bus Display Event Table 152 DPO3000 Series Oscilloscopes User Manual ...

Page 169: ...tating the Screen You can add your own text to the screen by doing the following 1 Push Utility 2 Push Utility Page Utility Page 3 Turn multipurpose knob a and select Display Display DPO3000 Series Oscilloscopes User Manual 153 ...

Page 170: ...ultipurpose knobs a and b 6 Push Edit Annotation from the side bezel menu 7 Turn multipurpose knob a to scroll through the list of letters numbers and other characters to select each desired character Alternatively use a US style USB keyboard to type in characters See page 48 Connecting a USB Keyboard to Your Oscilloscope To reposition the annotated text press the side bezel Position button and tu...

Page 171: ...hen analyze the results Select from features such as cursors automatic measurements statistics math and FFT Taking Automatic Measurements To take an automatic measurement 1 Push Measure 2 Push Add Measurement Add Mea surement Remove Measure ment Indicators More Bring Cursors on Screen Configure Cursors DPO3000 Series Oscilloscopes User Manual 155 ...

Page 172: ...urement and push OK Remove Measurement on the side bezel menu Quick Tips To remove all measurements select Remove All Measurements A symbol appears instead of the expected numerical measurement if a vertical clipping condition exists Part of the waveform is above or below the display To obtain a proper numerical measurement turn the vertical scale and position knobs to make all of the waveform app...

Page 173: ...he time between the mid reference default 50 amplitude point of two different waveforms See also Phase Rise Time The time required for the leading edge of the first pulse in the waveform or gated region to rise from the low reference value default 10 to the high reference value default 90 of the final value Fall Time The time required for the falling edge of the first pulse in the waveform or gate...

Page 174: ...easurement is made on the first pulse in the waveform or gated region Negative Pulse Width The distance time between the mid reference default 50 amplitude points of a negative pulse The measurement is made on the first pulse in the waveform or gated region Burst Width The duration of a burst a series of transient events and is measured over the entire waveform or gated region Phase The amount of ...

Page 175: ...ured over the entire waveform or gated region and is expressed as Positive Overshoot Maximum High Amplitude x 100 Negative Overshoot This is measured over the entire waveform or gated region and is expressed as Negative Overshoot Low Minimum Amplitude x 100 DPO3000 Series Oscilloscopes User Manual 159 ...

Page 176: ...gram method uses the most common value found above the midpoint This value is measured over the entire waveform or gated region Low This value is used as 0 whenever high reference mid reference or low reference values are needed such as in fall time or rise time measurements Calculate using either the min max or histogram method The min max method uses the minimum value found The histogram method ...

Page 177: ...e Mean The arithmetic mean over the first cycle in the waveform or the first cycle in the gated region RMS The true Root Mean Square voltage over the entire waveform or gated region Cycle RMS The true Root Mean Square voltage over the first cycle in the waveform or the first cycle in the gated region DPO3000 Series Oscilloscopes User Manual 161 ...

Page 178: ...d region Negative Pulse Count The number of negative pulses that fall below the mid reference crossing in the waveform or gated region Area Area measurement is a voltage over time measurement It returns the area over the entire waveform or gated region in volt seconds Area measured above ground is positive area measured below ground is negative Cycle Area A voltage over time measurement The measur...

Page 179: ...asurement reference levels or taking a snapshot Gating Gating confines the measurement to a certain portion of a waveform To use 1 Push Measure 2 Push More as many times as needed to select Gating from the resulting pop up menu Add Mea surement Remove Measure ment Indicators More Bring Cursors On Screen Configure Cursors DPO3000 Series Oscilloscopes User Manual 163 ...

Page 180: ...Analyze Waveform Data 3 Position the gates from the side bezel menu options Gating Off Full Record Screen Between Cursors Bring Cursors On Screen 164 DPO3000 Series Oscilloscopes User Manual ...

Page 181: ...measurements To adjust statistics 1 Push Measure 2 Push More as many times as needed to select Statistics from the resulting pop up menu Add Mea surement Remove Measure ment Indicators More Bring Cursors On Screen Configure Cursors DPO3000 Series Oscilloscopes User Manual 165 ...

Page 182: ...e bezel menu options These include whether to turn statistics on or off and how many samples to use for mean and standard deviation calculations Reset Statistics Snapshot To see all the single sourced measurements at one moment in time 1 Push Measure 166 DPO3000 Series Oscilloscopes User Manual ...

Page 183: ...ing pop up menu Add Mea surement Remove Measure ment Indicators More Bring Cursors On Screen Configure Cursors 3 Turn multipurpose knob a to select the Measurement Type of Snapshot 4 Push OK Snapshot All Measurements OK Snapshot All Mea surements 5 View results DPO3000 Series Oscilloscopes User Manual 167 ...

Page 184: ...Area 312 2μs 103 7μs 936 5μs 1 452μs 33 23 7 143 9 200 V 10 40 V 16 80 V 5 396 V 7 769 V 21 58mVs Freq Width Fall Duty Over Low Min Pk Pk CycleMean CycleRMS CycleArea 3 203kHz 208 5μs 1 144μs 66 77 7 143 7 600 V 8 800 V 19 20 V 5 396 V 8 206 V 654 6μVs 168 DPO3000 Series Oscilloscopes User Manual ...

Page 185: ...or example they are used in calculating rise and fall times 1 Push Measure 2 Push More as many times as needed to select Reference Levels from the resulting pop up menu Add Mea surement Remove Measure ment Indicators More Bring Cursors On Screen Configure Cursors DPO3000 Series Oscilloscopes User Manual 169 ...

