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RT-Eye(TM) Serial Compliance and Analysis Quick Start User Manual

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1. differential Amplitude Lt T ER Differential De Jitter Autosed Voltage Emphasis amp BER Bock gon z Lindock Minimize Configure Preferences Single Run Y RT Eye Quick Start User Manual 2 Check Save MyTest if you want to save your last test configuration so that it can be recalled the next time you open the RT Eye application 3 Click m Yes to exit the RT Eye application and restore your oscilloscope settings to their state prior to starting RT Eye m No to exit without restoring the oscilloscope settings m Cancel to return to the RT Eye application RT Eye Quick Start User Manual Operating Basics ExiE RT Eye Save MyTest Do you want to restore the oscilloscope settings to the state prior to starting RT Eye ME ME cance Operating Basics RT Eye Application User Interface and Menu Structure File Modules Measurements Plots Results Log Utilities Help T Eye W x Single Ended ud y iic Start Stop Timing Amplitude Ea BrE Eye Widt bifferenti al dither AI Eye inl Voltage 5n BER Cle ar Resulte Rie High AC CM elec Les d Bit Rat TIE Jitt Am plitude Tr iT Time Skew Amplitude MI Emphasis zu Lc Single Run Y Menu Meas gt Select File Modules Measurements Plots Results Log Utilities Help Recall Setup Recall Save Recall Recent Preferences Dock Undock Minimize Exi
2. Eye H All Bits 31561mV 341564mV Eye H Non Tr Bie 432 04dmv 432 04mV Eye H Trans Bit 315561mv s156imv Rise Time O 44390Ui EET TIT Fall Time 0 1391U 0 0977UI Unit Interval t 0000UI 9592UI Reconfiguring Plots and Using the Bit Error Locator In the following steps you will 16 Select Plots Select elect 0 687201 315 51mV 432 gam 43165 51mV 0 215401 0 207 0U1 1 001501 eyy 44 Using the RT Eye Software TIE Jitter R Rathhub Curve ad eB Jitter All Siats Measurement i Min Ma Pk Pk St 0 00000 UI OG OODOO 0 000 NEL I 0 110101 0 0023 UI Bit Rate 2 500001ly s 2 9609Gb s 250216b4 5 7 133Mb s Make changes to display two plots an eye diagram plot with a PCIExpress NTbit mask and the associated waveform plot Use the Plots Refresh button to reconfigure the plots without sequencing again View the mask hits in the eye diagram plot Use the Bit Error Locator function to see the mask hits sample points in red on the waveform Result Sur Measurement Mean Min Eve Width 0621201 0 6212UI Ewe H All Bite 687 64mY 687 64m Ewe H Non Tr Bit 749 3dm 75a 34mV Ewe H Trans Bits S87 64mV 537 64mV Rize Time 0 1779UI 0 102001 Fall Time 0 0952 Ul Unit Interval 1 000008 0 9985 wil File Modules Measurements Plots Results W AJI Stats bul Max 0 6212UI 637 64mV T7548 24m 5987 64m 024345 Ul 0 250 Ul 10018LlI
3. Unit Internal Y 4 Click the Time Units drop down box and select Unit Interval cycle duration of the recovered clock or Seconds 5 To view details of a specific measurement click Details The Results Details window displays File Modules Measurements Plots Results Log Ulilities Help KOM RT Eye Ser j hrsis Jitter Total TD hd xL ur Stan Stop Lover Lim Upper Lim Status Ea E Export To CSV Resull Statistic Fopulaton TJ Mean StdDew 0000 hi ax D 31423 ul Min S 0 34149 Ul 0 0000 UI Clear Result Summary Single Run Unitintewal 6 From the Select Measurement drop down list select the measurement for which you want details 7 Read the details of your measurement in the window RT Eye Quick Start User Manual TJ Mean StdDey LET D 31aaul Min 0 3133 Ul Pic PE 0 0000 Ul Result Statistic Eye Opening BER 0 6851U1 Total Jitter SER O3149U Random This Acq Deataministic 0 2521UI Data Dapendent 0 41300 0 0824Ul 0 0200U Feriodio Duty Cycle Population High Amplitude Low Aum plitude De Emph asis TIE Jitter Jitter BER Jitter Eye Opening Jitter Deterministic DJ Jitter Total TJ Jitter t BER All AcGs 0 025101 Upper Lim Status 0 3149 idus 11 02521u1 0 120001 0 0021UI 0 0200UI 1 Show Flot Export we Time Units Unit Internal Y Single Run Setial Anahysis Stan St
4. Label Offset Termination Coupling Bandwidth Probe Cal Deskew Attenuation Zoom Setup Zoom Graticule Size 4 Connect the probe calibration signal to the probe RT Eye Quick Start User Manual Masks Math Utilities Help Tek Secure Erase Set Time amp Date GPIB Configuration LAN Server Status External Signals Instrument Celbration Instrument Diagnostics Deassion Multipurpose Knobs User Preferences Option Installation Status Temp Calibrate Getting Started ied Fle Edit Vertical Horiz Acq Trig Display Cursors Measure Masks Math Utilities Help Tek Stopped Single Seq Channel Probe Status Initialized Clear Probecal Calibrate Probe Close 10 RT Eye Quick Start User Manual Operating Basics Starting the RT Eye Application 1 Start the application E For non B or non C model oscilloscopes select File gt Run Application gt RT Eye Serial Compliance and Analysis m For B and C model oscilloscopes select App gt RT Eye Serial Compliance and Analysis The RT Eye application displays in the lower half of the screen RT Eye Quick Start User Manual Operating Basics Fle Edit Yerbcal Horizj amp cq Trig Display Cursors Measure Masks Math Lkilties Help Reference Waveforms gt 10 May 05 18 25 07 Instrument Setup Recall DeFault Setup E f as Aat Run Application
5. RP IV Bele Cle M H Q IV Mog IV Conventions Used in this Manual sos aiebat denuo four d ntt rat tl ub I enatewsau ecw dlarerenina Uno ac e ph AREE IV eui PET he ne ee he i ae eee ee ee en ee ee ee ee 1 WR cc 1 Using Compliance Modules RR T T daenieads 1 ESAS PIV COND TO eenean a a E EE A E N E NES 2 Minimum Required System Configuration au ou aot pa ao OPI RR RUE U E taU bi bl Ro usse qu DIU toque dA 2 Other Requirements and Restrictions sss Henne 4 VSM ACOE SOOS D MP 5 Installing the Application nnannnnennnnnnnnnnnnnunnrnnsnrnrnrrrnrrrrerrrrnrrrrsrrrrrrrrrsrrrerrrrrrrrrerrrrerrrrrrrreni 5 Connecting 16 the Device Under TeSt seo onte toten opa lad EEO EE Ua Ra ETE hind pau 6 Typical Probing Configurations nnueesssnnnnnnueesssrrrnrrrrrrrrrrrrrrrrnrrrrrrrrrrrrrrrrrrrrererrrrrrrreee 6 Calibrating the Oscilloscope and Probes nnneeessnnnnnnneesnrrrrnnneresrrrrrrrrrrrnrrrrrrrrrrerrrrrrrrrrerrrrrrrrr 9 wering Bas ee aaa E E E A E E EEE E EE E E E E E E 11 ainne R ats Oo ADDICION sarira ot dkpibenda E E E E E EE EEE E EE MIN DUE 11 Defining Preferences TEC CETTE T TT 12 Hiding and Returning the RT Eye Application 0 ccc cece cece eee eee mmm 14 Minimizing and Maximizing the RT Eye Application sssssssssssss mme 14 Docking and ndocki
6. 0 0028U Bit Rate 2 500060b s 2 40586b s 2 5027 6b s 0 9418Mb s UnitIntemal Single Run Mode enu Log gt VWorst Case Log Utilities Help EO pT Eye x File Modules Measurements Plots Results Config File Names Serial Analysis ty ment kdax Wim Sre1 Start Stop Eye Widt chi Eve WidthCh1Max1 Eve widthc 3 Eve Heigh chi Eve HeightChihiaxt Eye Heighit Eye Height Non Transition Bit Chi Eve Height Non Transition Bitthitdaxt Eye Height Clear esate Eye Height Transition Bits Chi Ewe Height Transition BitsCh1 bi z1 Eye Height Rize Time Chi Rize T TL RE E Rize Timet Fall Time Chi Fall TimeChiM zx Fall Time Unit Inte rral Chi Unit Interval Ch1M ax Unit Inte lm Wode Ei pcc c Single Run Y lenu Log gt Worst Case RT Eye Quick Start User Manual 10 Click Off Using MyTest Using the RT Eye Software File Modules Measurements Plots Results Log Utilities Help Eye x Setial Anabysis Cantig File Names Worst Case Waveforms Stan Stop Log Log Directory Select ow EM modules erialAn ahysisueavetonmms Browse Purge the log files in the selected directory Clear Result Mode Single Run ad You can use the MyTest feature to save and recall your current settings This allows you to recall your customized setup at any time and display a Result Summary window with a single click of a button Saving MyTest To save your settings at any time perform the following procedure 1
7. Application Examples File Edit Wertical Hori Acq Trig Display Cursors Measure Macks path IE utilities Help Buttons Restore Application RT Eye Serial Compliance and Analysis CROCE a RT Eye Welcome Differentia a Run Myr Go Eye Width Eug utosat n show this dialog at startup at meee Configure gt SS J f T BER TIE Jitter EE Limits Eye Width Ewe Height Amplitude Configure Serial Analysis start stop Cleat Results hdode Single Run Y Serial Analysis Start Sto p Clear Results hdode Single Run Y 81 Application Examples 82 RT Eye Quick Start User Manual Index A Accessories standard 5 Application directories location 21 Application Examples 68 Application installation 5 Application set up 22 Autoset Summary dialog window 13 B Bandwidth system 6 Bit Error Locator 49 C Calibration of oscilloscope and probes 9 Clock Recovery 60 See also Configuring Measurements Closing the application 18 Compatibility 2 Compliance modules 1 Configurations probing See Probing configurations typical Configuring Measurements 53 Clock Recovery Bit Rate 61 Const Clk Mean 61 Const Clk Median 61 Damping 61 Industry standard method 60 Nominal Data Rate 61 PLL Order 61 PLL Standard BW 60 PLL User BW 61 Standard b s 60 User BW 61 User defined method 61 General Config 63 Enable worst case logging 63 General Config Window
8. Keyboard You will need to use a keyboard to enter new names for some file save operations Using Accessories There are no standard accessories for this product Installing the Application For information on how to install the RT Eye application refer to the Optional Applications Software on Windows Based Oscilloscopes Installation Manual that shipped with your application This manual contains the following information RT Eye Quick Start User Manual Checking for available applications compatible oscilloscopes and relevant software and firmware version numbers Using the five time free trials for applications Applying labels for a newly authorized option installation keys Installing application software Enabling applications Downloading updates from the Tektronix Web site Getting Started Connecting to the Device Under Test You can use any compatible probes to connect between the device under test DUT and oscilloscope AN WARNING To avoid electrical shock and equipment damage refer to the General Safety Summary at the beginning of this manual and the safety summaries in your oscilloscope and probe user manuals Power off the device under test before you attach probes Do not touch exposed conductors except with the properly rated probe tips Refer to your probe manual for proper use To ensure that the bandwidth is adequate for rise time measurements your probe and oscilloscope combination must have a system ban
9. Pk Fk Status I Show Flot Ewe Width 0 6 1 1 01 0 6683 Ul 0 6933 Ul 0 0000 Export Ewe H All Bits 575 38mv 7538mv S75 38mv O 0000V To CSV Eye H Non Tr Bits 5985 05mv O9505mv O85 05mV 0 0000 Ewe H Trans Bits 5 75 38mv 575 335mv 575 35mV 0 0000 Details Rise Time 0 1804UI 0 1531U O 2105UI 0 057301 Fall Time 04777U 0 1585U 0 20310 0 0546Ul 5 Unit interval 10000U 0 9990U 1 0013UI 0002301 ime Units Bit Rate 25001 Gb s 2 466050b s 2 502560b s 5 6762Mb s Unit intemal Y m RT Eye Quick Start User Manual 9 Select Jitter BER from the Select Measurement drop down box 10 View the details of the Jitter BER measurement RT Eye Quick Start User Manual RT Eye Plot Summary g amp amp ec EL E3 OSS Diagram Vc it g em wv Eye Bathive Curve NE Jitter Histogram hits Jitter i BER Ure Application Examples File Modules Measurements Plots Results Log Utilities Help Result Details S elect Measurement Jitter BER Resull Slatistic This Aog All ACY Lower Lim Upper Lim Status Eye Opening amp amp BER O6S33Ul OOseSUl 3 Total Jitter BER O3607UI 0 3507Ul Random 0 011101 00111Ul1 Deterministic 0 2Z379UI 0 2379UI Data Dependent 0 130801 0 EU Ferlodie DOOU OD350Ul Duty Cycle D OO2z0UI OOO2O0Ul Population f Show Flot at CSV Summary Time Unit Unit intemal Y Single Run 71 App
10. TIE Jitter Ditferential Voltage Rise BR Rate High Time z Amplitude Low Amplitude Modules Measurements Plots Results Log Ulililies Help Serial Analysis Star Shop EE Emphasis amp BER Clear Results TIE Jitter panied Amplitude Single Run Ditterential her Jitter Timing were seer PUT DLT OG NN Eye Width Differenti al Eye Height Voltage High oo ES Fall Time Meas Selact 45 Using the RT Eye Software Selecting Plots You can display up to four plots depending on your measurement selections To select the plots for display perform the following procedure 1 Click Select Plots or select Plots gt Select 2 Click Select if the tab is not active 3 In the Measurement drop down boxes select up to four measurements that you want plotted 4 Inthe Plot Type drop down boxes select the plot type for each measurement that you selected Note that it is possible to select a measurement for which there is no plot 46 File Modules Measurements Plots Results Log Ulililies Help Ditferential n T iminig MM t Amol tU Ta nee renee eee e Jitter Eye Width Differential De Jitter Autoset Eve Height Voltage Emphasis amp BER Rise High Select Bit Rate TIE Jitter 3 Time Amplitude Plots E T Configure Amplitude z Single Run Log Utilities Help ya ER x File Modules Measurements Plots Results Start Stop Plet Type Plots Di
11. 3 Select Measurements gt Configure gt Source 4 Selectthe source type For this example select Live 5 Select your sources from the D D drop down box The Autoset controls in the following steps are available only when the source type is Live 6 Click Vertical Scale to autoset the waveforms to display full screen vertically based on the amplitude of the Sources T Click Horizontal Resolution to autoset the time base to the necessary horizontal resolution and record length to ensure accurate measurements 8 Click Vertical amp Horizontal to autoset both the vertical scale and the horizontal resolution The following procedure configures the source for a differential probe type 1 Select Measurements gt Select The Select window displays 54 Lua Wizard Run MyTest Eve Width Eye Height Time A Fall Differential Time Shew Source Reprieve Source Type Select J D D Liwe Chi Cha Chi Ch4 Ch2 Ch N che cha Commonmode D D y2 Smar Gating Clock Recovery Rise Save MyTest Jitter ees Population General Config Mode Gating Clock Recowery Jitter Population General Contig File Modules Measurements Plots Results Log Uliliies Help T Eye x SHE Anahysis Star Ste P Clear Result Configure Ta nlsi A a adl Serial Analysis Stan Sho p Clear Results 4 Ihr Auloset L f Single Run Y File Modules Measu
12. Log Utilities Help Serial Analysis Sho Plot 7 Start Stop Status _ Export ea n 0 0000 To CSV 0 0000 Clear Result 0 0000 Detail Beed 0 146501 0 161701 0 0022Ul Time Units Mode Bit Rate z50006h s 7 4060 Gb 2 amp YxX2Gb s 7 13 amp 83Mb s HETLBELCTCE ad Single Run RT Eye Quick Start User Manual 49 90 17 Make the following changes m Change the second measurement to Eye Width m Change the Plot Type toWaveform m Change third and fourth measurements to None 18 Click Configure 19 Click 1 20 Click Browse 21 Locate and select the PCI Express Directory in theMasks directory 22 Click Open File Modules Measurements Plots Results Log Utilities Select Configure Plot Type Plots Display Eve Width Ewe Diagram Y Eye Width Waveform None Hone None None File Modules Measurements Select Contigue Plots Results Log Ulilitles Select Measure ment a oc EN Non None None Hone Waveform Ethernet FED hh Fibre Channel MS InfiniBand ee t Sas SATA E Seal Rapidio Ej Readme a uzer msk Serial Analysis Start Stop EN Cleat Results a Mode Single Run Y Help icationsitdsrt eyeum askewser mak Moda Single Run RT Eye Quick Start User Manual 23 Select PCETxNTbit msk 24 Click Open The mask file is opened and Mask is toggled to On if it was Off 25 Click Select 26 Click Refresh The r
