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9-9

IM 704510-01E

Statistical Calculation and Inter-Symbol Interference Analysis

Explanation

Selecting the Display Style

By turning OFF Overlap, the histogram of the extracted data and that of all spaces or

marks can be displayed separately.

Turning ON/OFF the Sync Function

Select ON to start analyzing from the searched pattern using the symbol search function

or OFF to analyze the all the measured values. For the setup procedure of the symbol

search function, see section 8.6, “Symbol Search”.

Statistical Parameters That Are Listed

The statistics of all marks (spaces) and extracted data and the number of samples are

listed for each window. The statistical calculation parameters are set using the

Calculation/Statistics Setting dialog box (see page 9-6). However, only the top two

parameters are displayed.

Selecting the Extraction Mode

Select from the following.

• Single:

Activates the trigger on a Space or Mark and analyzes the data around

the trigger.

• Combination: Uses the sequence of a space followed by a mark or a mark followed

by a space as a trigger and analyzes the data around it.

• Between:

Uses a mark or a space existing between two spaces or two marks as

a trigger and analyzes the data between them.

Selecting the Polarity of Mark/Space

Select whether spaces will be positive (+) or marks will be positive (+).

Selecting the Trigger/Selecting the Data to Be Extracted

You can select which mark or space will be used as a trigger. The types of trigger that

can be selected vary depending on the extraction mode.

The data around or between triggers can be extracted, but the data that can be extracted

vary depending on the extraction mode as shown below. In the table below,

represents a space and

represents a mark. On the TA720, you can select which

window will be marks and which will be spaces.

• Pulse width measurement or pulse width A

→

pulse width B measurement.

Mode

Trigger

Target

Explanation

Single

Prev.

/Next

/Both

Extracts the data immediately before or

Prev.

/Next

/Both

after the trigger or both

Combination

Prev.

/Next

Extracts the data immediately before or

Prev.

/Next

after the trigger

Between

–

Extracts the data between two spaces

–

Extracts the data between two marks

9.2 Setting the Inter-symbol Interference Analysis

Summary of Contents for TA720

Page 1: ...Time Interval Analyzer IM 704510 01E 1st Edition ...

Page 2: ...ing YOKOGAWA products YOKOGAWA provides registered users with a variety of information and services Please allow us to serve you best by completing the product registration form accessible from our homepage http www yokogawa com tm PIM 103 01E ...

Page 3: ... in this manual may differ from the actual screen Every effort has been made in the preparation of this manual to ensure the accuracy of its contents However should you have any questions or find any errors please contact your nearest YOKOGAWA dealer as listed on the back cover of this manual Copying or reproducing all or any part of the contents of this manual without the permission of Yokogawa E...

Page 4: ... Q BS Standard Power Cord Part No A1054WD Maximum Rated Voltage 250 V Maximum Rated Current 10 A R SA Standard Power Cord Part No A1024WD Maximum Rated Voltage 240 V Maximum Rated Current 10 A Options C10 Ethernet PC card drive E3 FET probe 700939 2 probes NO Instrument Number When contacting the dealer from which you purchased the instrument please give them the instrument number Standard Accesso...

Page 5: ...NC length 1 m BNC cable 366925 1 BNC BNC length 2 m Rubber feet A9088ZM 2 Two rubber feet in one set Rack mount kit 751535 E4 1 For EIA Rack mount kit 751535 J4 1 For JIS Spare Parts Sold Separately The spare parts below are available for purchase separately Part Name Model Part Number Minimum Q ty Description Printer roll paper B9850NX 5 Thermalsensible paper total length of 30 m Power fuse A1351...

Page 6: ...nner not specified in this manual the protection provided by the instrument may be impaired Yokogawa Electric Corporation assumes no liability for the customer s failure to comply with these requirements The following symbols are used on this instrument Handle with care To avoid injury death or damage to the instrument the operator must refer to the explanation in the User s Manual or Service Manu...

Page 7: ...ity of Protective Grounding Never cut off the internal or external protective earth wire or disconnect the wiring of the protective earth terminal Doing so poses a potential shock hazard Defect of Protective Grounding Do not operate the instrument if the protective earth or fuse might be defective Make sure to check them before operation Fuse To avoid the possibility of fire only use a fuse that h...

Page 8: ...s lists and statistics Chapter 8 Detailed Display Setup Describes how to set the single multi or auto mode of each window how to change the scale and how to read the measurement results using markers Chapter 9 Statistical Calculation and Inter Symbol Interference Analysis Describes how to set the range and items of statistical calculation and how to use the inter symbol interference analysis funct...