Page 186: ... Levels Set Levels in Units Use High and Low reference to calculate rise and fall times High Ref a 90 0 Use Mid reference primarily for measurements between edges such as pulse widths Mid Ref 50 0 50 0 Low Ref 10 0 Set to Defaults 170 DPO3000 Series Oscilloscopes User Manual ...

Page 187: ...es To use cursors 1 Push Cursors This changes the cursor state The three states are No cursors appear on the screen Two vertical waveform cursors appear They are attached to the selected waveform Four screen cursors appear Two are vertical and two are horizontal They are no longer specifically attached to a waveform For example the first time you push Cursors the state might be off DPO3000 Series ...

Page 188: ...knob b you move the other cursor If you change the selected waveform by pushing the front panel 1 2 3 4 M or R button both cursors jump to the new selected waveform 3 Push Select This turns the cursor linking on and off If linking is on turning multipurpose knob a moves the two cursors together Turning multipurpose knob b adjusts the time between the cursors 172 DPO3000 Series Oscilloscopes User M...

Page 189: ...djustment for multipurpose knobs a and b Pushing Fine also changes the sensitivity of other knobs as well 5 Push Cursors again This will put the cursors into screen mode Two horizontal bars and two vertical bars span the graticule DPO3000 Series Oscilloscopes User Manual 173 ...

Page 190: ...rizontal cursors 7 Push Select This makes the horizontal cursors active and the vertical ones inactive Now as you turn the multipurpose knobs the horizontal cursors will move Push Select again to make the vertical cursors active again 174 DPO3000 Series Oscilloscopes User Manual ...

Page 191: ...ou can take timing measurements with cursors on digital channels but not amplitude measurements 9 Push Cursors again This will turn off the cursor mode The screen will no longer display the cursors and the cursor readout DPO3000 Series Oscilloscopes User Manual 175 ...

Page 192: ...ht corner of the zoom window When a bus is selected the readout shows the decoded bus data in the format you have selected hexadecimal binary decimal or ASCII depending on the selected standard The data value of that point is displayed in the cursor readout Δ Readout The Δ readouts indicate the difference between the cursor positions a Readout Indicates that the value is controlled by multipurpose...

Page 193: ...and horizontal cursors are present Using XY Cursors When the XY Display mode is on the cursor readouts will appear to the right of the graticule They include rectangular polar product and ratio readouts Using Math Waveforms Create math waveforms to support the analysis of your channel and reference waveforms By combining and transforming source waveforms and other data into math waveforms you can ...

Page 194: ...cedure for executing simple math operations on two waveforms 1 Push Math 2 Push Dual Wfm Math Dual Wfm Math FFT Advanced Math M Label 3 On the side bezel menu set the sources to either channel 1 2 3 4 or reference waveforms R1 R2 R3 or R4 Choose the x or operators 178 DPO3000 Series Oscilloscopes User Manual ...

Page 195: ...n the same way as on channel waveforms Math waveforms derive their horizontal scale and position from the sources in their math expressions Adjusting these controls for the source waveforms also adjusts the math waveform You can zoom in on math waveforms using the inner knob of the Pan Zoom control Use the outer knob for positioning the zoomed area See page 189 Using Wave Inspector to Manage Long ...

Page 196: ... a graph of the frequency domain of a signal as opposed to the oscilloscope s standard time domain graph You can match these frequencies with known system frequencies such as system clocks oscillators or power supplies 1 Push Math 2 Push FFT Dual Wfm Math FFT Advanced Math M Label 180 DPO3000 Series Oscilloscopes User Manual ...

Page 197: ...ertical Scale button repeatedly to select either Linear RMS or dBV RMS Vertical Units Linear RMS 5 Push the side bezel Window button repeatedly to select the desired window Window choices are Rectangular Hamming Hanning and Blackman Harris Window Hanning 6 Push the side bezel Horizontal button to activate multipurpose knobs a and b to pan and zoom the FFT display Horizontal 625kHz 1 25kHz div DPO3...

Page 198: ...e frequency resolution If desired use the zoom feature along with the horizontal Position and Scale controls to magnify and position the FFT waveform Use the default dBV RMS scale to see a detailed view of multiple frequencies even if they have very different amplitudes Use the linear RMS scale to see an overall view of how all frequencies compare to each other 182 DPO3000 Series Oscilloscopes Use...

Page 199: ...al Also use this window for equal amplitude sine waves with frequencies that are very close and for broadband random noise with a relatively slow varying spectrum Hamming This is a very good window for resolving frequencies that are very close to the same value with somewhat improved amplitude accuracy over the rectangular window It has a slightly better frequency resolution than the Hanning Use H...

Page 200: ...ackman Harris for measuring predominantly single frequency waveforms to look for higher order harmonics Using Advanced Math The advanced math feature lets you create a custom math waveform expression that can incorporate active and reference waveforms measurements and or numeric constants To use this feature 1 Push Math 184 DPO3000 Series Oscilloscopes User Manual ...

Page 201: ...Analyze Waveform Data 2 Push Advanced Math Dual Wfm Math FFT Advanced Math 3 Use the side bezel menu buttons to create custom expressions DPO3000 Series Oscilloscopes User Manual 185 ...

Page 202: ...el menu OK Accept button For example to use Edit Expression to take the integral of a square wave 1 Push the lower bezel Clear button 2 Turn multipurpose knob a to select Intg 3 Push Enter Selection 4 Turn multipurpose knob a to select channel 1 5 Push Enter Selection 6 Turn multipurpose knob a to select 7 Push OK Accept 186 DPO3000 Series Oscilloscopes User Manual ...