13. Select Measurements gt Save MyTest Your current set up is saved as My Test To save your settings when exiting the RT Eye application perform the following procedure 1 Select File gt Exit The Exit RT Eye dialog window displays RT Eye Quick Start User Manual File Modules Measurements Plots Results Log Uliliies Help KOM pt rye eet Select Setial Analysis Configure b forst Case Wavelorms Stat Stop Limits Log Directory Wizard select Run MyTest Wmodules SerialAn alysisuwavetorms files in the selected directory Clear Result Wode Single Run File Modules Measurements Plots Results Log Ulilities Help Recall Default Serial Anabysis Recall Worst Case Waveforms Stan Stop Save Log Directory EA E j M Select Recall Recent E WmodulesS erialAn ahisisuavetorms Browse Preferences Clear Result Cock Purge the log files in the selected directory Undock Minimize Miode Single Run 43 Using the RT Eye Software 2 Check Save MyTest 3 Click m Yes to restore the oscilloscope settings when you exit the application No to exit without restoring oscilloscope settings Cancel to cancel the exit your current setup will not be saved Running MyTest To run MyTest at anytime perform the following procedure 1 Select Measurements gt Run MyTest The application restores the saved configuration takes the measurements and displa
14. Test uf File name Save as byoe C Ed Save TIFF imaaes nr Cancel RT Eye Quick Start User Manual Using the RT Eye Software 1 Setup the plot window as you want it to A3 RT Eye Piot Dace 00 print zoom cursors and so on Vert Cursor t 250 3ps 6 248 ps At 499 ps Horiz Cursor Vi EFRRTI Vi 481 6m AW 945 2 mY 7 ch nn 5 ag mech eo i 400ps 300ps 200ps 100p Ops 200ps J00ps 400 ps 2 Click the print figure icon 3 To print the plot as it appears click Print Preview RT Eye Plot Details Print The Print dialog box for your printer Pagesetup Zoomin Zoo Gut Cem opens RT Eye Quick Start User Manual 33 Using the RT Eye Software T pnt ei settings that you want and click OK Frinter N ame Mekprn qb582r1 4d Properties Status Fleady Type Tektronis Phaser 740 Plus Where B58 L2 Grid L14 Comment Phaser 740 duplex B58 L2 Grid L14 Print to file Print range Copies Al Pages fom 7 Number of copies Selection HEP pp aT _ cm Viewing Results You can view the statistics for your measurements in two ways amp Summary view shows the current data for all the measurements that you selected m Detail view shows the following statistics for each measurement population mean standard deviation maximum minimum and
15. mV 600 RE 481 6mV 4000s 300gs 200gs 100gs Ops 100ps 200ps 300gs 400ps DV 929 2 mV 3 Click a portion of the zoomed waveform RT Eye Plot Details E Ini x to further zoom in or click and drag a ju EG 22 pw Bm Er B Ji EH aes box around the area Vert Cursor t 250 3ps t 248 7 ps t 499ps Horiz Cursor Y A73 6mV V 481 6 mV re Te z eae AV 955 2mV Eye Diagram Voltage mV 4 Click this icon to select the zoom out tool U Wi S SLPw EZ 28 RT Eye Quick Start User Manual Using the RT Eye Software 5 Click the waveform to zoom out RT Eye Plot Details If you zoomed in more than once on the u amp fm r BB E v amp waveform clicking the waveform will i Vert Cursor zoom out in equal steps t 250 dps t 248 7 ps At 499 ps d 400 Horiz Cursor V E TREO V 481 6mV Tt an 200ps 150ps 100ps 50ps Ads 509s 100ps 150ps AN 339 2 mV IW Bu cltace mv Eye Diagram V e 6 Click this icon to select the zoom horizontal axis tool Rd ri S SR IE ux ES A T Click an area of the waveform to zoom RT Eye Plot Details the horizontal axis by a factor of two centered around the area clicked but Wert C retain the scale of the vertical axis es 250 3ps E 2 t 248 7ps NOTE An alternative zoom function is to SE At 499ps T m D click and drag a box around the area that you Og wh m a
16. ps 4DU 3ps 942 4415 Start stop Measurement 3 Eye Width n 82 Save MyTest Fall Time 0 201 Init DE Pa B 3 A onm d Preferences Q 20mV 43025mv 430 20mV 0 0000V Details 978ps 38 018ps 101 58ps 63 558ps Undock B17 ps 37 018ps 80 496ps 42 479ps Time Unit ITE 1G6b s 25020Gb s 5 8856Mb s Seconds Single Run Y Serial Analysis Sette Do you want to restore the oscilloscope settings Pa oes Eye H Non Trbit 744 Clear Results to the state prior to starting RT Eye Ewe H Trans Bits 5 gs ik Rise Time Unit interval art Rate Single Run Y Reference Waveforms Instrument Setup Recall Default Setup Run Application DVI Compliance Test Solution Ethernet Compliance Test Software fate Seiti Mter Analysis Advanced eaten miter Analysis Essentials l RT Eye Serial Compliance and Analysis Export Setup Select For Export Export 1 Recent Salua Fle 1 RT Eye Quick Start User Manual For B and C model oscilloscopes select App gt RT Eye Serial Compliance and Analysis The RT Eye Welcome dialog box displays 50 Click Run MyTest The application takes the measurements and displays the results in the Result Summary window 51 If the RT Eye Welcome window did not appear then select Measurements gt Run MyTest The application takes the measurements and displays the results in the Result Summary window RT Eye Quick Start User Manual
17. using 45 Configuring See Configuring Measurements Detail View 35 Displaying the measurement window 45 Exporting to CSV file 35 Selecting 45 Selecting all 45 Selecting Probe Type 45 Turning off or on 45 Menu structure 20 Minimizing and maximizing the application 14 Minimum requirements 2 Modules compliance 1 MyTest 43 Running 44 Running from the menu 44 Running from the Welcome window 44 80 Saving from the menu 43 80 Saving when exiting 43 O Oscilloscope calibration 9 P Plot Summaries Cursor functions See Cursors Display full screen 27 Display in lower half of screen 26 Display in upper half of screen 26 Grid display 31 Viewing 25 Viewing details 27 Zoom function See Zoom Plots Configuring See Configuring Plots Exporting 31 Printing 32 Reconfiguring See Configuring Plots Selecting 46 From menu 46 Measurement to be plotted 46 Plot type 46 Using button 46 Population configuring 63 See also Configuring Measurements Preferences defining 12 Autoset Summary dialog window 13 High performance eye rendering 13 Welcome window 13 Probe calibration 9 Probe deskew 8 Probe type Selecting in Wizard 24 Probing configurations typical 6 One P73XX differential probe 7 One P73XX SMA differential probe 7 Two P72XX single ended or P73XX differential probes 7 Two TCA to SMA adapters 6 R Ref Levels 56 Configuring See Configuring Measurements RT Eye Quick Star
18. DVI Compliance Test Solution Deve Ethernet Compliance Test Software Page Setup y Print Preview Jitter Analysis Advanced Jitter Analysis Essentials Print Ctrl P cd RT Ey amp Serial Compliance and Analysis a Export Setup Select for Export b Export I Recent 59bup mei Minimize Chri4 M Shutdown File Edit Vertical Horiz Acq Trig Display Cursors Measure Masks Math Utilities Help Buttons T Eye Serial Compliance and Analysis Fle Edit Vertical Horz Acq Trig Display Cursors Measure Masks Math Utilities Help Tek Stopped Single Seq File Modules Measurements Plots Results Log Utilities Help KC Eve x Serial Analysis Fiobe Type Differential Sto P Eye Width Differential De Jitter Autasel EN Eye Height Voltage Emphasis i BER Clear Results Rise High Bit Rate s TIE Jitter Time Amplitude das mase Configure Time Amplitude Single Run emrMeas Selet o Il Timing IM M Amplitude SSS a 11 Operating Basics File Modules Measuremerz EU RT Ey E x 2 If the RT Eye Welcome dialog box OT Ewan l Fye Welcome displays click Cancel TUUM 0 mnm e Start stop S Run MyTest xoa Eye Width i Eye Height EM Run Aizaid Clear Results z Time Single Run ad l show this dialog at startup Defining Preferences You can set some preferences that will help File Modules Measurements Plots Results Loc T m you use the application mo
19. To set up clock recovery as a phase locked loop with the bandwidth based on an industry standard method perform the following quld procedure i 1 Click Clock Recovery E Const Cik Median 4 PLL Standard Biv A PLL User BW iss File Modules Measurements Clock Recovery The Clock Recovery window displays 2 Click the Method drop down box and select PLL Standard BW 3 Select the standard to which you want to test from the Standard b s drop down box File Modules Measuremerts Sour R f Levels Sman Gating Clock Fec osere Clock Recovery hiselhod PLL Standard Bii bd Hominal Data Rate 60 Plots Results Log Source Ref Levels Sman Gating Clock Recowers Jitter Population General Contig N Plots Results Wilities Help Seral Analysis Start Stop Clear Results Mode PLL Loop EW Standard brs PCI E 2 56 Single Run Y BA GEN2 5 0G 00BaseT 125M 4394b S400b g1 5M 1384b S800b 883 0M 1384b S1600b 1 2666 FC133 132 8M FC268 295 8M PCIE 2 56 Serial Analysis Stan Sto p Clear Results Inm E Single Run Y RT Eye Quick Start User Manual Click the PLL Order drop down box and select between a first order or second order loop If you select Second for the PLL Order click the Damping control and enter a value for the damping ratio of the PLL Normally the clock recovery software automatically determines the bit rate of the waveform To explic
20. Viewing Results 34 W Waveforms Accessing the Config controls 41 Browsing to a log file 41 File names 42 Logging worst case 41 Opening a worst case file 42 Purging worst case files 42 Turning off logging 42 Turning on logging 41 Web sites relevant iv Welcome window 13 Wizard Setup See Setup Wizard Z Zoom 28 10096 icon 29 Horizontal 29 Horizontal multiple times 29 In 28 In multiple times 28 Out 28 Out multiple times 29 85
21. a Limits Module You have taken measurements viewed plots and added an industry standard mask to your eye diagram Now you will create a limits module to apply a limit to the TIE Jitter measurement taken previously 22 Select Measurements gt Limits File Modules Measurements Plots Results Log Utiities Help RTEye x Select Configu Select Serial Analysis Select Sub plot Configure b selec Start Stop Limils y Wizard gram Refresh Eve Wid Run MyTest ere E TIE Jitter v Histogram Y Clear Results TIE Jitta Moda Jitter amp BER Bathtub Curve Single Run Y Plots gt Select 74 RT Eye Quick Start User Manual Application Examples 23 Click New yo 3 The RT Eye Limits Editor window opens Limits Limits File Editor EE Start Stop Clear Results Limits File j CATekApplicationstdsit eyelmod ILES Bronce Mode Single Run Y 24 Select TIE Jitter from the Measurement RT Eve Limits Editor i E xi drop down box File Add DIS Fed Measurement Statistic Lower Lim Upper Lim Differential Amplitude High Amplitude Low Amplitude CM Voltage AC CM Voltage De Emphasis Eye Opening Total Jitter Deterministic Jitter TIE Jitter mode validate Compact Single Run RT Eye Quick Start User Manual 75 Application Examples 16 25 Select Min from the Statistic drop down box 26 Enter 60ps in the Lower Lim box 27 Click to add another mea
22. displaying the 63 Limit Amplitude measurements 63 RT Eye Quick Start User Manual Limit Rise Fall measurements 63 Jitter 61 Arbitrary pattern 62 BER 62 Jitter window displaying 62 Length 62 Pattern 62 Population 62 Repeating pattern 62 Type 62 Window Length 62 Population Limit by Acquisitions 63 Limit by Measure ments 63 Limit value 63 Population Limit toggling 63 Population Window displaying 63 Ref Levels Autoset Accessing Ref Levels window 56 Setup 56 omart Gating 57 Accessing Smart Gating window 57 58 Button Smart Gating 58 Centered Analysis 59 Clock Recovery setting up 58 Cursors 58 Enable Scan Clock Recovery 59 Gating Units 58 Length Analysis 59 60 Length Clock Recovery 58 Same as Clock Recovery Window Analysis 59 scan Incr Clock Recovery 59 Scan to End of Record Clock Recovery 59 Index Scans Clock Recovery 59 Start Analysis 60 Start Clock Recovery 58 Stop Clock Recovery 58 User defined Analysis 60 Source 53 Accessing Source window 54 Autoset 54 Differential Probe 54 Horizontal Resolution 54 55 Single Ended Probe 53 Source Type 54 Source inputs 54 55 Vertical amp Horizontal 54 55 Vertical Scale 54 55 Configuring Plots 47 Bathtub Curve 48 Scale 48 Eye Diagram 47 Bit Type 47 Toggling masks 47 Histogram 48 Bin resolution 48 Vertical axis selecting 48 Spectrum Horizontal
23. hits a E amp f 9 wy g EB mts highlighted in red Ven Cursor 4 JUS t Jus At bus 31 Click the Zoom in X icon 32 Click the mask hits that you want to see in detail you may want to click multiple times to zoom in on the waveform Horiz Cursor Vi EE UNI V 273 5m LA MEO AE Waveform voltage m 33 Note the mask hits sample hits i x indicated in red on zoomed waveform a E amp ele p m t Bg 2 S Ven Cursor t NIIT b Jus At Gus Horiz Cursor Vi 338 5mV 4 Vp 273 5mV AW OE AE Wavetorm voltage mv 336ns 834ns 932ns 930ns 928ns 826ns 92405 S22ns 920ns 918ns 52 RT Eye Quick Start User Manual Using the RT Eye Software Configuring Measurements This topic contains information about advanced features of the RT Eye application Refer to the RT Eye Serial Compliance and Analysis Online Help for additional information if needed Choosing Probe Types and Measurement Sources When started the RT Eye application is configured with a default probe type and source for the measurements You can choose a different probe type and source either manually or by using the Wizard This section discusses how to manually choose a probe type and source You can set the probe type to Single Ended or Differential To use a single ended probe type you must choose two source waveforms nominally representing the Voositve and Vnegative inputs to a differential amplifier Th
24. jv shows this dialog at startup Select Seral Analysis nfi Select Co gure All Start ass Jittet a m0 1 amp m iassssaa Eye Widlh Wizard l Autoset Eye Height Run MyTest Emphasis E BER Clear Results Risa Save MyTest n2 Time a LL SLL Fi Configure Amplitude Single Run Y 69 Application Examples 5 Make the following selections in the setup Wizard 7 select Plot Types otep 1 Differential Step 2 EN Ch1 1 Probe Type i Step 3 PCIE 2 5G i 2 Measurement Sources Step 4 Timing Amplitude TIE Jitter Jitter BER Repeating 3 Standards 127 Ul m Eye Diagram Setup Wizard n 5 N Step 5 Yes 4 Measurement Categories Ed Spectrum TIE Jitter S t e p 6 y es m Bathtub Curse rlitterinBERT 5 Autoset Source Seales z tai T Step 7 Eye Diagram Spectrum Ease ML uad Bathtub Curve Jitter Histogram 6 Click Run i Autoset Sr Ref Lewels lt a a Viewing the Results 7 View the results RT Eye Plot Summary l l 5 The Plot Summary window displays amp E amp t bt bre the plots that you selected and the Results Summary window displays the measurements eo 500 f o i 500 iDO0ps 200ps Ons 200ps 200 Voltage m V TIE Jitter 8 Click Details Bathiub Curve stogram hits Jitter amp BER uve Result Summary Select Vie All Stats bud Measurement Mean Min hui aoc