Page 9: ...ons to actions or conditions that could cause light injury to the user or damage to the instrument or user s data and precautions that can be taken to prevent such occurrences Note Calls attention to information that is important for proper operation of the instrument Symbol Marks Used for Descriptions of Operations On pages that describe the operating procedures in chapters 3 through 14 the follo...

Page 10: ...Starting Measurements 3 1 Handling Precautions 3 1 3 2 Installing the TA720 3 3 3 3 Connecting to the Power 3 6 3 4 Turning ON OFF the Power Switch 3 7 3 5 Connecting Cables and Probes 3 8 3 6 Calibrating the Probe Phase Correction 3 10 3 7 Setting the Date Time 3 12 Chapter 4 Common Operations 4 1 Basic Setup Procedure 4 1 4 2 Starting Stopping Measurements 4 2 4 3 Basic Operation of Keys and Rot...

Page 11: ...sults Using Markers 8 12 8 6 Symbol Search 8 14 Chapter 9 Statistical Calculation and Inter Symbol Interference Analysis 9 1 Setting the Range and Parameters of Statistical Calculation 9 1 9 2 Setting the Inter symbol Interference Analysis 9 5 9 3 Examples of Inter symbol Interference Analysis 9 12 Chapter 10 Storing Setup Information to the Internal Memory and Recalling Setup Information 10 1 Sto...

Page 12: ...and Maintenance 14 1 Troubleshooting 14 1 14 2 Messages 14 2 14 3 Displaying the Error Log 14 5 14 4 Self Test 14 6 14 5 Adjusting the Time Base 14 9 14 6 Performance Test 14 11 14 7 Replacing the Power Fuse 14 21 14 8 Recommended Replacement Parts 14 22 Chapter 15 Specifications 15 1 Signal Input and Trigger 15 1 15 2 Measurement Functions Measurement Items 15 2 15 3 Gate Arming and Inhibit 15 5 ...

Page 13: ...he procedure to save the screen image see section 11 13 Inhibit input terminal Used to externally inhibit measurements For a description of the inhibit input see section 2 5 For the procedure to set the inhibit input see section 6 4 External arming input external gate input shared terminal Used to externally control the start of measurements external arming or externally control the sampling time ...

Page 14: ...unication User s Manual IM704510 17E Inlet holes Ethernet port optional Used when connecting to a LAN The LINK LED illuminates when communication is possible The TX LED blinks when packets are transmitted For a description of the Ethernet communications see chapter 12 PC card slot optional Used when saving data to a PC card For a description of how to use the PC card see section 11 2 For the proce...

Page 15: ... 10 sections 11 3 to 11 10 12 2 to 12 5 13 2 13 6 13 7 14 3 and 14 4 Shows a menu used to set communication parameters setup data store recall self test calibration and other items Pressing the SHIFT key followed by this key shows a menu related to the storing or recalling of the setup data measured results and statistical computation result and other items LOCAL COPY MENU SHIFT COPY AUTO SCALE AU...

Page 16: ...ntered through the numeric keys and when confirming the value Key Used to move along the digits when setting a value and for other purposes sec V MHz ENTER 0 1 2 3 m 4 5 6 7 8 9 n Numeric Keys Sections 4 3 and 4 4 Used when entering values Press the 0 to 9 and keys to enter the value and decimal point as necessary and press the ENTER key to set the value To set prefix symbols n µ or m or units MHz...

Page 17: ...cedure for displaying the error message see section 14 3 Displaying the Error Log Appears when the lithium battery is flat or the system is faulty Perform the self test when this icon appears For the procedure for executing the self test see section 14 4 Self Test 5 Busy icon Appears during the following operations Blinks when any of the floppy disk PC card or network drive is being accessed For t...

Page 18: ... section 8 5 Reading the Measured Results Using Markers 10 X axis center It is possible to set the center value of the X axis of the histogram display For the procedure for changing the scale values see section 8 4 Changing the Scale Values of the Histogram Display and Time Variation Display 11 Window setup parameters Shows the window mode constant T and the polarity of the measurement function Fo...

Page 19: ...s Data number of measurement 1 Time stamp of measurement 1 Measured value of measurement 1 Data number of measurement 2 Time stamp of measurement 2 Measured value of measurement 2 Measurement function and slope Time Variation Display in Time Stamp Mode For a description of the time variation display see page 2 15 Setup parameters Panorama display Statistics display Time variation display X axis ma...

Page 20: ...s Mode For a description of the inter symbol interference analysis see page 2 24 Setup parameters Histogram display of all Mark data Histogram display of extracted Mark data Statistical values of extracted Mark data Statistic values of all Mark data Window label 1 3 Display ...