Page 203: ...reference waveforms NOTE 5 M reference waveforms are volatile and not saved when the oscilloscope power is turned off To keep these waveforms save them to external storage 1 Push Ref R This brings up the lower bezel reference menu 2 Use the resulting lower bezel menu selections to display or select a reference waveform R1 On 3 May 07 R2 Off R3 Off R4 Off DPO3000 Series Oscilloscopes User Manual 18...

Page 204: ...splay To remove a reference waveform from the display push the front panel R button to access the lower bezel menu Then push the associated button from the lower bezel menu to turn it off Scaling and Positioning a Reference Waveform You can position and scale a reference waveform independently from all other displayed waveforms Select the reference waveform and then adjust it with a multipurpose k...

Page 205: ...g Wave Inspector to Manage Long Record Length Waveforms The Wave Inspector controls zoom pan play pause marks search help you to efficiently work with long record length waveforms To magnify a waveform horizontally turn the Zoom knob To scroll through a zoomed waveform turn the Pan knob The Pan Zoom Control consists of 1 An outer pan knob 2 An inner zoom knob DPO3000 Series Oscilloscopes User Manu...

Page 206: ...e inner knob on the Pan Zoom control clockwise to zoom in on a selected portion of the waveform Rotate the knob counterclockwise to zoom back out 2 Alternatively enable or disable the zoom mode by pushing the zoom button 190 DPO3000 Series Oscilloscopes User Manual ...

Page 207: ...lay The upper portion of the display will show the position and size of the zoomed portion in the waveform within the context of the overall record Panning a Waveform While the zoom feature is on you can use the pan feature to quickly scroll through the waveform To use pan DPO3000 Series Oscilloscopes User Manual 191 ...

Page 208: ...n the knob clockwise to pan forward Turn it counterclockwise to pan backwards The further you turn the knob the faster the zoom window pans Playing and Pausing a Waveform Use the play pause feature to automatically pan through a waveform record To use it 192 DPO3000 Series Oscilloscopes User Manual ...

Page 209: ...versing the direction that you are turning the pan knob 4 During play up to a point the more you turn the ring the faster the waveform accelerates If you rotate the ring as far as it can go the play speed does not change but the zoom box quickly moves in that direction Use this maximum rotation feature to replay a portion of the waveform that you just saw and want to see again DPO3000 Series Oscil...

Page 210: ... criteria or you can manually mark each item of interest You can use arrow keys to jump from mark to mark area of interest to area of interest You can automatically search and mark many of the same parameters that you can trigger on Search marks provide a way to mark a waveform region for reference You can set marks automatically with search criteria You can search for and mark regions with partic...

Page 211: ...sh the next or previous arrow button to jump to an existing mark 2 Push Set Clear If no search mark is at the screen center the oscilloscope will add one 3 Investigate your waveform by moving from search mark to search mark Use the next or previous arrow button to jump from one marked location to another without adjusting any other controls DPO3000 Series Oscilloscopes User Manual 195 ...

Page 212: ...t works on both manually and automatically created marks To automatically set and clear delete search marks 1 Push Search 2 Select the search type desired from the lower bezel menu Search Off Search Type Edge Source 1 Slope Threshold 0 00V The search menu is similar to the trigger menu 3 From the side bezel menu turn on the search 196 DPO3000 Series Oscilloscopes User Manual ...

Page 213: ...ustments are needed Quick Tips You can copy trigger settings to search for other locations in your acquired waveform that meet the trigger conditions You can also copy search settings to your trigger Custom User marks are saved with the waveform when the waveform is saved and when the setup is saved Automatic search marks are not saved with the waveform when the waveform is saved However you can e...

Page 214: ... goes false or stays valid for or a user specified time Additionally you can define one of the inputs as a clock for synchronous state searches Setup Hold Search for violations of user specified Setup and Hold times Rise Fall Time Search for rising and or falling edges that are or a user specified time Bus I2C Search for Start Repeated Start Stop Missing Ack Address Data or Address and Data SPI Se...

Page 215: ...ure E is the USB flash drive plugged into the USB port on the front of the oscilloscope F is the USB flash drive plugged into the USB port on the rear of the oscilloscope Use multipurpose knob a to scroll through the list of files Use the Select front panel button to open and close folders Naming Your File The oscilloscope gives all files it creates a default name in the following format tekXXXXX ...

Page 216: ...have the same value for XXXX but the YYY values will be set to the different channels that were turned on when the Save All Waveforms was performed For example the first time you save a file that file is named tek00000 The next time you save the same type of file the file will be named tek00001 Editing File Directory Reference Waveform or Instrument Setup Names Give files descriptive names that yo...

Page 217: ...etup Recall Waveform Recall Setup Assign Save to Setup File Utilities 3 For waveform or setup files enter the file manager by pushing the side bezel menu To File item To File 4 Turn multipurpose knob a to scroll through the file structure See page 199 External File Structure DPO3000 Series Oscilloscopes User Manual 201 ...

Page 218: ... File Name Edit the file name the same way you edit labels for channels See page 79 Labeling Channels and Buses 7 Push the Menu Off button to cancel the save operation or push a side bezel menu OK Save item to complete the operation OK Save 202 DPO3000 Series Oscilloscopes User Manual ...