25. set the maximum population on which the Source RetLevels Sman Gating Clock Recowery Jitter Population General Config Serial Analysis selected measurements are taken In Free i mt E tee Run mode sequencing will automatically halt Population Lirnit CONES x when the specified population is reached on Limit By imit nU all measurements LEN ans Measurement Mu 1 Click Population EE NN Mode Single Run Y 2 Click On 3 Select Measurement or Acquisitions in the Limit By drop down box 4 Click the Limit control and specify the number of measurements or acquisitions that you want to set as the limit General Config Use the controls in the General Config IRT Eyo 4 E x window to Set whether rise fall and Source RefLevels Sman Gating ClockRecowery Jitter Population General Contig Serial Analysis amplitude measurements are limited to Stat Stop transition bits or all bits You can also enable Stage Limit Rise F all measurements to transition bits only ES worst case logging in the scan mode ENG Siear Results 1 Click General Config Mode 2 Click to toggle the features nou di Single Run Y RT Eye Quick Start User Manual 63 Using the RT Eye Software Setting Limits The Serial Analysis module provides a Limits file that includes combinations of all measurements and statistical characteristics and an appropriate range of values for each combination The application can use the Limits file and a mask fil
26. the following procedures 1 Select Measurements gt Select The Measurements window displays 2 Select your probe type from the Probe Type drop down list box The probe type affects the available measurements When you select Single Ended measurements for Differential Skew CM Voltage and AC CM Voltage are added 3 Click the measurement buttons to turn the measurements on or off or click Select All to turn on all measurements 4 Click Autoset which performs a Vertical Horizontal and Reference Level autoset to ensure accurate measurement results NOTE You can set these levels manually See page 56 Ref Levels RT Eye Quick Start User Manual File Measurement Eye Width Eye H All Bite Eye H Non Tr Bi Eye H Trane Bits Rise Time Fall Time Un Bit File File Modules Measurements Plots Rees Log Ulillies Help RT Eye All Stats hai 0 6540Ul OQ OODOLI 329 04mVv Q0 0000 wv a4 390mv O0 O0DO0V 329 04mV O 0000V 0 z4340UI ML ral Q0 1527UI IU 1055U1 0 2083UI 0 1028U it Interva 1 0000UI 0 9990U1 1 0016Ul 0 0026U Rate 2 50006b s 2 20606Lb s 250250b s 6 5184Mb s Configure Limits Wizard Run MyTest Save MyTest Show Plot Export To COSY Details Time Units Single Run Y Unit Interval Y Modules Measurements Plots Resulls Log Ulililies Help Single Ended li Citferential d seee Jitter Eye Width Eye Height Stan Stop BER Clear Results
27. want to zoom the selected area is expanded aS oE Fa l V4 473 5mV to fill the display area but still maintain the V 481 6mV Tt vertical scale 4000s 3009s 2000s 100ps Ops 100ps 200ps 300gs 400ps BV 94 2 mV 8 Click a portion of the zoomed waveform RT Eye Plot Details _ to further zoom in or click and drag a u amp 9 9 9 w z Bia m zum box around the area Vert Cursor t 250 dps t 248 7 ps At 499ps Horiz Cursor V 4AT3 6mV V 481 6mV rus 200ps 150ps 100ps 50ps Ops 0ps 100ps 150p AN 923 2 mV iW B vt sd 9 Click the horizontal zoom icon to turn off the zoom function E ua c n e 5B s 10 Click the 10096 icon to return the o waveform to its original size Clicking this icon always returns the waveform directly to its original size without any intermediate zoom steps 1 CI t h i d RT Eye Quick Start User Manual 29 Using the RT Eye Software Using Cursors Use plot cursors to quickly take accurate measurements of two cursor positions on e m BP Pim a waveform and the difference A value up El st between the cursors Note that cursors are on by default when viewing plot details Cursor icons Is gi i F d Make sure that all zoom functions are off RT Eye Plot Details E before using cursors amp usas s Oz altll a F A 1 Click and drag each cursor to position it n LES where you want t 24
28. 00000005E 10 Hone Mas 0 0 1 5999999999999999 High Amplitude Wax 0 0 1 6 TIE Jitter Mas 0 0 106 10 RT Eye Quick Start User Manual Using Limits 14 After you select the Limits file that you want to use click On 15 Click Start The Result Summary window displays 16 Check the Status column for PASS FAIL results for the measurements on which you set limits RT Eye Quick Start User Manual Using the RT Eye Software File Modules Measurements Plots Results Log Utilities Help ye Eh x Limits Limits File Editor ES rE EE Limits File a e CAT ekApplicationswtdsrt eyewnodulesvS Moda Single Run Y File Modules Measurements Plots Results Log Utilities Help KON nr Eye UR x Seral Analysis fu All Stats Manu Result Summan Select Vie Show Plot Stan Stop Eye Width 0 707701 OFOTFUL O 7077Ul 0 0000Ul PASS Export m Eye H All Bits 407 30mv 313 2289mv 533 01mVvV 22031mv FAIL E ILI Eve H NomTrBit S40 23m 435 05m 650 56 21551 m Clear Results em J p a N Fu a be ur Ewe H Trans Bits 407 39mv 220 31mv Details aen Rise Time 0 1660 Ul 3950 0 1081UI Fall Time 0 1555UI O0394UI 0 2797Ul 0 1906 Ul Init Interval 1 0005 U1 0 gagau 4 0046 0 0027 Ul e Unit Bit Rate 250006b s 243800Gb s 2 502806Lb s 6 5473 Mbis interval Single Run Y Mode 67 Application Examples Application Examples Creating a Custom Compliance Module with Pass Fail Limits This application
29. 8 7ps At 499 ps 2 Read the V Vz and AV values for the horizontal cursors and the t tj and At Eye Diagram Voltage mv Horiz Cursor k V 648 7mV values for the vertical cursors ies V5 54 mV 400ps 300ps 200ps 100ps Ops 100ps 200ps 300ps 400ps AV 1 109 V 3 To reset the cursors click this icon i ng 100 Ho i GS e Resetting the cursors is a quick method ta e c mg ESI B v EL of locating cursors that may be positioned outside of the display 4 To turn cursors off click the associated E c m icon horizontal and or vertical jid E amp jeg gu Eat Fa ni t L 5 To return to the plot summary window x click this icon BES JE S ux Ic up EL b EB T OO e The plot summary window displays P T Eye Plot Summary amp us RAR ASS E 5 Z e a gt u mEn c E i tage m no 85 e v uz TIE Jitter Spectrum pz a J 4 Ch CO i TIE Jitter hite Histogram 3 30 RT Eye Quick Start User Manual Using a Grid 1 Click this icon to display the details of the upper right plot in this example the TIE Jitter Spectrum plot 2 To display a grid on the plot click this icon 3 To turn the grid off click the grid icon You cannot display a grid on an eye diagram plot Exporting Plots to Files You can export your plot data to two types of files m Graphic files in any format available on the Save as type drop down list m Data fil
30. CD EM CES Cursors gt Cursors On Then select ENT ET T Cursors gt Cursor Type gt V bars Curs Pos 198 0ns File Modules Measurements Plots Results Log Utilities Help RT Eve x Source Ref Levels Smat Gating Clock Recovery Jitter Population General Config Serial Analysis Recovery CR Window Gating Units Unit intervals Start Stop t i scan inci Analysis VAncovv Relative to CR Vndow e Stat Stop on e REDE t E 1 875k Clear Results r 2c 3 l E A Alignment Smart Stop m Scan to End t TT Satine of Record 35k g Enable Sean go Same si Clock Recovers Window SingleRun Y 2 In the application menu bar select Measurements gt Configure gt Smart Te Sele Gating aes i i das a Chi Limits Autoset The Smart Gating window displays Wizard SmartGating Run MyTest Clock Recovery Clear Results i Sa st an dae Mug Ed Mid ov il Population teen Kode General Config o E 25 T ne Single Run RT Eye Quick Start User Manual 57 Using the RT Eye Software 3 Click Cursors 4 Use the multipurpose knobs on the instrument to position the cursors defining the area of the waveform in which measurements will be taken 5 Click Start to take measurements on the waveform between the cursors Fle Edit Vertical Horiz Acq Trig Display topped nale S T Cursors 09 May 05 14 17 06 EPOE 2008545 5o eet RT Source RetLevele Sman tating C
31. EE EE E E 38 RT Eye Quick Start User Manual Table of Contents VieWind a saved RODO Teen dn Desa dt oen uto deu dn RES ite d tour entaltdin fun iae en tid baden te dAC IE ML NLIS One Ot D 38 Printing a Saved Report without ViOWING cccccccceecct eset ee eeeeeenee menn enhn meme nennen 40 Logging Worst Case Waveforms iussi dob elo e beue Sut AE p dail NUS Dou Sce dd CoD eR Lou ho pa uu uenia 41 UNO My TOS eite CERTE EDT 43 SAVING MISSE ecd ctu foae cheetahs aa ioo dopo bolso mc NE abo hair A E us eta M CEU 43 RUNNIN MYT OS CD 44 Selecting Measurements and Using Autoset ccccc ccc c cece cece eee eee e eee mmn emnes 45 SCIECIING PIOUS m MTT TP 46 CONGUE adl eR RE EA ET eT 47 Reconfiguring Plots and Using the Bit Error Locator sss 49 Configuring Measurements cusa od ood pato eel aea Foe er eme eh vts E De ute Boote a e id ufa ne pnt 03 Choosing Probe Types and Measurement Sources sssssssssssssssssssss nnne 53 SOUCO ET T E E ND 53 BE BOUES aineina an A E A tica amant aaa ete M 56 MEGN eraa a a a A onan oye panes a a a E 57 rude Norina a AA donee ETA E EO OE ET A 60 Jil ea aa IPIE PITCH a Br ek can Pad cers ate 61 PODIA IO Toana TT 63 SMS OON iar a E E ote E ead ph Pen AEE E meen ae EE n 63 Sem EINS aeae a oe un a oe Em ad as tpa a bp etiaai e a ations ence pfe 64 Viewing the Current Limits seed etie e onte tec t iip er ot qp e RA tuU I egre tis 64 Editing the Currently Displayed EImItF
32. Iles autos en oo atn dea enun eoo en n EE Eun Noe et En EE X ERE ME DIReRG 65 Viewing a Summary of the Limits ae 65 tod antec datar dodi d Ua qo s diu btt iba aod abogada aet cr diua doct e 65 Sdvine Be BIS TI esiti dco tete m pub de d tom eI gums tat eee ubt PLA I oe 66 SING BH PERPE PR PP T 67 Applicaton Examples nnise i iUos eR Nap Mu NE DR LEE ICM CAM Mn DEI D eens 68 Creating a Custom Compliance Module with Pass Fail Limits esses 68 Starting the RT EyeApplication accidente pr bti deat eon bx emitte 2A oce ae RU PIA TERIVAATO E Hui s phe do dagE 68 Running the Setup Wizard sie oats de papi d rae eed edat in wadcuaineat uae foU o pid base bpd d SiS DELE DE 69 VIEWING TI ROSIS eesedusdusieutesqiNut i aE A dete ra estnca tin od eate SAP Deiui Sce AR dui dn date ttu angel 70 Summary of Displayed Results 212550005 retra eee peo ERR Mas Fd i oe xx ees ER Rubr FS ER REIR s 72 USING d MaSK sao etse na post sd dept ttc botes bad tad us unsure ES hiatal cates honansue natal 72 Deng a LIMS MOG UG 28 tessuto t watt eve pe pu ERO ncn fatu toareaaen teaaan nec ne aeeweractoaeabeles tee 74 Creating Compliance REDO suiran Void voc s at re wor Mina Va Fur sd suet ee a ee ian pev Mud id 79 USMO NV II god cT RR 19 Index RT Eye Quick Start User Manual General Safety Summary General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it To avoid p
33. RT Eye Serial Compliance and Analysis Quick Start User Manual www tektronix com lektronix 071 1957 00 S Copyright Tektronix All rights reserved Licensed software products are owned by Tektronix or its subsidiaries or suppliers and are protected by national copyright laws and international treaty provisions Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc RT Eye 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 sales service and technical support jn North America call 1 800 833 9200 Worldwide visit www tektronix com to find contacts in your area Warranty 9 b Tektronix warrants that the media on which this software product is furnished and the encoding of the programs on the media will be free from defects in materials and workmanship for a period of three 3 months from the date of shipment If any such medium or encoding proves defective during the warranty period Tektronix will provide a replacement in exchange for the defective medium Except as to the media on which this software product is furnished this software product is provided as is without warranty of an
34. Server icon in the AMstart E 3 Es 7 TekScope fimariae ROURT Eye oscilloscope task bar The application will close the MATLAB sever when you exit the application 4 RT Eye Quick Start User Manual Getting Started Oscilloscope A maximum sampling rate with interpolation is often necessary to ensure accurate results Be sure to consider the following differences in sampling rates before taking measurements The TDS6604 oscilloscopes sample at 20 GS s on two channels and at 10 GS s on four channels The TDS6000B oscilloscopes sample at 20 GS s on two and four channels The TDS6000C oscilloscopes sample at 40 GS s on two channels and 20 GS s on four channels The TDS7404 oscilloscopes sample at 20 GS s on one channel and at 10 GS s on two channels The TDS7000B oscilloscopes sample at 20 GS s on one channel 10 GS s on two channels and 5 GS s on four channels The DPO70404 and DSA70404 oscilloscopes sample at 25 GS s on one channel 25 GS s on two channels and 25 GS s on four channels The DPO70464 and DSA70464 oscilloscopes sample at 25 GS s on one channel 25 GS s on two channels and 25 GS s on four channels The DPO70804 and DSA70804 oscilloscopes sample at 25 GS s on one channel 25 GS s on two channels and 25 GS s on four channels When the Record Length of the oscilloscope is set to 4 M or less the application can take all measurements The RT Eye application can take a TIE measurement on a record length up to 20 M
35. View the results as statistics Save statistics to a csv file View results as a plot Use the zoom function to examine details of a plot Use the Cursor functions in a plot Save a plot file Print a plot Save the worst case waveforms as wfm files Generate a report file Start application Select probe Select type measurements PIU Measurements Source Ref Levels Smart Gating Clock Recovery Jitter Population General Config 1769 005 RT Eye Quick Start User Manual Using the RT Eye Software Using the Wizard This version of the RT Eye Application has a Setup Wizard to enable you to quickly set up and take some key measurements Before starting the Wizard you must have your probe s connected to an applicable signal In these procedures a 2 5 Gb s 127 bit PRBS repeating pattern signal is used The positive and negative outputs of the signal are connected via phase matched SMA cables to a Tektronix P7380SMA differential probe which is connected to CH 1 of the oscilloscope See page 6 Connecting to the Device Under Test To use the wizard perform the following steps 1 Start the application m For older oscilloscopes typically Fle Edt Vertcal HorjAcq Trig Display Cursors Measure Masks Math Utilties Help non B models select File Run Reference Waveforms 10 May 05 10 26 07 Instrument Setup Application gt RT Eye serial eal Oak earn Compliance and Analysis Run Applicatio