Page 219: ...veform To save a screen image 1 Push Save Recall Menu Do not yet push the Save button 2 Push Save Screen Image from the lower bezel menu Save Screen Image Save Waveform Save Setup Recall Waveform Recall Setup Assign Save to Setup File Utilities Save Screen Image 3 From the side bezel menu push File Format repeatedly to select among tif bmp and png formats File Format png DPO3000 Series Oscilloscop...

Page 220: ...this step to use a default name Edit File Name 7 Push OK Save Screen Image to write the image to the selected media OK Save Screen Image For information on printing screen images of waveforms go to Printing a Hard Copy See page 214 Printing a Hard Copy Saving and Recalling Waveform Data Waveform data consists of the numeric values for each point in the waveform It copies the data as opposed to a g...

Page 221: ... reference memories The oscilloscope cannot recall digital waveforms 3 Select one waveform or all waveforms 4 From the resulting side bezel menu select the location to save the waveform data to or to recall it from Save the information externally to a file on a USB flash drive Alternatively save the information internally to one of the two reference memory files on 2 channel model or one of the fo...

Page 222: ... to write and creates the smallest sized file Use this format if you intend to recall a waveform to reference memory for viewing or measuring The oscilloscope cannot save digital waveforms in an isf file format Spreadsheet File Format CSV Sets the oscilloscope to save waveform data as a comma separated data file compatible with popular spreadsheet programs This file cannot be recalled to reference...

Page 223: ...when the oscilloscope power is turned off To keep these waveforms save them to external storage Displaying a Reference Waveform To display a waveform stored in nonvolatile memory 1 Push Ref R 2 Push R1 R2 R3 or R4 R1 On R2 Off R3 Off R4 Off DPO3000 Series Oscilloscopes User Manual 207 ...

Page 224: ...rence waveform from the display 1 Push Ref R 2 Push the R1 R2 R3 or R4 lower bezel button to remove the reference waveform from the display R1 On R2 Off R3 Off R4 Off The reference waveform is still in nonvolatile memory and can be displayed again 208 DPO3000 Series Oscilloscopes User Manual ...

Page 225: ...asurement information It does not include communications information such as GPIB addresses To save the setup information 1 Push Save Recall Menu 2 Push Save Setup or Recall Setup from the lower bezel menu Save Screen Image Save Waveform Save Setup Recall Waveform Recall Setup Assign Save to Setup File Utilities DPO3000 Series Oscilloscopes User Manual 209 ...

Page 226: ...o one of the ten internal setup memories in the oscilloscope push the appropriate side bezel button To save setup information to a USB file push the To File button To Setup 1 To Setup 2 more 4 If you are saving information to a USB flash drive turn multipurpose knob a to scroll through the file structure See page 199 External File Structure 210 DPO3000 Series Oscilloscopes User Manual ...

Page 227: ...or push a side bezel menu Save to Selected File item to complete the operation 5 Save the file Save to Selected File Quick Tips Recalling the Default Setup Push the front panel Default Setup button to initialize the oscilloscope to a known setup See page 83 Using the Default Setup DPO3000 Series Oscilloscopes User Manual 211 ...

Page 228: ...ample if you have defined the save operation to save waveform data to a USB drive then each push of the Save button will save current waveform data to the defined USB drive 1 To define the Save button behavior push Save Recall Menu 2 Push Assign Save to button Save Screen Image Save Waveform Save Setup Recall Waveform Recall Setup Assign Save to Setup File Utilities 212 DPO3000 Series Oscilloscope...

Page 229: ... Save button Assign Save to Screen Image Waveform Setup 4 From now on when you push Save the oscilloscope will perform the action that you just specified rather than requiring you to navigate through the menus each time DPO3000 Series Oscilloscopes User Manual 213 ...

Page 230: ...dure Connect a Printer to Your Oscilloscope Connect your printer to a USB port on the rear or front panel of the oscilloscope Alternatively you can print to networked printers through the Ethernet port Set Up Print Parameters To set up the oscilloscope to print hard copies 1 Push Utility 214 DPO3000 Series Oscilloscopes User Manual ...

Page 231: ...r Orientation Landscape Ink Saver On Turn multipurpose knob a to scroll through the list of available printers Push Select to choose the desired printer To add a USB printer to the list plug the printer into the USB port The oscilloscope will automatically recognize most printers To add an Ethernet printer to the list refer to the next topic See page 217 Printing Over Ethernet DPO3000 Series Oscil...

Page 232: ...ct the image orientation portrait or landscape Landscape Portrait 6 Choose Ink Saver On or Off The On selection will print out a copy with a clear white background Ink Saver on Ink Saver off 216 DPO3000 Series Oscilloscopes User Manual ...

Page 233: ...Recall Information Printing Over Ethernet To set up the oscilloscope to print over Ethernet 1 Connect an Ethernet cable to the rear panel Ethernet port 2 Push Utility DPO3000 Series Oscilloscopes User Manual 217 ...

Page 234: ...sh Utility Page Utility Page 4 Turn multipurpose knob a and select Print Setup Print Setup 5 Push Select Printer Utility Page Print Setup Select Printer Orientation Landscape Ink Saver Off 218 DPO3000 Series Oscilloscopes User Manual ...

Page 235: ...umbers and other characters to find the first character in the printer name that you want to enter If you are using a USB keyboard use the arrow keys to position the insertion point and type in the printer name See page 48 Connecting a USB Keyboard to Your Oscilloscope ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789_ DPO3000 Series Oscilloscopes User Manual 219 ...