36. Viewer toolbar The Save As window opens a ood debat UA pud Ei Es to save the report the default directory is Reports Save in c Reports t Er Eg File name s Save as type Report Files pt Cancel Z 3 Enter the filename 4 Click Save 5 Close the Report Viewer window Viewing or Printing a Saved Report Viewing a Saved Report To view a saved report perform the following File Modules Measurements Plots Results steps Select Configure Log Utilities Help ye ES x 1 Select Utilities gt Reports E Eve Diagra Histogram Y Bathtub Curve Y 38 RT Eye Quick Start User Manual 2 Click Browse The Open window displays the default directory Layouts 3 Click the Up One Level icon and then double click the Reports folder to open the Reports directory 4 Browse to locate the file that you want to view and click the file name to select it 5 Click Open RT Eye Quick Start User Manual Using the RT Eye Software File Modules Measurements Plots Results Log Utilities Help FO RT pTM x Report Generator Define Test Template Define Report Layout Seneirate Repor tofunoduler SeralAnalysistLayouts S a rpl Browse Col A File name Files of type All Files File name Tie_Jit rpt cancel Files of type All Files 39 Using the RT Eye Software 40 6 Click View File Modules Measurements Plots Result
37. art User Manual 13 Operating Basics Hiding and Returning the RT Eye Application 1 Click the Hide icon to minimize the RT Eye application and maximize the oscilloscope display 2 To display the RT Eye application again amp For non B or non C model oscilloscopes click the App button m For B and C model oscilloscopes select App gt Restore Application File Edit Wertical HorizjAcq Trig Display Cursors Measure Macks Math PSN utilities Help Buttons File Modules Measurements Plots Results Log Utilities Help Evo Ex x Probe Type Differential 7 meee THT ig e M Amplitude woes Jithe Eve Height Voltage BER Baa ET mes E ite Select Bit Rate z TIE Jitter x Time Amplitude z Plots Configure Amplitude xeu Single Run ud Fle Edit Vertical Horiz Acq Trig Display Cursors Measure Masks Math Utilities Help RT Eye Serial Compliance and Analysis Minimizing and Maximizing the RT Eye Application 1 To minimize the application select File gt Minimize 14 File Modules Measurements Plots Results Log Utilities Help Recall Default Perr Serial Analysis Recall Start Stop Save a eM Amplitude e e ite eens 00 l Voltage BER Preferences Clear Results FA Select ew lt a Undock Mode Contigure Single Run ad RT Eye Quick Start User Manual Operating Basics 2 To maximize the application click the EUER EE RT Eye icon in the task bar Ep Recyc
38. ct PCETxNTbit msk 17 Click Open AREER The mask file is opened and Mask is i A FCET NTbit mck Se j readme TE E PCETxTbit msk toggled to On if it was Off J Ej FcEx Rx ADD CON NTbitms P rcex CON Tbit msk P PCex S CON NTbit ms P rcex 5 CON Tbit msk a PCEX CON_NT bitm Ej PCEX gt CON_Tbit mx amp E rcex 5 CON NTbit ms P3 rcEX TX Y CON Tbitmk m PAPR ew mak Ej rxPT nTbit mak Me Pci Express File name PCET amp NTbit mak Filas of type J All Files 18 Note that Mask automatically toggled On Fie Mouuies Measurements Plots Results Log Ullies Help when you opened the mask file are TAE Configure 19 Click Select E Histogram Bathtub Curve B ie Moda Single Run Y RT Eye Quick Start User Manual 13 Application Examples 20 Click Refresh File Modules Measurements Plots Results Log Utilities The plots are recalculated using the Select a zur measurements taken previously and the eae ae Stat So Eye diagram is displayed with the mask Measurement ee 4 ES a that you selected Clear Results TIE Jite Speclhum EL TIE Jitter Histogram Jitter BER Bathtub Curve Mode Single Run Y 21 Note that mask hits if any are displayed as white dots ze Vert Cursor Sud t 249 5ps uy 4 t 249 5ps at 499ps Horiz Cursor Vi FERTILI m Vy 481 6m V AW 955 7mV Eye Diagram Voltage mv 1 L 400ps 300ps 20098 100p Dps 400p Defining
39. d select Programs gt TekApplications Relevant Web Sites You may also find useful information about serial data standards on the following Web sites www Infinibandta org www pcisig com www 11 org www tektronix com serial data Conventions Used in this Manual The following icon is used throughout this manual Sequence Step IV RT Eye Quick Start User Manual Preface The following conventions are used throughout the text of this manual RT Eye Quick Start User Manual The terms RT Eye application or application refer to the RT Eye Serial Compliance and Analysis Application The term oscilloscope refers to any product on which this application runs The term select is a generic term that applies to the two mechanical methods of choosing an option with a mouse or with the Touch Screen The term Compliance Module refers to optional plug in applications from Tektronix used for compliance testing to specific serial data standards The term Limits Module refers to a formatted text file used to specify user limits on mask geometry and measurement boundary conditions for Pass Fail testing The term channel is context dependent It can refer to the transmit channel of the device under test or to an oscilloscope channel The term DUT is an acronym for Device Under Test User interface screen graphics are from a TDS6000 series oscilloscope there may be minor differences in the displays on other ty
40. dwidth greater than 1 5 times the bit rate that you are measuring This ensures that the bandwidth is adequate for most measurements since most of the energy in high speed serial data signals is contained in the first and third harmonics To ensure accurate risetime measurements 2 5 times the bit rate 5th harmonic is required Typical Probing Configurations There are four typical probing configurations for serial data links two for pseudo differential waveforms and two for true differential waveforms The method that you use to set up your measurement channel s depends on your application and what you want to measure Two TCA to SMA adapters single ended Oscilloscope SMA Connector Termination 50 SMA cables SMA Adapters ECB RT Eye Quick Start User Manual m OneP73XX SMA differential probe m Two P72XX single ended or P73XX differential probes m One P73XX differential probe RT Eye Quick Start User Manual Getting Started Oscilloscope e lor est VDIFF CH 1 ECB ONAGSIOT fixture Oscilloscope ground connection Phase matched VCM SMA cables ECB Connector ECB Termination MM VDIFF CH 1 Getting Started NOTE You must deskew the probes when using two channels to perform pseudo differential measurements Use the proper deskew fixture and procedure as described in the user manual or online help of your oscilloscope The RT Eye application relies on up
41. e TIE Jitter Histocram hit l Jitter BER Bathtub Curve a P L 2 Im 4 Click one of these icons to display the DT Evc EET plot summary at half screen again ICTTACUITOPENE T Viewing Plot Details To view details of a plot click the details icon associated with one of the four possible plots For example to display details of the upper left plot 1 Click this icon RT Eye Plot Summary RT Eye Quick Start User Manual 27 Using the RT Eye Software mM CM UON displays for the selected plot lu E 8 52 25 wcu B BI eS Vert Cursor PEE t 248 ps At 499ps m The toolbar controls change X 200 0 200 Horiz Cursor 400 V4 4 3 omV 600 V5 481 6m 400ps 300ps 200ps 100ps Ops 1000s 200ps 300ps 400ps V 999 2mV Eye Diagram Voltage mv Using Zoom The toolbar for the Plot Details window has four icons that control the zoom function I Fi eb E e 2 IMs Eat B vh Ad T c ap 1 Click this icon to select the zoom in tool E EG 94 zB BE E 2 Click an area of the waveform to zoom in RT Eye Plot Details by a factor of two centered around the a u amp 9 OmiiSy Al He A point that you clicked E Vert Cursor NOTE An alternative zoom function is to eect i eae click and drag a box around the area that you S E 200 p 499ps want to zoom the selected area is expanded 5 3 to fill the display area ES in V AT3
42. e Skew Amplitude Emphasis Single Run Y Limits Ref Levals En Width Wizard Smart Gating Autoset eso RunMyTest ClockRecovery E Save MyTest Jitter llle mE Population Differential General Config Tima Skew rN eer Configure BSL ALL uH File Modules Measurements Plots Results Log Ulililies Help RT Ey S 1M EX x Source RefLewels Sman Gating Clock Recowery Jitter Population General Contig Serial Analysis Start Stop Clear Results Note Differential D D T Auloset Horizontal B Vertical amp Soale Resolution Horizontal Source Type Select Differential LivefR ef Ch L mmonmaode D D y2 Single Run L gt Ops te O5 0 5 l 1 5 DRM bog UMMes Help FOr a Recowan Jitter Populstion General Config Senal Analysis File Modules Measure Source Ref Level Smart Source Type Autoset Start Stop Live Rel Vertical Vertical amp Eg ga Scale Resolution Horizontal amp e FA Clear Results 7 aen Mode E EH Lf Single Run Y 59 Using the RT Eye Software Ref Levels Use the Ref Levels window to set the high middle and low reference voltages The timing instants used by the measurements are precisely determined by when these voltage thresholds are crossed by the source waveform s You can set any of the reference levels manually or you can choose Ref Level Autoset so that the application automatically determines appropriate levels If you do not set the reference le
43. e application subtracts Vnegative from V positive to create a composite waveform on which the measurements are performed The two source waveforms may be two live waveforms two reference waveforms or two csv files When you choose a Differential probe type you must choose a single source waveform This waveform represents the output of a differential amplifier external to the oscilloscope such as that contained in a differential probe Again the source may be a live channel a reference waveform or a csv file Source Use the Source window to configure the source of your measurements The controls displayed in the window differ depending on the probe type and source type that you select The following procedure configures the sources for a single ended probe type 1 Select Measurements gt Select The Select window displays robe Typs ae Limits Amp Jitter Eye Width Wizard De Jitter Eye Height Run MyTest Emphasis Bj BER Save MyTest Hp mem Low Amplitude File Modules Measurernents Plots Results Log Ulililies Help Eye 2 Select Single Ended from the Probe File Modules Measurements Plots Results Log Ulililies Help RT Eye E x Type drop down box Probe Ty Single Ended _ emitter Eye Width Differential Vr Jitter Eye Height Voltage BER Bit Rate gh TIE Jitte Time a Amplitude r iim Low De Amplitude Emphasis RT Eye Quick Start User Manual 03 Using the RT Eye Software
44. e to determine the Pass or Fail status for compliance tests You can view and edit existing files or create new limit files that meet your test needs Viewing the Current Limits To view the current limits perform the following procedure 1 Select Measurements gt Limits The Limits window displays 2 Click Off 3 Click Browse to find the Limits file that you want to display 4 Click Current The RT Eye Limits Editor Editor opens and displays the values in the currently selected Limits file 64 File Modules Measurements Plots Results Log Utilities Help R Eye x Source Ref Le Select Configure ockRecowen Jitter Population General Contig Wizard Run MyTest Save MyTest Moda Single Run Y File Modules Measurements Plots Results Log Utilities Help Eye x Limits Limits File Editor Limits File CAT ekAp plicatonsitdsrt eyeimodules Si i Browse Mode Single Run Y RT Eye Quick Start User Manual Using the RT Eye Software Editing the Currently Displayed Limit File To edit the currently displayed Limit file perform the following procedure 5 Using the drop down boxes and controls edit any measurement statistic lower limit or upper limit that you want To add a new measurement click in the toolbar A new line is added with None selected as the measurement to the end of the list Set up this measurement as you want To remove a measurement select None as the measu
45. e your measurements 48 File Modules Measurements Plots Results Log Ulililies Help Select Configure Serial Analysis Start Stop Clear Results Bathtub Curve Mode Select Configure Vert Scale Horiz Scale Eye Diagram Measurement Subplot HF Eye Width E ES TIE Jitter Eg Jitter BER Histogram Single Run Y File Modules Measurements Plots Results Lo q Select Configure Select Configure Mearurament Subplot Vertical Axis E Eye Width E 3i TIE Jitter Spectrum ra WES Jitter i BER Bathtub Curve Eve Diagram File Modules Measurements Plots Results Log Utilities Help Eye G x Select Configure Select Configure Measurement Subplot cosi Eye Width 2 TIE Jitter 737 TIE Jitter Scale Eve Diagram Clear Results Spectrum Jitter BER Bathtub Curve Mode Single Run Y Histo gram File Modules Measurements Plots Results Log Utilities Help Select Configure Select Configure Mearurament Subplot EE Eye Width Scale Eve Diagram Clear Results spectrum oF Histo gram Ed TIE Jitter 3 TIE Jitter a Jitter 2 BER Bathtub Curve bode Single Run Y RT Eye Quick Start User Manual When sequencing is complete the Plot RT Eye Plot Summary Summary window displays up to four m amp MER ase SUL j 1 f plots t0ps 200 100 TIE Jitter Histogram hits ELI ResultSummany Eve Width 873U 1 0 6873UI
46. econfigured plots are displayed 2T Click the Eye Diagram Details icon The details of the eye diagram are displayed 28 Note the mask hits 29 Click the Plot Summary Icon to display both plots again RT Eye Quick Start User Manual RT Eye Plot Summary juus tac cru v e fy otag 500 Eve Diacram M 400ps Modules Measurements Plots Results Log Utilities Hels Using the RT Eye Software Ej PCER mk Pj PXPTxTbit msk Eee BE FCETxTbiLm Ej PCEX_RX_ADD_CON_NTbit m EJ PCEX RX ADD CON Tbit msk e Pcex S CON NTbit mz readme e 5 CON Tbit msk P rcEx TX Abb CON NTbitm Pj PCEX PCE P FCEx Eb pxpRev mak EF PXPTxNTbit mek PCE ToNTbit mak Full Files X ADD CUN Tbit msk 5 CON NTbit ms 5 CON Tbit mzk File name Files of type LJ 209p Ops 200p dus Bh x et Configure a Eve Width Eve Width M ag m Ch m Eye S tial Analysis Ewe Diacram Waveform None None Single Run Vert Cursor 49 5ps t 249 5ps At 499ps Horiz Cursor Vy A f3 6m v 481 6 my 10 os 200ps m LA EDO REA OU 91 Using the RT Eye Software 30 Click the Waveform Details icon SE ini xj i EI amp 3 2 9 Fl 3 7 5 ge mi tax ye Diagram Vc 400ps 2 Ups Ups FE a aps Note that the Bit Error Locator displays BEIETITITITNEENENENNEEEEEID D the waveform with the mask
47. erential and click Next The choice that you made for step 1 is displayed in yellow text Repeat the above procedure for each step making the selections that you want Select Serial Anahysis Configure gt Star Ste P V Avuutoset RunMyTest Clear Results Save MyTest Selec ann pr E mS xm d ate Low Amplitude Setup Wizard 1 Select Probe Type 1 Probe Type z Weasurement Sources 3 Standards 4 Whdeasurement Categories Probe Type Single Ended Y Single Ended Differe nti al 2 Autoset fro Ref Lewels o HE o NE RT Eye Quick Start User Manual Using the RT Eye Software Smau T x Plots the display should look similar to this f select Plot Types 1 Probe Type 6 Click Run 2 hdeasurenment Sources 3 Standards Eve Diagram 4 Wdegsurement Categories Iv Spectrum TIE Jitter Gi Bathtub Cure litte re BER 5 Autaset Source Scales Jitter Histo gram TIE Jitter 5 Autoset Src Ref Lewels o a A display similar to this with the plot summary window in the upper half of the screen appears cirum ps Spe EU EV ipa Lins Z2 EIE ES 20 hite Ca Jrter Gi BER Bathtub Curve File Modules Measurements Plots Results Log Utilities Help Result Summary Salact View All Stat Measurement Mean LIT hl ax Pk PE Eve Width 0 7095U 0 7095UI 0 7095UI O ODODUI Eye H All Bits S08 52m 306 52mV v monoa To CSV Eye H Hon Ti Bit
48. es in binary fig file format RT Eye Quick Start User Manual Using the RT Eye Software RT Eye Plot Summary B E e eg i E F d Bug e iei Bl ut T ii o RT Eye Plot Details B amp amp 9 9 9 w zit Bv Bara Vert Cursor MENT f 1GHz Af 0 75GHz trum ps T E mr H S 4 Horiz Cursor __ TIE 1 976ps TIE 7 904ps ATIE 5 328ps opec 0 4GHz DGGHZz 0 6GHz 1GHz RS 22 Pw iW Bst TET E Graphic Data 31 Using the RT Eye Software 1 Setup the plot window as you want to export it 2 Click the Graphics or Data icon to select the type file that you want to export 3 Browse to the directory in which you want to save the file 4 Enter a file name 5 Select the type of file format that you want to export 6 Click Save Printing Plots You can print your plots to a printer if you have configured Microsoft Windows on your oscilloscope for a printer To print a plot perform the following steps Eye Diagram oltage m 400ps 300ps 200ps 100ps Ops 1000s 4000s 300ps 2000s 100ps 100ps Vert Cursor PEE 6 248 7ps At 499ps Horiz Cursor Vi Aff om V 481 6m AV 955 2 mw 200ps 300p 400ps Vert Cursor t 250 dps t 248 7 ps At 499 ps Horiz Cursor V AT3 6mV V 461 6mV zm m ATE mW 200ps 300ps Export Save in X images 4 t Test
49. example shows you how to perform jitter analysis compliant with T11 2 MJSQ methodology using the spectrum approach You will use the Setup Wizard to quickly set up and take your measurements and display plots select an appropriate mask for the eye diagram define a limits module create a compliance report and save your test so that you can run it when you start up the application again or at any other time The signal used for this example is a 127 bit PRBS repeating pattern A Tektronix P7380SMA differential probe with phase matched SMA cables is connected to the positive and negative outputs of a 2 5 Gb s signal source The differential probe is then connected to Channel 1 of the instrument The RT Eye Serial Data Compliance and Analysis Application must be installed and enabled on your instrument Starting the RT EyeApplication 1 Press AUTOSET on the front panel of the instrument to view the differential signal 2 Start the application m For non B and non C model oscilloscopes select File gt Run Application gt RT Eye Serial Compliance and Analysis 68 Fle Edit Vertical Tek Stopped Single Seq Fle X Edi Vertical Reference Waveforms Instrument Setup Recall Default Setup Run Application Page Setup Print Previews Print Export Setup Select For Export Export HariziAcq Trig Display Cursors Measure Masks Math Utilities Help Autoset Horiz Acq Trig D play Cursors Measure Mask
50. g ClockRecowen Jitter Population General Contig File Modules Measurements Plots Gating Units Unitintervals Start S er P Analysis Window Relative to CR Vendo Ea e Start Stop A Its 1 875k Clear Result 250 Centered al Stop Scan to End O eem of Record N LI Same as Clock Recovery indow s Clock Recovery CR Window Alignment Ao Length Single Run Y ad Enable Scan 99 Using the RT Eye Software File Modules Measurements Source Ref Levels Setting a User Defined Analysis Window within the Clock Recovery Window 1 To specify the absolute position of Gating sue f the Analysis Window within the Clock ow Recovery Window select User Defined ength from the Alignment drop down box Smart Gating Pee 2 Click Start and enter the unit interval or J Enable Soan edge that you want the Analysis Window to start 3 Click Length and set the size of the window in unit intervals or edges Your Analysis Window is now set up Clock Recovery Plots Results Log Clock Recowery Jitter Population General Config Utilities Help QM th x Gating Units Unitintervals Y Start S bo P Analysis Window Relative to CR Window E ea Start Stop S Lud Clear Results cd Centered bull e Mod Same as Clock Recovery a 1 876k Alignmert Single Run Y Use the following procedures to set up clock recovery using different clock recovery methods
51. ial De Jitter Eye Height Voltage Emphasis amp BER TIE Jitter S 8 Th 1 018 LLLI CE Bit Rate High 3 Amplitude anu Meas gt Select Serial Analysis Start Stop ES ES Cleat Results 1 hdode Single Run Y Autoset Seleot Plots Configure RT Eye Quick Start User Manual Operating Basics 3 To dock the RT Eye application select File Edit ertica Honzl Acq Trig Display Cursors Measure Masks Math Utilities Help File gt Dock File Modules Measurements Plots Resulls Log Ullilies Help Recall Default JMerential Recall Save e AME litu de see eee Jitter Ma pos Voltage Emphasis BER Preferences Amplitude Plots Jadac actos Low Minimize Amplitude Configure Exit Using the Sequencing Controls Sequencing is the steps to acquire waveform information determine if the information is usable for the measurement take the measurement and display the results Before starting sequencing you must set up the application properly There are three sequencing modes m Single Run Processes a single waveform and then halts If the waveform source is a live channel a new waveform is acquired using the current trigger settings of the oscilloscope m Single No Acq Processes a single waveform and then halts If the waveform source is a live channel the measurements are performed on the currently displayed waveform without retriggering m Free Run Co
52. ing procedure 1 Click Jitter 2 Select Arbitrary in the Type drop down box 3 Click the Window Length control to set the number of history bits used to calculate data dependent jitter for each edge in the waveform typically 5 to 10 bits 4 Click the Population control to set the minimum population that each bit pattern must be observed before it is used as a basis for data dependent jitter calculations typically 100 to greater than 1000 5 Click the BER control and enter the bit error rate The measurement will extrapolate the eye opening and total jitter at this BER 62 File Modules Measurements Plots Results Log Utilities Help Eye ES Xx Source RefLevels Sman Gating Clock Recowery Jitter Population General Contig Data Pattern m TET Type Length i Repesting Y Repeating ue tenu Meas Config isis File Modules Measure E2OT2M Source Ref Levels Smart g esults Log Utilities Help Evo mene Jitter Population General Config NI 1 Custom Repeating Y Single Run Y File Modules Measurements Plots Results Log Utilities Help iT Eye Source Ref Levels Smart ating ClockRecowen Jitter Population General Contig Data Pattern N RDI Arbitrary Repeating Aubitrary RT Eye Quick Start User Manual Using the RT Eye Software Population Use the controls in the Population window to File Modules Measurements Plots Results Log Ulillies Help IRT Eye x
53. itly guide the clock recovery software click On for the Nominal Data rate Click the Bit Rate control and enter the nominal bit rate in bits per second To set up the Clock Recovery at a PLL with a user defined bandwidth perform the following procedure 1 Click the the Method drop down box and select PLL User BW Click the User BW control and input the bandwidth To use the other controls in this window follow the instructions in the industry standard procedure starting with step 4 To set up the Clock Recovery to use the constant clock mean or the constant clock median method perform the following procedure 1 Click the Method drop down box and select Const Clk Mean or Const Clk Median To explicitly guide the bit rate used by the clock recovery software do steps 6 and in the industry standard procedure Jitter Using the RT Eye Software File Modules Measurements Plots Results Log Utilities Help Source Ref Levels Smart Gating Clock PFecoven Jitter Population General Contig PLL Loop Bay e e Clock Recovery Methad Liser Bir PLL Standad By Y standard bs Clear Results il lode AN Nominal Data Rate PCI E 246 PLL PLL Order First Seoond Single Run Y File Modules Measurements Plots Results Log Ulililies Help RT Eye x Source R f Levels Sman Gating Clock Recovers Jitter Population General Contig Serial Analysis Start Stop Clear Results Const C
54. k Open Selecting and opening a mask toggles Mask on Once selected you can toggle the mask off or on For additional information on using masks refer to the RT Eye online help RT Eye Quick Start User Manual Using the RT Eye software File Modules Measurements Plots i T Eye Measure ment Eve Width IE Jitter TIE Jitter Jitter t BER Plots Display Plots File Modules Measurements Plots 5 Me ca TIE Jitter Eq TIE Jitter a Jitter BER arure meant Subplot dth elect ub Bit Type 4 All Ewe Diagram ak f Spectmm Histogram o Eaei E d CEEL Bronse done Masks 1394b EE Ethernet I FED hand BE Fibre Channel BE intiniBand SAS me SATA ME Serial Rapidio ea am user mak 47 Using the RT Eye Software 7 In this example click 2 to display the Configure controls for a Spectrum plot 8 Click Linear or Log for the vertical axis scale 9 Click Linear or Log for the horizontal axis scale 10 In this example click 3 to display the Configure controls for a Histogram plot 11 Click Linear or Log for the vertical axis scale 12 Click the Bin Resolution control to select the number of bins 13 In this example click 4 to display the Configure controls for a Bathtub Curve 14 Click Linear or Log to set the scale for both axes 15 After you select and configure the plots that you want click Start to tak
55. kApplicetions Vif Set Program Access and Defaults dy windows Update fa Programs es Documents Bh Settings EN Search Qi Hep T Run up Shut Down Astat BIG fs Tekscope dararies ROART Eve YT cr F QUE sosm Fie Edit Vertical Horiz Acq Trig Display Cursors Measure Masks Math Utilities Help Tek Stopped Single Seq 18 18 Help on Window Fi Conbents and Index Restore Hen Specifications Technical Support Customer Feedback About TekSeape Getting Started 5 Verify that the firmware version is the same or greater than that noted in step 2 TDSE604 Version Serial Nox CHR OnD28 Instrument ID 1Scc0000001c og Options App 53 Avail nat installed RT Eye Serial Compliance and Analysis InfiniB and Compliance Module PLI Express Compliance Module Option Installation Key BZJEL L rGM8 72CFD M 72Tw DSDVe H 4 Copyright C 2001 2003 T ekkronis Inc This software is based in part on Ehe work of the Independent JPEG Group OK Other minimum requirements are m Windows 2000 or Windows XP operating system m 850 MHz Processor m 512 MB SDRAM Other Requirements and Restrictions MATLAB MATLAB The RT Eye installer also installs the Sun Java Run Time Environment JRE and the Mathworks MATLAB Run Time Server The MATLAB server is dedicated to the RT Eye application and cannot be used for other purposes Do not close the MATLAB
56. le Bin TDSJIT3v2 ES Bo Adobe Reader 6 0 3 Tektronix Toolbar 5t Mstart BIG X LS gt rekscope AAMATLAB server Ber eve ke If you expanded the TekScope application full screen after minimizing the RT Eye application you can maximize the RT Eye application by performing the following step 3 o maximize the RT Eye application again amp For non B or non C model Fle Edt Vertical Horz Acq Trig Display Cursors Measure Masks Math Utilities Help oscilloscopes click the App ek T N button amp For B and C model oscilloscopes File Edit Vertical Hort Acq Trig Display Cursors Measure Macks Math ETT utiinies Hep Buttons Restore Application select App gt Restore Application RT Eye Quick Start User Manual 15 Operating Basics Docking and Undocking the RT Eye Application 1 To undock the RT Eye application select File gt Undock 2 Click and drag the RT Eye title bar to position the application anywhere on screen or on a second monitor if used 16 File Modules Measurements Plots Results Log Utilities Help KOM py Recall Default Recall Aiffarential Save Amplitude rere d Voltage Emphasis i BER comme Aither ee Preferentes Select Ty A Undock D Minimize Configure Single Seq RT Fye File Modules M asuremenis Plots Resulls Log Ulililies Help Probe Type Differantial v merenan coos Jitter Ewe Width Different
57. lication Examples Summary of Displayed Results The three plots of jitter and the corresponding measurements represent a typical method of taking jitter measurements using the Spectrum Method of Rj Dj separation The TIE histogram lower left hand plot is the traditional method of measuring jitter on an oscilloscope This method is limited by the amount of statistical certainty that can be achieved in a reasonable amount of time More advanced DSP methods are used to determine the jitter eye opening total jitter random jitter and deterministic Jitter The TIE measurements are transformed into the frequency domain by performing an FFT on the raw TIE data creating the jitter spectrum shown in the upper right hand plot The spikes in the frequency domain represent deterministic jitter Further analysis can be done to determine which spikes are Duty Cycle Distortion DCD which are Data Dependent Jitter DDJ and which are Periodic Jitter PJ Once these values are removed DJ then what is left is a noise floor which represents the Random Jitter RJ These transformed values are used to create the Cumulative Distribution Function CDF commonly known as the Bathtub Curve shown in the lower right hand plot The magenta line at 10 12 BER represents the jitter eye opening measurement As can be seen by the measurement results the following equation applies Eye Opening BER 1 UI Total Jitter BER For more information about the spec
58. lk Median PCLE 256 E PLL Standard E EZ PLI PLL User BV r Mode v Single Run Y PLL Loop BY e Clock Recovery Method MM OOOO OOOO User DN a PLL User Bray Y 15h l Corsi Ch Mean Standard enu Meas gt Config File Modules Plots Results Log Ulilities Help RT Eye ES x Source RetLevels Sman Gating Clock Recovers Jitter Population General Contig Measurements Serial Analysis S tant Sto p Clear Results Clock Recovery PLL Loop BW Method Winer Bruny Corsi Ch Mean Const Clik Median PLL Standard Bw Mode Single Run Y Use the controls in the Jitter window to set up for Jitter BER measurements These controls are not required for a TIE jitter measurement RT Eye Quick Start User Manual 61 Using the RT Eye Software If your waveform has a cyclically repeating pattern and you know the pattern length in unit intervals perform the following procedure 1 Click Jitter 2 Select Repeating in the Type drop down box 3 Select from one of the industry standard bit patterns in the Pattern drop down box If your pattern is not listed choose Custom 4 f you selected Custom as the pattern then enter the pattern length 5 Click the BER control and enter the bit error ratio The eye opening and total jitter at this BER is extrapolated If your waveform does not have a repeating pattern or has a repeating pattern for which you do not know the length perform the follow