Page 236: ...me as needed Enter Character Back Space Delete Clear 9 Continue scrolling and pushing Select until you have entered all the desired characters 10 Push the down arrow key to move the character cursor down a row to the Server Name field Add Printer 11 Turn multipurpose knob a and push Select or Enter Character as often as needed to enter the name 220 DPO3000 Series Oscilloscopes User Manual ...

Page 237: ...ltipurpose knob a and push Select or Enter Character as often as needed to enter the name 14 When done push OK Accept NOTE If you have multiple printers connected to the oscilloscope at the same time the oscilloscope will print to the printer listed in the Utility Utility Page Print Setup Select Printer menu item DPO3000 Series Oscilloscopes User Manual 221 ...

Page 238: ... you have connected a printer to your oscilloscope and set up print parameters you can print current screen images with a single push of a button Push the printer icon button in the lower left corner of the front panel 222 DPO3000 Series Oscilloscopes User Manual ...

Page 239: ...he TekSecure function before you return the oscilloscope to general use The TekSecure function Replaces all waveforms in all reference memories with null values Replaces the current front panel setup and all stored setups with the default setup Displays a confirmation or warning message depending on whether the verification is successful or unsuccessful To use TekSecure 1 Push Utility 2 Push Utili...

Page 240: ... 4 Push TekSecure Erase Memory Utility Page Config Language English Set Date Time TekSecure Erase Memory About 5 Push OK Erase Setup and Ref Memory from the side bezel menu OK Erase Setup Ref Memory To cancel the procedure push Menu Off 224 DPO3000 Series Oscilloscopes User Manual ...

Page 241: ...Save and Recall Information 6 Power off the oscilloscope and then power it back on to complete the process DPO3000 Series Oscilloscopes User Manual 225 ...

Page 242: ...ls to help you efficiently analyze your serial bus These include digital views of the signal bus views packet decoding search tools and event tables with timestamp information The DPO3AUTO Automotive Serial Triggering and Analysis Module adds triggering on packet level information in serial buses used in automotive designs CAN and LIN as well as analytical tools to help you efficiently analyze you...

Page 243: ...leshooting tasks Taking Simple Measurements If you need to see a signal in a circuit but you do not know the signal amplitude or frequency connect the probe from channel 1 of the oscilloscope to the signal Then display the signal and measure its frequency and peak to peak amplitude DPO3000 Series Oscilloscopes User Manual 227 ...

Page 244: ...he display of the waveform When you are using more than one channel the autoset function sets the vertical controls for each channel and uses the lowest numbered active channel to set the horizontal and trigger controls Selecting Automatic Measurements The oscilloscope can take automatic measurements of most displayed signals To measure signal frequency and peak to peak amplitude 228 DPO3000 Serie...

Page 245: ...re Cursors 3 Turn multipurpose knob a to select the Frequency measurement If needed press Source from the side menu and turn multipurpose knob b to select the channel from which you want to measure Push OK Add Measurement from the side menu Repeat this process to select the Peak to peak measurement DPO3000 Series Oscilloscopes User Manual 229 ...

Page 246: ...Application Examples 4 Push Menu Off 5 Observe that the measurements appear on the screen and update as the signal changes 230 DPO3000 Series Oscilloscopes User Manual ...

Page 247: ...mplifier You have an audio generator that can inject a test signal at the amplifier input Connect two oscilloscope channels to the amplifier input and output as shown Measure both signal levels and use these measurements to calculate the gain To display the signals connected to channels 1 and 2 DPO3000 Series Oscilloscopes User Manual 231 ...

Page 248: ... Examples 1 Push channel 1 and channel 2 to activate both channels 2 Push Autoset To select measurements for the two channels 1 Push Measure to see the measurement menu 232 DPO3000 Series Oscilloscopes User Manual ...

Page 249: ...rs 3 Turn multipurpose knob a to select the Amplitude measurement from the side menu If needed press Source and turn multipurpose knob b to select channel 1 Push OK Add Measurement from the side menu Repeat this process to select channel 2 and again push OK Add Measurement from the side menu DPO3000 Series Oscilloscopes User Manual 233 ...

Page 250: ...0 mV 24 27 Gain dB 20 x log 24 27 27 7 dB Customizing Your Measurements In this example you want to verify that the incoming signal to digital equipment meets its specifications Specifically the transition time from a low logic level 0 8 V to a high logic level 2 0 V must be 10 ns or less 234 DPO3000 Series Oscilloscopes User Manual ...

Page 251: ... Indicators More Bring Cursors On Screen Configure Cursors 3 Turn multipurpose knob a to select the Rise Time measurement If needed press Source from the side menu and turn multipurpose knob b to select the channel from which you want to measure Push OK Add Measurement from the side menu DPO3000 Series Oscilloscopes User Manual 235 ...

Page 252: ... multipurpose knob Low Ref a 800 mV Rise time is typically measured between the 10 and 90 amplitude levels of a signal These are the default reference levels that the oscilloscope uses for rise time measurements However in this example you need to measure the time that the signal takes to pass between the 0 8 V and 2 0 V levels You can customize the rise time measurement to measure the signal tran...

Page 253: ...ok at a snapshot of the digital signal do this step 1 Push Single to capture a single acquisition This assumes that the oscilloscope will trigger with the current settings Now you want to measure the width of each displayed pulse You can use measurement gating to select a specific pulse to measure To measure the second pulse 2 Push Measure DPO3000 Series Oscilloscopes User Manual 237 ...

Page 254: ...h measurement If needed press Source from the side menu and turn multipurpose knob b to select the channel from which you want to measure Push OK Add Measurement from the side menu 5 Push More repeatedly until you select Gating from the popup menu 6 Select Between Cursors from the side bezel menu to choose measurement gating using cursors Between Cursors 238 DPO3000 Series Oscilloscopes User Manua...

Page 255: ...cation Examples 7 Place one cursor to the left and one cursor to the right of the second pulse 8 View the resulting width measurement 160 ms for the second pulse DPO3000 Series Oscilloscopes User Manual 239 ...

Page 256: ... In this example you have a noisy signal displayed on the oscilloscope and you need to know more about it You suspect that the signal contains much more detail than you can currently see in the display 240 DPO3000 Series Oscilloscopes User Manual ...

Page 257: ...suspect that noise is causing problems in your circuit To better analyze the noise 1 Push Acquire 2 Push Mode on the lower bezel menu Mode Sample Record Length 10k Delay On Off Set Horiz Position to 10 Waveform Display XY Display Off DPO3000 Series Oscilloscopes User Manual 241 ...

Page 258: ...Examples 3 Push Peak Detect on the side bezel menu Sample Peak Detect Hi Res Envelope Average 4 Push Intensity and turn multipurpose knob a to see the noise more easily 242 DPO3000 Series Oscilloscopes User Manual ...

Page 259: ...asizes noise spikes and glitches in your signal as narrow as 1 ns even when the time base is set to a slow setting Peak detect and the other acquisition modes are explained earlier in this manual See page 85 Acquisition Concepts DPO3000 Series Oscilloscopes User Manual 243 ...

Page 260: ...ape and ignore the noise To reduce random noise in the oscilloscope display 1 Push Acquire 2 Push Mode Mode Sample Record Length 10K Delay On Off Set Horiz Position to 10 Waveform Display XY Display Off 3 Push Average on the side bezel menu Average 244 DPO3000 Series Oscilloscopes User Manual ...

Page 261: ...ing reduces random noise and makes it easier to see detail in a signal In the example to the right a ring shows on the rising and falling edges of the signal when the noise is removed DPO3000 Series Oscilloscopes User Manual 245 ...

Page 262: ... a waveform To measure the ring frequency at the rising edge of the signal 1 Push channel 1 to select the channel 1 signal 2 Push Measure 3 Push Configure Cursors Add Mea surement Remove Measure ment Indicators More Bring Cursors On Screen Configure Cursors 246 DPO3000 Series Oscilloscopes User Manual ...

Page 263: ...ady selected Turn multipurpose knob a to select Hz 1 s as the unit of measurement 5 Push Cursors repeatedly until the two vertical bar cursors appear on the selected waveform 6 Place one cursor on the first peak of the ring using multipurpose knob a DPO3000 Series Oscilloscopes User Manual 247 ...

Page 264: ...amples 7 If the cursor readout says that the cursors are linked push Select to unlink them 8 Place the other cursor on the next peak of the ring using multipurpose knob b 248 DPO3000 Series Oscilloscopes User Manual ...

Page 265: ...amples 9 The cursor Δ readout shows the measured ring frequency is 227 kHz Triggering on a Video Signal The oscilloscope supports triggering on NTSC SECAM and PAL signals DPO3000 Series Oscilloscopes User Manual 249 ...

Page 266: ...cuit in a piece of medical equipment and need to display the video output signal The video output is an NTSC standard signal Use the video signal to obtain a stable display To trigger on the video fields 1 Push Trigger Menu 250 DPO3000 Series Oscilloscopes User Manual ...

Page 267: ...ype side menu until you select Video Video 4 Push Video Standard and turn multipurpose knob a to scroll through the standards until you select 525 NTSC Type Video Video Standard 525 NTSC Source 1 Trigger On All Lines Mode Auto Holdoff 5 Push Trigger On DPO3000 Series Oscilloscopes User Manual 251 ...

Page 268: ...d Fields Odd Fields If the signal had been noninterlaced you could choose to trigger on All Fields 7 Turn the Horizontal Scale knob to see a complete field across the screen 8 View results 252 DPO3000 Series Oscilloscopes User Manual ...

Page 269: ...Triggering on Lines To look at the video lines in the field 1 Push Trigger Menu 2 Push Type Type 3 Turn multipurpose knob a to scroll through the trigger type side menu until you select Video Video DPO3000 Series Oscilloscopes User Manual 253 ...

Page 270: ... Mode Auto Holdoff 4 Push Trigger On 5 Select All Lines To trigger on a specific line select Line Number and use multipurpose knob a to select the line number All Lines 6 Adjust Horizontal Scale to see a complete video line across the screen 254 DPO3000 Series Oscilloscopes User Manual ...

Page 271: ... You suspect that the relay contacts arc when the relay opens The fastest you can open and close the relay is about once per minute so you need to capture the voltage across the relay as a single shot acquisition To set up for a single shot acquisition 1 Adjust the Vertical Scale and Horizontal Scale to appropriate ranges for the signal you expect to see DPO3000 Series Oscilloscopes User Manual 25...

Page 272: ...3 Push Mode 4 Select Sample 5 Push Trigger Menu 6 Push Slope and 7 Turn the Trigger Level knob to adjust the trigger level to a voltage midway between the open and closed voltages of the replay 256 DPO3000 Series Oscilloscopes User Manual ...

Page 273: ...e single sequence When the relay opens the oscilloscope triggers and captures the event The Single sequence button disables auto triggering so that only a valid triggered signal is acquired DPO3000 Series Oscilloscopes User Manual 257 ...