59. lockRecowery Jitter Population General Contig Clock Recovery CR Window Length FA 9 gd Scanto End ot Record a Enable t n Gating Unils Unitintewas Y Analysis Window Relative to CR Vndow Start ba Stop 1 875k Alignment Centered ur gd Same of Clock Recovery Windes Measure Masks Math Utilities Help Cursl Pos 368 0ns Curs2 Pos 558 01 jM x Serial Analysis Start Stop IE Ve Clear Results Mode Single Run Y enu Meas gt Config Using Smart Gating to Set Up a Gated Region To set a gated region using smart gating you must set up a Clock Recovery Window and then define your gated region by setting up an Analysis Window within the Clock Recovery Window Setting Up the Clock Recovery Window Perform the following procedure 1 Click Measurements gt Configure gt Smart Gating 2 Click Smart Gating 3 Click the Gating Units drop down box and select the type of units that you want to use 4 Click Start in the Clock Recovery Window and enter the unit interval or edge within the record where the clock recovery starts 5 Click Length in the Clock Recovery Window and enter the length in unit intervals or edges of the window over which the application recovers the clock 6 Note the unit interval or edge on which the clock recovery will stop 58 File Modules Measurements Plots Results Log Utilities Help Select Configure Source Ref La S
60. n DVI Compliance Test Solution S0 0psup Pane Set Ethernet Compliance Test Software ara pn Jitter Analysis Advanced idis ios oP Jtter Analysis Essentials Mn EUM RT Eye Serial Compliance and Analysis Export Setup Select for Export b Export L Recert Minamize Chri M Shutdown m For newer oscilloscopes typically Bie Edit Vertical Moriz Acq Trig Display Cursors Measure Masks Math JERRY utiimes Help Buttons B models select App gt RT Eye Serial Compliance and Analysis RT Eye Serial Compiance and Analysis Aii ai i abbiata a Piat 2 If the RT Eye Welcome dialog box File Modules Measuremer E enaa NE E displays click Run Wizard Go to step 4 Probe Type Differentia Serial Analysis Star Stop M Timing meeen Run MyTest m Eye Width Eye Height Run Wizard E Clear Result Rise Time s Let Mon Time s Single Run Y I show this dialog at startup enu Meas gt Select RT Eye Quick Start User Manual 23 Using the RT Eye Software 24 3 If the RT Eye Welcome dialog box does not display select Measurements gt Wizard You can use the File Preferences menu selection to set the RT Eye Welcome dialog box to open when you start the application The Setup Wizard dialog window opens with step 1 Probe Type highlighted The selections for step 1 appear in the right hand area of the window Select Probe Type from the drop down list in this procedure Diff
61. n completed the report displays Use the Alt Tab key combination to bring the report to the front if necessary Using MyTest You have created a custom compliance test module Now you will use MyTest to save your test and run it automatically when you start the application or whenever you want RT Eye Quick Start User Manual Application Examples File Modules Measurements Plots Results Log Utilities Hiep RT Eye Serial Analysis Start Stop EA Clear Results hd o d e ja Show Plot Result Statistic This Acq All amp cqs Loweer Lim Upper Lim Lus Population 12590 12509 Export Maan 8 1617ps 6 1617 ps To CSV StdDew 20 280ps 20 296ps Max 34 490ps 84439ps amp D ODO ps FAIL Min 42 6468p 646ps 60 000ps 127 15ps 127 15ps Summary Seconds Single Run ad Plots Results Report Generator Log Utilities Help RLEe x Serial Analysis Start Stop EA Clear Results hdode File Modules Measurements gt esi Template Define Report Layout Generale Report to modulaskS arialAn alyzistLayoutsS a rpl Generate amp Single Run Y De e ee eee me m 99 ee ENECRNN me xm ox 0 o 56 45Tps 6457ps SEIU rats etme Report generated using Tektronix Report Generator k aa Pae7e8 T 79 Application Examples To save your settings as a MyTest file perform the following procedure 46 Select Measurements gt Save MyTest Your cu
62. nalysis Window After setting up the Clock Recovery Window you must set up the Analysis Window There are three ways to set up the Analysis Window m The same as the Clock Recovery Window A smaller region centered within the Clock Recovery Window m A user defined region positioned anywhere within the Clock Recovery Window To set up the Analysis Window perform the one of the following procedures Setting the Analysis Window the same as the Clock Recovery Window 1 Check Same as Clock Recovery Window Your Analysis Window is now set up Setting the Analysis Window Centered within the Clock Recovery Window 1 Clear the Same as Clock Recovery Window check box 2 Select Centered from the Alignment drop down box 3 Click Length and set the size of the window in unit intervals or edges Your Analysis Window is now set up RT Eye Quick Start User Manual File Modules Measurements Plots Results Log Utilities Help Eye x Source ReflLevals Sman Gating ClockRecowen Jitter Population General Contig Clock Recovery CR Window Gating Units Unitinterrals Start u Sto P s lt neta k Analysis Window Relative to CR Window d La 2 a 51 Stop lis Slant e 1 875k Alignment p Scan to Eng Cantarad m Mode of Record p v Enable Scan iv Same as Clock Recovery Windows Single Run Y Clear Resylt Results Log Utilities Help Euo Source Ref Levels Sman Gatin
63. ng Tie JR an the hek pm 1 2682k 144 550 di on s acd es ET Page 1 12 May OG 20 You can save the acquired waveforms to a set of wfm files whenever a selected measurement exceeds the highest or lowest prior value To log worst case waveforms perform the following procedure 1 Select Log gt Worst Case gt Configure The Worst Case Waveforms window displays 2 Click ON in the Log section 3 Click Browse to open a browse window RT Eye Quick Start User Manual File Modules Measurements Plots Resulls Log Utilities Help Eug M X Config File Hame Worst Case P Configure Anahysis Worst Case Waveforms File Names Start Stop og Log Directory Select T d Tl SUJETE amp m i o EM CATekApplicationsxtdsrt eyewnodul Browse Clear Results Purge the log files in the selected directory aen Pure Ade d e Single Run L enu Log Worst Case File Modules Measurements Plots Results Log Uiilities Help RT Eye x Config Fila Names Serial Analysis Worst Case Waveforms Stan Sto P Log Log Directory Select X EN EN CATebAppiicationstisteye modul EAN fo Clear Results Ll es4 V Purge the log files in the selected directory ETH Mods Single Run enu Log gt Worst Case 41 Using the RT Eye Software 4 Browse to the directory in which you want to save the set of worst case files 5 Click Open 6 If you want to clear existing waveform and c
64. ng the RT Eye Applicaton uicta cedat ratio kt ee ba bete at Rote eet vila hod tatu 16 Using the Sequencing Controls cccccc cence cence eee eee mH hme eme mem nnn nena nnn 17 Exiting the RT Eye ADpIICalOTIus cuire reto ito eode debebit er rocod ee PERF Yd ee eed a ebd ld eae dir ed td 18 RT Eye Application User Interface and Menu Structure ccc ccc ce cece cece cece eee e cece mme 20 EOCAUNG NeApplicaton ABRE OTT 21 Using the RT Eye Software REOR RU m 22 Setting Up the Application apta yid deolona qe cedo PIERII EO ot d bolle bdunpad er bomb eY Ead e pat Ptpp ates 22 Az NRI E 23 vViewng Pot SUCH aiat omubpba hb LEER VUE UR Ed ne nn ee tub teh ee ee UN DRM eee dA UE 25 Viewing Plot Details rm c em 21 Sono LOO e e e EE E E E E A E EEE E E N 28 GIANG CUMS ONS a n a A EE EAE EEE N E E EA EE EA E S 30 DEAE i o EEEE A EEN E E N AD A EN ian A TE 31 Exporting Plots to Files pM EE Pr M 31 aii sido oa E A E E E EE T E N E E EE 32 MAG WIG RO US Caesia name umm dta AEE E E EAEE TA E E EEE EIE EAT 34 creating a NEW REDOM cja sssicase sesptreatecns eian EAE E EEE ba E E eee aeawausnnsaees 36 Generating a Uu mMC 36 PONG aA REDO errira riea A E EE E A E EE E E 37 Scis A e E EE A AEE IE AE IEEE AE 38 bic eod Pining a saved REDON Tr EEEE EEEE
65. ntinuously acquires waveforms and sequences until you select the Stop command button results and any plots are updated one or more times per measurement cycle RT Eye Quick Start User Manual 17 Operating Basics The sequencing controls consist of the following 1 Clear Results Clears previously taken measurements 2 Mode Selects one of three modes Single Run Single No Acq or Free Run 3 Start Begins the sequencing steps 4 Stop Stops the sequencing For example if you selected Free Run as the mode you can click Stop to end the sequencing If you selected Single Run or Single No Acq it is not necessary to click Stop Exiting the RT Eye Application 18 1 Select File gt Exit or click the Close icon The Exit RT Eye dialog box opens File Modules Measurements Plots Results Log Utilities Help Serial Analysis Sp Stop Differential 4 Timing M e amplitude T DC ERE Eye Width Differential Jitter Ewe Height Voltage BER Rise Bit Rate TIE Jitter Time D Configure Time Amplituda mg Single Run F Fie Edit Vertical Horz Ac Trig Disolay Cursors Measure Masks Math Utilities Help Tek Stopped Single Seq 1 Acqs 1f 15 2 5 Mas 05 15 52 53 Sn trem File Modules Measurements Plots Results Recall Default Recall Save Recall Recent Log Utilities Help Serial Analysis Start Stop Clear Results Tz M Q d e r
66. op E Clear Results Export To SL Summary Time Unit Unit Internal Y Single Run 35 Using the RT Eye Software Creating a New Report Use the Report Generator utility to generate a compliance report The report is a rpt file that can only be viewed or printed from the Report Generator You can customize the contents and layout of the report using the advanced features of the Report Generator Refer to the RT Eye online help and the Report Generator online help for details By default the report files are saved to the Reports directory as shown Generating a Report To generate a report perform the following steps 1 Select Utilities gt Reports 2 Click Generate Wait until the report generator is finished 36 2 SerialAnalysis 5 3 2005 8 36 PM 5 4 2005 6 01 PM 53 2005 8 09 PM 5 3 2005 8 38 PM C ReportGererator B CJ modules 2 FEDIMM H InfiniBand C PCIExpress Details Select Measurement Jitter Te Serial Analysis 2 Show Flot Start Stop Resull Statistic This Acg FII Ac qs Loyuer Lim Upper Lim zm Population 1 Export Ea ES TJ Wean 0 4041U 0 4001 To CSV StdDey 0 0005 LUI biim 0 4044 UI Pre Pk 0 0009 UI Clear Result Time Units Mode Unit Interval Y Single Run File Modules Measurements Plots Results Log Report Generator Ulilities Help Eye x Serial Anabysis Start Stop c Clear Result Define Test Tem
67. otential hazards use this product only as specified Only qualified personnel should perform service procedures While using this product you may need to access other parts of a larger system Read the safety sections of the other component manuals for warnings and cautions related to operating the system To Avoid Fire or Personal Injury Connect and Disconnect Properly Do not connect or disconnect probes or test leads while they are connected to a voltage source Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product Do Not Operate Without Covers Do not operate this product with covers or panels removed Do Not Operate With Suspected Failures If you suspect that there is damage to this product have it inspected by qualified service personnel Avoid Exposed Circuitry Do not touch exposed connections and components when power is present Terms in this Manual These terms may appear in this manual A WARNING Warning statements identify conditions or practices that could result in injury or loss of life A CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property RT Eye Quick Start User Manual ili Preface Preface This manual describes how to set up and use the RT Eye Serial Data Compliance and Analysis Ap
68. ource Chi Wizard Run MyTest Save MyTest Jitter Population General Config Aurtoset Clock Recovery Ed Mid ov Hysteresis Source Ref Levels Sman Gatng Clock Recowen Jitter Population General Contig Gating Units Analysis Window Relative to CR Window Start x Stop 1 875k Alignment Centered Y iv Same as Clock Recovery indows Unitinterrals amp Start stop bays start Step Clear Results 1 DTE Single Run Y Clear Results Single Run Y RT Eye Quick Start User Manual You can take measurements on multiple clock recovery windows within the waveform To use multiple windows perform these additional steps T Check Enable Scan 8 Click Scan Incr and enter the number of unit intervals or edges by which you want to each scan to be offset from the prior one 9 Click Scans and enter the number of scans that you want to make or if you want to scan the entire record check Scan to End of Record Using the RT Eye Software Results Log Utilities Help Evo x Source ReflLevels Sman Getng ClockRecowen Jitter Population General Contig File Modules Measurements Plots Gating Units Unitinterrals Start 5 Analysis Window Relative to CR Window er P Ea start E Stop 1 875k Clear Results er d Moda Alignment Scan to End Centered of Record Ed Enable Scan Single Run r3 Ed Same as Clock Recovery Windows Setting up the A
69. peak to peak 1 To view the summary statistics for your File Modules Measurements Plots Results Log Utilities Help RT Eye m x current measurements select Results EARLIER NEST n Summa AR Genea comig Serial Analysis Summary Source Type Select Details Autoset Start Stop i i ivelRe Malla Vertical Vertical amp X The Result Summary window displays uu EJ Eg listing all the selected measurements Clear Results and their general statistics Note Differential f D Commonmode D D F2 34 RT Eye Quick Start User Manual _Using the RT Eye Software 2 Use the scroll bar to view all the measurements 3 Click Export To CSV to export the measurement data to a comma separated data file that can be used in other applications File Modules Measurements Plots Results Log Ulilities Help Result Summam Seleot Vict All Stat Setial Analysis ae Mean Min mas f PiPk Status Eye Width 0 991401 0691301 0 09140 0 OU Eye H All Bits 330 25mvV 330 25mV 320 25m 0 0000V Eye H Hom Tr Bie 464 08mY MED 1 OL ME E OT 0 00004 Eye H Trans Bits 330 75mwv 330 25mW X0 25mwv 0 0000 7 0 19261 show Flot Start Stop xpo 1 E IE a To CSV LI Detalis 0 155401 0 100501 0 2031U 0 1355UI O086C4Ul 0 2704U 0 1000 1 000001 0 gHEgul 1 00 12U 0 0023L 2 50000b s 2 307D00b s 2 50280b s 5 8108hibs Risa Time Fall Time Unit Inte real Bit Rate Singic Aun
70. pes of oscilloscopes When steps require a sequence of selections using the application interface the gt delimiter marks each transition between a menu and an option Preface vi RT Eye Quick Start User Manual Getting Started Getting Started This section contains information on key features compliance modules compatibility issues installation probing configurations and calibration Key Features The RT Eye Serial Compliance and Analysis Application is a software product that enhances the basic capabilities of some Tektronix oscilloscopes that use Microsoft Windows operating systems The RT Eye application is a general analysis tool that you can use to test debug and verify serial data based designs You can use this application to do the following tasks Select and configure many amplitude and timing measurements on serial data signals Quickly set up and take measurements using the Setup Wizard Select MyTest to execute a previously saved customized set of test conditions Conduct RT Eye rendering and mask testing Time Interval Error analysis Rj Dj random jitter and deterministic jitter analysis and display results as a Bathtub plot Display the results as eye diagram histogram spectrum or bathtub curve plots Use the bit error locator feature to find mask failures on the waveform Perform Pass or Fail limits testing based on waveform masks and based on measurements that use Limits Modules Perform plug fest le