Page 274: ...djust the vertical and horizontal controls to give you a preview of how the next acquisition might appear As you adjust these controls the current acquisition is repositioned expanded or compressed This preview is useful to optimize the settings before the next single shot event is captured When the next acquisition is captured with the new vertical and horizontal settings you can see more detail ...

Page 275: ... horizontal zoom function To look closely at the point where the relay contact first begins to open 1 Turn the Zoom knob 2 Turn the Pan knob to place the center of the zoom box close to where the relay contact begins to open 3 Turn the Zoom knob to magnify the waveform in the zoom window DPO3000 Series Oscilloscopes User Manual 259 ...

Page 276: ...Application Examples The ragged waveform and the inductive load in the circuit suggest that the relay contact may be arcing as it opens 260 DPO3000 Series Oscilloscopes User Manual ...

Page 277: ...pe Cable allows you to connect your logic analyzer to a Tektronix oscilloscope This enables communication between the two instruments For DPO3000 series oscilloscopes you also need a TEK USB 488 adaptor The Add External Oscilloscope wizard which is available from the TLA application System menu guides you through the process of connecting the iView cable between your logic analyzer and oscilloscop...

Page 278: ...Application Examples To do this 1 Select Add iView External Oscilloscope from the logic analyzer System menu 262 DPO3000 Series Oscilloscopes User Manual ...

Page 279: ...omething is not working You tell the master IC to send a message to the slave IC Then you expect to receive data back and an LED to light The light never goes on Where in the ten or so commands that were sent out did the problem occur Once you locate the problem location how do you determine what went wrong You can use your oscilloscope with its serial triggering and long record length management ...

Page 280: ...ameters and trigger Then you will search through each packet with the search mark functions NOTE Triggering on I2C SPI CAN LIN RS 232 RS 422 RS 485 and UART bus signals requires use of an appropriate DPO3EMBD DPO3AUTO or DPO3COMP Serial Triggering and Analysis Module 264 DPO3000 Series Oscilloscopes User Manual ...

Page 281: ...Application Examples 1 Connect the channel 1 probe to the clock line 2 Connect the channel 2 probe to the data line 3 Push Autoset DPO3000 Series Oscilloscopes User Manual 265 ...

Page 282: ... I2C bus in the resulting screen menus 5 Push Trigger Menu 6 Push Type to select Bus Enter trigger parameters in the resulting screen menus Type Bus Source Bus B1 I2C Trigger On Address Address 07F Direction Read Mode Auto Holdoff 266 DPO3000 Series Oscilloscopes User Manual ...

Page 283: ...type source and other parameters as relevant on the lower bezel menu and associated side bezel menus See page 189 Using Wave Inspector to Manage Long Record Length Waveforms 9 Jump ahead to the next search point by pushing the right arrow key Push it again and again until you see all the events Jump back with the left arrow key Do you have all the packets that you expected to have If not at least ...

Page 284: ...ristics of a digital signal in a digital circuit You are doing this to analyze the signal integrity of a signal For example you might be testing RS 232 bus signals Basic Strategy First you will display and acquire the digital signal Then you will look at both the analog and digital representations of the signal Finally you will search through each RS 232 byte with the search mark functions 268 DPO...

Page 285: ...n RS 232 bus signals requires use of the DPO3COMP Serial Triggering and Analysis Module See page 24 Application Module Free Trial 1 Connect the desired analog probe tip to the desired test point DPO3000 Series Oscilloscopes User Manual 269 ...

Page 286: ...lower bezel button use multipurpose knob a to select RS 232 and enter the parameters of the bus in the resulting screen menus 6 Push the Bus Display lower bezel button push the Bus and Waveforms side bezel button and push the ASCII side bezel 270 DPO3000 Series Oscilloscopes User Manual ...

Page 287: ...Trigger Menu Select the Bus trigger type Define what type of condition to trigger on such as the Tx Start Bit 9 Push Search push the Search lower bezel button and select On in the side bezel menu 10 Push Search Type Use multipurpose knob a to select Bus Push Search For and select the desired search such as for the Tx Start Bit DPO3000 Series Oscilloscopes User Manual 271 ...

Page 288: ...ation Examples 11 Push the Previous and Next Mark buttons to navigate through the record 12 Push Zoom and Pan to see the areas of interest and analyze the results 272 DPO3000 Series Oscilloscopes User Manual ...

Page 289: ...uency by 1 for each C above 30 C Instrument 10 mV div to 1 V div 5 mV div to 9 98 mV div DPO3054 and DPO3052 DC to 500 MHz DC to 400 MHz Instrument 2 mV div to 4 98 mV div 1 mV div to 1 99 mV div DPO3054 and DPO3052 DC to 250 MHz DC to 150 MHz Instrument 5 mV div to 1 V div 2 mV to 4 98 mV div 1 mV div to 1 99 mV div DPO3034 and DPO3032 DC to 300 MHz DC to 250 MHz DC to 150 MHz Instrument 1 mV div...

Page 290: ...h the input DC 50 Ω coupled and 50 Ω terminated 0 25 div at 2 mV div with the input DC 75 Ω coupled and 75 Ω terminated 0 5 div at 1 mV div with the input DC 50 Ω coupled and 50 Ω terminated 0 5 div at 1 mV div with the input DC 75 Ω coupled and 75 Ω terminated 0 2 div with the input DC 1 MΩ coupled and 50 Ω terminated 0 3 div at 1 mV div with the input DC 1 MΩ coupled and 50 Ω terminated DC Gain ...