71. plate Define Report Layout Generate Report torumedules SenalAnabsistL ayoutSa pl DITE Single Run RT Eye Quick Start User Manual When completed the report displays Use the Alt Tab key combination to bring the report to the front if necessary Printing a Report 3 To print the report click the printer icon in the Report Viewer toolbar 4 Select a printer from the drop down list 5 Make any adjustments that you want and click OK The Print dialog box may differ slightly depending on the printer your are using RT Eye Quick Start User Manual Using the RT Eye Software Eq Report Report Viewer E x Fle Edt Yew Object Help aistaer aatetia Qe ri for Serial Analysis bt a p ih B RB m Test 12 May 2005 20 34 36 Ready Peis RG Report Report Viewer File Edit View Object Help I Gig Report Report Viewer Fle Ect View Object Help a ad amp Es 7 V a R A eb es zs isies oe Printer Name WLekpmi1 2582k144d 5500dt Status Ready Type Aerox Fhaser 550001 P5 Where B58 L2 Grid K14 Comment Xerox 5500d Bw B58 L2 Grid K14 Piirt to fie Copies Number of copies INE Ready Pagelofs J 97 Using the RT Eye Software Saving a Report 1 To save a report click the save icon in Erg Report Report Viewer File Edit View Object Help cH sae c7 T3 Booth A a Siler the Report
72. plication Only basic operations presented as task oriented procedures are covered For more detailed information such as theory concepts or algorithms refer to the RT Eye online help For information about using specific industry standard modules refer to the documentation provided with the module See Documentation below for additional related information Documentation To read about Use these documents Installation enabling an application software Read the Optional Applications Software on a Windows Based warranty and license agreement 5 times free Oscilloscope Installation Manual trial downloading files from the Tektronix site available applications and compatibility Basic operations of the RT Eye application Read the RT Eye Serial Data Compliance and Analysis Quick Start User Manual this manual provided in PDF format on the Optional Applications Software on a Windows Based Oscilloscope CD 1 In depth operation user interface help GPIB Access the online help from the Help menu in the RT Eye application commands and measurement algorithms Other related documentation such as Read the relevant documents provided in PDF files on the Optional Method of Implementation MOI documents Applications Software on a Windows Based Oscilloscope CD 1 and help files for specific compliance modules Report Generator help and so on 1 To access the documentation that is installed on your instrument click Start in the taskbar an
73. press Serial Data Compliance and Analysis Application PH PO22411 85x11in 1 For information on oscilloscope and RT Eye application compatibility refer to the Optional Applications Software on Windows Based Oscilloscopes Installation Manual Tektronix part number 071 1078 xx that shipped with your application Minimum Required System Configuration To check whether you system meets the minimum required system configuration do the following procedure 1 Select File Minimize to minimize the TekScope application Fle Edit Yertical HoriziAcq Trig Display Cursors Measure Masks Math Utilities Help Reference Waveforms Instrument Setup Recall Default Setup Run Application b Page Setup Print Preview Print CtrHP Export Setup Select For Export b Export Minamize Shutdown RT Eye Quick Start User Manual 2 Select Start gt Programs gt TekApplications gt tdsRT Eye gt Readme note the minimum firmware version that is required and close the Readme file 3 Click TekScope 4 Select Help gt About TekScope in the oscilloscope menu bar RT Eye Quick Start User Manual Getting Started Dr E My Documents TDSJIT3v2 Help a Heb PDF Version ET Internet Explorer aa wn Outlook Express TDSJIT3v2 GS windows Journal Viewer Windows Media Player CickN Burn Pro 2 0 English GY Checkit Utilities Adobe Reader 6 0 ko Te
74. re efficiently To Recall Default pesar Serial Analysis set the preferences im Stat stop E XI CN A Ea a Recall Recent m Jitter Autose 1 Select File gt Preferences a a Fa SERE Plots The Preferences dialog window displays he Select Lom E Mode Amplitude Configure Single Run ad 12 RT Eye Quick Start User Manual Operating Basics eee gl E Display a Welcome dialog window e Show WWelcome dialog at startup each time that you start the application that allows you to run either MyTest or the Wizard e Enable high performance eye rendering m Display the Autoset Summary Apply cancel EN dialog window each time you select Spp Cancel lt Autoset NL Gi Show Autoset Summary dialog when Autoset is selected m Enable high performance eye rendering When selected only segments of the waveform surrounding the worst case eye violations are rendered The resulting eye typically contains 10 000 to 12 000 unit intervals Uls for statistical validity but results in faster display of the eye diagrams If this selection is not checked then all the Uls in the record are rendered resulting in increased fidelity of the eye diagram but reduced measurement throughput 3 Click m Apply to apply your selections and leave the dialog window open m Cancel to discard your changes and close the dialog window m OK to accept your changes and close the dialog window RT Eye Quick St
75. rement and click Compact Compact removes all measurements that are set to None Click Validate to verify that the limits for each measurement are valid and that there are no duplicate measurements Viewing a Summary of the Limits 9 To view a summary of the currently displayed file select File Show Summary The Summary window displays RT Eye Quick Start User Manual RT Eye Limits Editor d X File Add EERE Measurement Statistic Lower Lim Upper Lim a Rise Time 1 ps j Le z ps Fall Time 100ps Ewe Height Eye Width amp Unit Internal 333 SG ps Unit Internal Walidate RT Eye Limits Editor l X File Add gw Open Statistic Lower Lim Upper Lim cave Save AS Show Summary ZOOps Ewe Width 65 Using the RT Eye Software 000 The summary table displays all the measurements statistics lower limits and upper limits that you have set up 10 Click OK Saving the Limits File 11 Click Cancel to close the editor without saving any of your changes 12 Click Save As to save your file Be sure to save the file with a different name unless you want to overwrite the current file 13 Close the RT Eye Limits Editor 66 Summary xe Rise Time Min 1 0E 10 00 Eye Height Min 1 0 0 0 Eye Width lin 2 02 10 0 0 Fall Time hin 1 0E 10 0 0 Unit Interval Min 3 S996000000000003E 10 0 0 Unit Interval Wax 0 0 4 00040000
76. rements Plots Results Log Ulililies Help Configure gt Limits Wizard Run MyTest E Save MyTest Low AMP Serial Analysis Start Stop Clear Results Mode S JETTED E De Jitter Emphasis amp BER Select TIE Jitter Plots Configure Autoset Single Run Y RT Eye Quick Start User Manual 2 Select Differential from the Probe Type drop down box 3 Select Measurements gt Configure gt Source The Source window displays This display is for a differential probe type with Live Ref selected 4 In the Differential drop down box select the source of the waveform on which you want to take measurements 5 Click Vertical Scale to autoset the waveform to display full screen vertically based on the amplitude of the source 6 Click Horizontal Resolution to autoset the time base to the horizontal resolution and record length necessary for accurate measurements T Click Vertical amp Horizontal to autoset both the vertical scale and the horizontal resolution 8 Click Select to display the Select Measurements window RT Eye Quick Start User Manual Using the RT Eye Software File Modules Measurements Plots Results Log Ulililies Help Probe Type Single Ended Mi Single Ended i Ditterential em Serial Analysis Stan Sho p Ea EJ Clear Results seven 18 1 eee Eye Width Differential Pesi Jitter Autosat Eye Height Voltage te BER Rise High T Low De Mod
77. rrent setup is saved as My Test 47 Select File gt Exit The Exit RT Eye dialog window displays 48 Click No to exit without restoring oscilloscope settings To run MyTest from the RT Eye Welcome dialog box which displays when you start the RT Eye application perform the following procedure 49 Start the application m For non B and non C model oscilloscopes select File gt Run Application gt RT Eye Serial Compliance and Analysis The RT Eye Welcome dialog box displays 80 File Modules Measurements Plots Results Log Utilities Help X RT Eye x Select n Select Views All Stats ad Configure Show Plot Measurement Limits i Max Pk Pk Status Ewe Width uU a63a1Ui 0 UI Wizard T Eye H All Bits mv 444 40m 0 0000 To CSV 3rPH IAN hunMyTest mv Semen 0 0000V Clear Results Eye H Trans Bits SaveMyTest iikie i 0 0000 Details von Rise Time TETEFIIT u 1o 1Ul 0 1347 UI Fall Time 0 16511 O0S43Ul OO 24045 0 14552 Unit Interval 1000001 0 95989UI 10016UI 0 0027Ul Time Unit Bit Rate z5000Gb s Z 49B0Gb s 2 5 28Gb s amp 799g2Mbis Unit interwal Y Single Run Y hdode Recall Default Serial Analysis Result Summan Select View All Stats Recall Show Plot Start Stop Save Mean Min Max Pk PK z B5ps 2F285ps 272 85ps 0 ODDO Export Recall Recent gt vis 722mV 230722mv 30722mV 0 0000 To CSV Dock 722mV 307 22mV 307 22mW 0 00004 Minimize
78. s 629 44my V Eye H Trans Bis 3G86 52mV mv 38685 V OOo Rise Time 0 1834 D 09 3l D 2836U 02002 Fall Time 13330 uS72Ul O zZBS3Ul OFF ZU Unit Inte neal TSUI neaao i OnDO 2Ul Time Units Bit Rate 205000655 24072Gb s 2 5027Gb s 5 4755Mb s Unit internal Y Single Run Show Flot Details Viewing Plot Summaries a olor Goi antl Ge following toolbar controls for controlling the plot views EES HEAR EF A RT Eye Quick Start User Manual 25 Using the RT Eye Software 1 Click this icon to display the plot summary in the lower half of the screen E Es Hanul ass Fie Edt Vertical Horiz Acq Trig Dsplay Cursors Measure Masks Math Ubities Helo Tek _ Stopped Single Seq ES HN 05 May 05 16 46 27 be Sa aa TE uns li np eet E FETA n 125m RT Fye Plot Summary m amp TEAR Ec LU D D 500 1 400ps 200ps Qos 20005 400s TIE Jitter trum ps ye Diagram eo CO Vokage m 200 BER o 100 Histogram hits Jitter 3 Bathrub Curve Q EL Orns 100ps 2 Click this icon to return the plot summary E to the upper half of the screen RT Eye Plot Summary JSS HFA EF A e 26 RT Eye Quick Start User Manual Using the RT Eye Software 3 Click this icon to display the plot summary full screen aS Hea as e RT Eye Plot Summary amp amp i amp C305 AR ars 0 5 1 a o tE 4 gt g ul ru z pie 0 SG u
79. s Log Utilities Help 4 nT Eve x Repon Generator Serial Analysis Define Test Template Define Report Layout Geneiaie Repon Start step 5 i 5 tofumoduler SeralAnalysistLayoutstS a rpl Clear Results Generate Single Run Y The report that you selected is displayed ini You can print the viewed report See E page 37 Printing a Report DE NE iM SB Be 2 Test ort for Serial Analvsis Click the Close icon to close the Report 24 May 2005 15 46 56 Viewer gt Pagelofs 2 Printing a Saved Report without Viewing 1 To print a saved report without viewing it File Modules Measurements Plots Results Log Utilities Help RTE x in the Report Viewer perform steps 1 tier rch Serial Analysis Define Test Template Define Report Layout Geneiate Repor through 5 of the preceding procedure Stat Stop and then click Print EA Todule Serial na hsi ETT STD Browse Clear Results i ipe d Generate M i d Single Run Y RT Eye Quick Start User Manual The Report Viewer window opens and a Report Viewer print dialog box displays After the print job is sent both windows close Note that the instrument does not display a Print setup dialog box when the report is printed using this method Logging Worst Case Waveforms Using the RT Eye Software ga Tie Jit Report Viewer B l0 gt Fie Edt wiew Object Heb eH tees UR P1 5 2 A lD Blea 9 le B RE Report Viewer Primi
80. s Math Wtilities Help k DYI Compliance Test Solution Ethernet Compliance Test Software Jitter Analysis Advanced ter Analysis Essentials RT Eye Serial Compliance and Analysis CirH P L Recent Setu Fie 1 Minimize Shutdown Cire RT Eye Quick Start User Manual amp For B and C model oscilloscopes select App gt RT Eye Serial Compliance and Analysis The RT Eye application displays in the lower half of the screen Running the Setup Wizard 3 If the RT Eye Welcome dialog box displays click Run Wizard 4 Ifthe RT Eye Welcome dialog box does not display select Measurements gt Wizard RT Eye Quick Start User Manual Application Examples Ple Edit Wertical Hori Acq Trig Display Cursors Measure Macks path IE utilities Help Button RT Eye Serial Compliance and Analysic Fie Edit Vertical Horz Ac Trig Disolay Cursors Measure Masks Math Utilities Help Tek Slopped Single Seq ag veie Probe Type Differential v serial Analysis Start Timing Amplitude Jitter X Eve Height Voltage BER Clear Results Rise Select TIE Jitter e Time j HAE Time Amplitude xp ep das Single Run enu Meas gt Select S mle re eee dala 2o TM File Modules Measuremer vm i 2E x RT Fye Welcome Probe Type Ditferentia Timing ores Run My Test ra Eve Height run wizard j Clear Results Time Time Single Run ad
81. sampled deskewed data from the oscilloscope to conduct math operations for differential and common mode waveform measurements Upsampling prior to deskew is required to ensure accurate measurements For more information about probes refer to Choosing the Probe Configuration in the RT Eye Serial Compliance and Analysis Online Help 8 RT Eye Quick Start User Manual Calibrating the Oscilloscope and Probes Getting Started NOTE To ensure accurate results calibrate the oscilloscope and probes before you run tests Refer to your oscilloscope and probe documentation for additional information 1 Click Utilities gt Instrument Calibration A ee Ss Se oo to begin calibrating the oscilloscope for Tek Stopped Single Seq signal path compensation 2 Click Calibrate Calibration Instructions Signal Path Compensation SPC corrects for DC inaccuracies caused by temperature variations or by longterm drit Allow the oscilloscope to warm up 20 minutes before running SPC Aun SPC whenever the ambient temperature of the oecilloscope hae changed by more than 5 C SPC willbe adversely affected by inpul signals with AC components Disconnect any probes or input signals before running SPC SPC cantake u p toten minutes to run 3 After the SPC compensation finishes Fle Edt Vertical Horz acq Trig verify that the Status is Pass select ZEE vertical Setup Vertical gt Probe Cal Zoom Controls Display OnjOff PositionfScale