Page 291: ...oad to ground Auxiliary output AUX OUT Vout LO 0 7 V into a load of 4 mA 0 25 V into a 50 Ω load to ground Safety Certification U S Nationally Recognized Testing Laboratory NRTL Listing UL61010 1 2004 Standard for Electrical Measuring Canadian Certification CAN CSA C22 2 No 61010 1 2004 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use European Union Complianc...

Page 292: ...Product Family Standard for Electrical Equipment for Measurement Control and Laboratory Use EMC Requirements Emissions EN 55011 Class A IEC 61000 3 2 IEC 61000 3 3 Immunity IEC 61000 4 2 IEC 61000 4 3 IEC 61000 4 4 IEC 61000 4 5 IEC 61000 4 6 IEC 61000 4 8 IEC 61000 4 11 Australia EMC Framework demonstrated per Emission Standard AS NZS 2064 Industrial Scientific and Medical Equipment 276 DPO3000 S...

Page 293: ...t button 21 54 61 77 84 228 Autoset undo 85 Aux In connector 72 Aux Out connector 74 Auxiliary readout 70 Average acquisition mode 89 B B trigger 134 B1 B2 button 95 96 121 Backlight intensity 142 Bandwidth x 148 Before Installation 1 Blackman Harris FFT window 184 BNC interface 14 Burst Width measurement 158 Bus button 95 96 121 display 71 102 103 menu 56 97 positioning and labeling 151 setup 96 ...

Page 294: ...27 Channel button 55 Channel readout 70 Channel vertical menu 147 Cleaning 12 Clearance DPO3000 8 Communications 40 45 Compensate probe 22 Compensate signal path 30 Confidential data 223 Connecting a USB keyboard 48 Connecting to a PC 40 Connectivity 2 40 45 Connector Aux Out 74 Probe Power 74 Video port 74 Connectors front panel 72 rear panel 74 side panel 73 Controls 49 Coupling 147 Coupling tri...

Page 295: ... Fall Time measurement 157 Falling Edge Count measure ment 162 FFT Blackman Harris 184 controls 180 Hamming 183 Hanning 183 Rectangular 183 File format 203 Internal File Format ISF 206 Spreadsheet file format CSV 206 File names 199 File system 199 206 Fine 58 Fine button 53 57 59 60 62 Firmware upgrade 33 Firmware version 39 firmware img file 33 Force Trig button 61 109 Frame graticule style 141 F...

Page 296: ...long record length waveforms 189 perform a functional check 19 power off the oscilloscope 18 power on the oscilloscope 16 print a hard copy 214 recall setups 209 recall waveforms 203 save screen images 203 save setups 209 save waveforms 203 search through and add marks to waveforms 194 select a trigger 116 select automatic measure ments 157 setup analog channels 76 setup bus parameters 96 setup in...

Page 297: ... Long record length 263 management 189 Low measurement 160 M M button 56 178 180 Main trigger 131 Mark 194 Math Advanced 184 button 56 178 180 Dual waveform 178 FFT 180 menu 56 waveforms 177 Max measurement 160 Mean measurement 161 Measure button 54 155 165 166 229 232 235 237 Measurement menu 54 Measurements automatic 155 cursor 171 defined 157 reference levels 169 snapshot 166 statistics 165 Mem...

Page 298: ...e 89 Period measurement 157 Persistence display 136 infinite 139 variable 139 Phase measurement 158 Physical layer bus activity 105 Pk Pk measurement 160 Play 191 Play pause button 59 193 Play pause mode 193 Pollution Degree DPO3000 9 P6139A 11 Portrait 204 216 Position bus 151 Horizontal 110 111 144 182 259 Vertical 145 Position and offset 150 Positive Duty Cycle measure ment 157 Positive Oversho...

Page 299: ... Reference levels 169 Reference menu 56 187 188 Reference waveforms 187 displaying 207 removing 188 208 saving 206 saving 5 M waveforms 188 Removing reference waveforms 188 208 Removing waveform 136 Rise Time measurement 157 Rise Fall trigger defined 119 Rising Edge Count measurement 162 RMS measurement 161 Roll mode 93 94 Rolling window data matching 128 RS 232 56 95 121 bus example 268 byte matc...

Page 300: ...4 Software optional 226 SPC 30 Specifications operating 8 power supply 16 SPI 56 95 121 SPI trigger 126 Spreadsheet file format CSV 206 Start an acquisition 135 Statistics 165 Stop an acquisition 135 SVGA Out 74 Switch power 62 T Table Event 103 104 TEK USB 488 Adapter 6 41 43 75 TekSecure 223 TekVPI 13 Temperature DPO3000 8 P6139A 11 Termination 148 Test button 54 TPA BNC Adapter 5 13 Transit cas...

Page 301: ...ing firmware 33 USB x xi 6 41 42 44 55 199 214 device port 75 host ports 63 75 keyboard 48 USBTMC 75 User marks 194 Utility button 26 28 31 55 139 142 153 214 Utility menu 26 28 55 62 139 153 V Variable persistence 139 Versatile Probe Interface 13 Version firmware 39 Vertical button 55 menu 55 146 Menu knob 62 offset 151 Offset 149 position 145 position and autoset 85 position and offset 150 Posit...

Page 302: ...87 removing 136 search and mark 194 user marks 194 zoom 190 Waveform baseline indicator 71 Waveform record 87 Waveform record view 66 Weight DPO3000 8 Width DPO3000 8 X XY cursors 177 display 138 139 Z Zoom 190 button 59 graticule size 192 Horizontal 259 knob 59 190 286 DPO3000 Series Oscilloscopes User Manual ...

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