82. scale selecting 48 Toggling masks 48 Vertical scale selecting 48 Connection to device under test 6 Conventions used in this manual iv CSV file exporting to 35 Cursors D Positioning 30 Readouts 30 Resetting 30 Turning off 30 Using 30 Defining Peferences 12 83 Index Defining preferences Autoset Summary dialog window 13 High performance eye rendering 13 Welcome window 13 Deskew probe 8 Details viewing plot summary 27 Device under test connections to 6 Docking the application 16 Documentation iv E Examples application 68 Exiting the application 18 Exporting plots Data file 31 Graphics file 31 F Features key 1 G General Config See Configuring Measurements H Hiding the application 14 High performance eye rendering 13 Installation 5 Interface user 20 J Jitter See Configuring Measurements Jitter configuring for 61 K Key features 1 Keyboard 5 84 L Limits Compacting a Limits File 65 Limits File Editor 64 Limits File browsing for a 64 Limits File editing 65 Limits File saving a 66 Limits Window displaying 64 PASSFAIL 67 Setting 64 Summary of limits 65 Summary table example of 66 Toggling on or off 64 Using 67 Validating a Limits File 65 Viewing 64 Location of application directories 21 Logging worst case waveforms 41 Manual conventions iv MATLAB 4 Measurements Additional for Single Ended 45 Autoset
83. splay A Eye Width Y Eye Diagram Y Clear Results TIE Jitter T Spectrum Y EN E TA TIE Jitter v Histogiam a Jitter BER Bathtub Cuve F Mode Single Run Y Eye Height ents Plots Results Log Ulililies Help Eye Height Non Trans Bi T S Eye Height Transition Bi Rise Time Start Stop Fall Time T Plots Display Plots Unit Interea M Clear Results Serial Analysis TIE Jitter T r V EZ TIE Jitter r Histogram Y Jitter BER Y Bathtub Cumra Y Mode Single Run Y File Modules Measurements Plots Results Log Utilities Help ye Em x Select Configure TEPEE ant Plot Type Plots Display Eve Width Eye Diagram Y NE Jitter Eye Diagram E TIE Jitter Jitter i BER Bathtub Cuve Y Single Run Y RT Eye Quick Start User Manual Configuring Plots After you have selected the Measurement and associated plot type you can further configure each of these To configure a plot perform the following procedure 1 Click Configure The controls in the Configure section vary depending on the type of measurements and plots that you previously selected in the Select window 2 In this example click 1 to display the Configure controls for an Eye Diagram plot 3 Click the Bit Type drop down box and select the bit type that you want 4 Click On or Off to toggle the display of masks 5 Click Browse The Masks window opens 6 Select the mask file that you want to use and then clic
84. surement 28 Select TIE Jitter from the Measurement drop down box 29 Select Max from the Statistic drop down box 30 Enter 60ps in the Upper Lim box 31 Click Save As The Save window displays RT Eye Limits Editor E File Add Measurement Statistic Lower Lim Upper Lim TIE Jitter RT Eye Limits Editor E File Add 27 Statistic Lower Lim Upper Lim EJ al TIE Jitter TIE Jitter RT Eye Quick Start User Manual Application Examples 32 Enter Jitter lim as the file name E x 33 Click Save oE The Save window closes E 2 em FY PcIEX ADD limits lim P5 PcIEX SYS limits lim File name Files of type Limit Files lim 34 Close the RT Eye Limits Editior window RT Eye Limits Editor x File Add Measurement Statistic Lower Lim Upper Lim TIE Jitter 50 ps TIE Jitter ror n MLLLLT pmm uu 35 Click Browse File Modules Measurements Plots Results Log Utilities Help KO nT Eve x Limits File Fditor Limits File CAT ekApplicationsidst eyelmodules S Mode Single Run Y RT Eye Quick Start User Manual TT Application Examples 36 Select Jitter lim as the limits file 37 Click Open The Limits browse window closes 38 Click On 39 Select Results gt Details 40 Click Clear Results 41 Click Start 42 Select TIE Jitter 43 Note the PASS FAIL status of the measuremen
85. sv files from the selected directory click Purge T Click Start to take your selected measurements The measurement results display in the Results Summary window 8 Select Log gt Worst Case gt File Names The File Names window displays the names of the measurements sources and worst case file names 9 To turn off logging click Config 42 d limits Hase w setup Eemo File name CAT ebApplic ationstidst eye modules SerialAnalysiswayeto rms Files of type All Files File Modules Measurements Plots Results Log Ulililies Help EO py Eye x Config File Names Serial Anabysis Worst Case Waveforms Start Stop Log Log Directory Select X EM oo WnodulestS erialAn alysisuwavetorms el Results Vid nesvic Purge the log files in the selected directory T Single Run Menu Lag gt Worst Case File Modules Measurements Plots Results Log Ulililies Help EO pn puo x Worst Case gt Configure Serial Analysis Result Summam Seleot Views File Names s z Stan Stop Measurement Mean Nr Mi ax Fk Fk Eye Width 0 amp 310UI O 6310Ul 0 6310U 0 0000U gt Eve H All Bits 320 54mv 329 54mY 32854mv 0 00004 Eye H Nom Tr Bit 466 07mV 486 07mV 4 amp 8 07mv 0 0000y Clear Results Eye H Trans Bits 320 5dmv 32054mv 32054mv 0000 Rise Time O4666UI OA0EBUI O 2400U l 8 0 1433U Fall Time 0 1600UI 0 00G5UI 0 2617U 0 1622U Unit Inte real 1 0000UI OS369UI 1 0047U
86. t Help Topics PDF Help Select Configure Quick Start Guide About RT Eye Select Configure Source Limits Ref Levels Wizard Smart Gating Run MyTest Clock Recovery Save MyTest Jitter File Names Population General Config FB DIMM InfiniBand SAS Details Serial ATA Serial Analysis 1769 006 Modules will not display on oscilloscopes with a bandwidth less than 6 GHz 20 RT Eye Quick Start User Manual Locating the Application Directories During installation the RT Eye application sets up directories for various functions such as to save setup files masks and waveforms The default directory structure is shown RT Eye Quick Start User Manual BJ SerialAnalysis File Edit wiew Favorites Tools Help da Back p zl A Search Bj Folders amp d WI X uc Eg EE Folders E C tdsrt eye g C3 Examples ce images E L1 Masks E E modules waveforms H O FBDIMM HL amp L InfiniBand E L3 PCIExpress Br sas pe SATA 7 waveforms m ae ReporkGenerstor LH temp Operating Basics ris mdr File Folder File Falder File Falder File Folder 4 a Ir objectis I bytes My Computer Z 21 Using the RT Eye Software Using the RT Eye Software Setting Up the Application You must set up the RT Eye application for serial data analysis The general steps that you do are shown in the diagram After taking measurements you can do the following tasks 22
87. t User Manual Related documentation iv Relevant Web Sites iv Reports Accessing the Report Generator 36 79 Compliance 36 Creating new 36 Directory 36 Example of 37 79 File formats 36 Generate button 36 79 Generating 36 Moving the Report window to the front 37 79 Printer icon 37 Printing 37 Printing a saved report 38 40 Report generator utility 36 Saving 38 Selecting a printer 37 Viewing a saved report 38 Requirements keyboard 5 MATLAB 4 minimum 2 Results Accessing the Detail View 35 Accessing the Summary View 34 Detail view 34 Detail window example 35 Exporting to CSV file 35 Measurement selection for details 35 Summary view 34 Time Units selecting 35 RT Eye Quick Start User Manual S Safety Summary iii Save MyTest check box 19 Sequencing Controls 17 Modes Free Run 17 Single No Acq 17 Single Run 17 Stop 18 Setup Wizard Access from menu 24 69 Access from Welcome window 23 Example display 25 Probe type selecting 24 Running the 25 Selections making 24 Summary windows example 25 Using the 23 Setup saving a 43 Smart Gating See Configuring Measurements Types 57 Source Configuring See Configuring Measurements Standard accessories 5 Starting the application Newer instruments 11 23 Older instruments 11 23 Structure menu 20 System bandwidth 6 T Time units selecting 35 Index U Undocking the application 16 User interface 20 V
88. t limits that you set up in the Limits file 78 am limits tim 3 Fj PCIEX_ADD_limits 1in a m PCIEX SYS limits lim All Files File Modules Measurements Plots Results Log Utilities Help Limits Limits File Editor Limits File CATekApplicationsWdsit eyelnod MES Bronse Moda Single Run File Modules Measurements Plots Results Log Utilities Help AA Summary gt Serial Analysis Show Plot j St Sto Result Statistic a Status sleek iia Population a 29 A Export JEA D Mean b E To CSV StdDew m Clear Results Max 141 Min 0 000 ps E OL Ph Pk Time Ur Moda amp d B i Single Run wY Utilities Help VO nT Eve x Serial Analysis Log File Modules Measurements Plots Results TIE Jitter Start Stop Result Statistic is Ac All Acgs Lowser Lim Upper Lim y em Population 125 12500 h j Tes te an 5 1617ps 6 1617 ps Saar n SOR Re 54 SITIS SidDev 20 2860ps 20 Z290ps Clear Result Max s4 488p 844398ps 60 000 ps FAIL son Min 8548ps lt 2 646ps 60 000ps PASS 127 15ps Mode Single Run ad RT Eye Quick Start User Manual Creating a Compliance Report You have taken measurements viewed plots added an industry standard mask to your eye diagram and created a Tie Jitter limits file Now you will generate a compliance report Perform the following steps 44 Select Utilities gt Reports 45 Click Generate Wait until the report generator is finished Whe
89. trum approach to jitter measurements refer to the MJSQ Methodologies in Jitter and Signal Quality PDF file at http www t11 org ftp t11 pub fc mjsq 04 101v4 pdf Using a Mask You have taken your measurements and viewed the associated plots Now you will display a custom or industry standard mask on the Eye Diagram plot 11 Select Plots gt Config File Modules Measurements Plots Results Log Utilities Help Select Me Jitter amp BER VON Show Plot Start Stop Result Statistic This Acq All Aegs ELA Ue Status Eye Opening BER O 6468uUl 0646801 Export EA E Total Jite BER 0 3532UI 0 3532UI To CSV Random Q 0104UI 0010401 Clear Results Deterministic O 26817U1 026170 E Data Dependent O 4533UI O 1583Ul Periodic D0272 O O0B8zUI Moda 0044511 Time Units Unit Internal Y Single Run Y 12 Click 1 modules Measurements Plots Results Log Utilities Help 5 PPP 13 Click Browse Select Configure Start Stop The browse window opens Measurement Subplot SEM Ez wj T Mask ear Results 2 TIE Jittar Spectrum Ew TIE Jitter Histogram EN Jitter BER Bathtub Curve icationsWddsit eye um asks user msk Mode Single Run Y 72 RT Eye Quick Start User Manual Application Examples 14 Locate and select the PCI Express folder in the Masks directory 15 Click Open Ethernet dl a Fibre Channel InfiniBand rot SAS SATA E Serial Rapidio g Readme uer mk 16 Sele
90. vel compliance tests for available compliance modules that test against a specific standard save the statistical results to a file save the worst case waveforms to files Generate reports Using Compliance Modules You can purchase separate compliance File Modules Measurements Plote modules for the RT Eye application such as Infiniband PCI Express FB DIMM and FB DIMM SAS These are specific tools that you can InfiniBand use to ensure that device designs comply with specific serial data standards The PCI Express compliance modules available to you are GAG Differentia listed in the Modules menu Serial ATA Voltage abrial Analysis High Amplitude RT Eye Quick Start User Manual 1 Getting Started This manual only discusses the operation of the Serial Analysis module However the compliance modules may include specific help files and PDF files of Methods of Implementation MOI that explain how to use the compliance module Ensuring Compatibility 232 ipid About the Opti ou tie vpuon XR UNDE LI Help The Option SST An Ic o and SAS that are A a ga iu T 9 Search Adobe PDF files Serial Compliance gt m ae gp wu e 56 T Windows based os s 1 L 56 e lE malt Soy eBocks L LN RE Pu pe You can use these Advanced Technolo Attached SCS SA results are displaye tant File Modules Measui Online Help Tektronix PCI Ex
91. vels either manually or using Autoset the application will use default values which may cause unexpected measurement results Note that the Autoset button in the Measurements gt Select window performs an autoset on the horizontal scale vertical scale and reference level See page 45 Selecting Measurements and Using Autoset To set the reference level values automatically which is the preferred method perform the following procedure File Modules Measurements Plots 1 Click Ref Levels Results Log Utilities Help RT Eye x The Ref Level Autoset Setup window Source Ret racy Smart Gating ClockRecowern Jitter Population General Contig dis Source T Set Reference Level D ays Chi Fall Autoset 2 Click Run Me High e Setup im Uu d ri Iv Mid 0w Hysteresis Low or Dnus 228 mV 226m 56 RT Eye Quick Start User Manual Using the RT Eye Software Smart Gating Use gating to narrow the analysis to an area of the waveform specified by a gated region filtering out unnecessary information The Smart Gating window has controls for two types of gating You can gate the region using vertical cursors or you can use smart gating If you use smart gating you must set up a clock recovery window and an analysis window within the specified clock recovery window Using Cursors to Set a Gated Region To set a gated region using cursors perform the following procedure 1 In the instrument menu bar select IERI
92. y kind either express or implied Tektronix does not warrant that the functions contained in this software product will meet Customer s requirements or that the operation of the programs will be uninterrupted or error free In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period If Tektronix is unable to provide a replacement that is free from defects in materials and workmanship within a reasonable time thereafter Customer may terminate the license for this software product and return this software product and any associated materials for credit or refund THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPLACE DEFECTIVE MEDIA OR REFUND CUSTOMER S PAYMENT IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES Table of Contents Table of Contents General Safety SUMMANY cescobesidorpue quoa dRD MU POPPEM dessa oM ie PEEL SM oer SIM IE LOIDE I SRI LO PU ii gir
93. ys the results in the Result Summary window To run MyTest from the RT Eye Welcome dialog box which displays when you start the RT Eye application perform the following procedure 1 Start the RT Eye application The RT Eye Welcome dialog box displays 2 Click Run MyTest The application takes the measurements and displays the results in the Result Summary window 44 File Modules Measurements Plots Results Log Ulilities Help Contig File Names Serial Anabhysis ei RT Eye ER xl Stat Stop Lor xa Do you want to restore the oscilloscope settings to the State prior to starting RT Eye Clear Result Wode Single Run File Modules Measurements Plots Results Log Uliliies Help Eyg E x Canfig File m Select Configure S tial Anabysis Start Ste P Clear Result Mode Lal forst Case Waveforms Log Directory SeralAan alsisusavetomms Single Run oe File Modules Measuremer zm od dtat t s isis tM r x RT Eye Welcome AS i Serial Anabysis Start Stop eal Clear Result as p AOT renner eee Eye Height Intenra Tima Mode Single Run Pv show this dialog at startup RT Eye Quick Start User Manual Using the RT Eye Software Selecting Measurements and Using Autoset You may want to take measurements other than those set up by the wizard To select specific measurements perform

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