Page 21: ...ram display in hardware histogram mode These are now possible on the histogram display in time stamp mode Symbol Search Function See page 2 20 A specified symbol 1T to 16T can be searched on the multi window or auto window in the list display of the time stamp mode or inter symbol interference mode Deviation or σ Graph on the Histogram Display See page 2 14 The statistical value deviation or σ can...

Page 22: ...ck Diagram Trig Input AMP DAC PLL Clock Generator T V Converter CPU LCD Printer FDD GP IB CH A EXT ARM EXT GATE INHIBIT 10MHz REF IN 10MHz OUT 10MHz Reference Monitor OUT A Trig Input AMP DAC CH B Monitor OUT B Acquisition Controller Signal Multiplexer Fractional Pulse Generator DATA Control Comparator Comparator External Arming Signal Inhibit Signal Measuring Clock 1 T V Converter Acquisition Mem...

Page 23: ...can be used as the reference clock The measurement clock uses the frequency multiples of this reference clock In either case the signal passed through a 10 MHz bandpass filter is output externally as a 10 MHz signal 10MHz OUT The gate output GATE OUT terminal outputs binary signals indicating the measurement interval time over which the signal is being acquired The TA720 can be controlled using a ...

Page 24: ...ory Based on the acquired data the measured and computed results can be displayed in three formats histogram list measured values and frequency and statistics The maximum sample size is 109 and the maximum sampling time is 3200 s Inter symbol Interference Analysis Mode ISI As with the time stamp mode the time stamps and measured values are stored in the acquisition memory Based on the acquired dat...

Page 25: ...the slope is set to rising edge Measured Measured Measured A to B Time Interval TI see section 5 3 for the operating procedure Measures the time between the specified edge of the CH A input signal and the specified edge of the CH B input signal Time interval cannot be selected in inter symbol interference analysis mode The slope for detecting the edge can be selected from six combinations of the C...

Page 26: ...idth of the CH A input signal and the A to B time interval simultaneously The polarity of the pulse width measurement of the CH A input signal is fixed to both The slope of the A to B time interval measurement can be set to the rising falling edge of the CH A signal to the rising or falling edge of the CH B signal However in inter symbol interference analysis mode the slope for the A to B time int...

Page 27: ...ulse width measurement Measurement edge interval is 12 5 ns or more A to B time interval measurement Measurement edge interval of the CH A input signal is 12 5 ns or more and the measurement edge of the CH B input signal to the measurement edge of the CH A input signal is 0 ns or more S1 S2 S3 S1 S2 S3 S1 S2 S3 S1 S2 S3 S2 S3 S1 CH A CH B S2 S1 CH A CH B When measuring period 12 5 ns or more 12 5 ...

Page 28: ...gnal and using the its ON OFF open close of the gate states You can select the polarity of the gate signal for opening the gate The allowable time that the gate can stay open is within the maximum sample size of each sampling mode in the range of 1 µs to 320 s S1 S2 S3 External gate input signal Input signal Gate open 1 measurement block Note The external gate input terminal is shared with the ext...

Page 29: ...urement is delayed by a specified time selectable range 1 µs to 10 s Event delay The starting of the measurement is delayed by a specified number of events selectable range 1 to 1 to 106 Inhibit see section 6 4 for the operating procedure Measurement inhibit period within the gate can be specified by applying an external inhibit signal The measurement inhibit period can be specified even while the...

Page 30: ...ed varies depending on the sampling mode as follows When in time stamp mode The histogram list or time variation for each measurement block can be displayed and statistical calculations can be performed The maximum selectable block size number of repetitions N is 250 However the block size can be set up to 1000 if there is no pause time When in hardware histogram mode Histogram or list of all meas...

Page 31: ... terminal Input amplifier DC The signal is input directly to the amplifier This setting is used when measuring both the AC and DC components of a signal Signal input terminal Input amplifier Trigger Mode Trigger Trigger Level Level see section 6 6 for the operating procedure The act of determining the measurement start point when measuring a single sample on the TA720 is called activating a trigge...

Page 32: ...ment functions A to B time interval period A A to B time interval pulse width A A to B time interval pulse width A A to B time interval The phase shift can be used to correct the offset of the phase of the CH B input signal with respect to the CH A input signal due to causes such as the differences in the cable when measuring the A to B time interval The selectable range is 0 0 to 10 0 ns resoluti...

Page 33: ...dure for setting the scale values see section 8 4 Changing the Scale Values of the Histogram Display and Time Variation Display Y axis maximum Y High X axis span X span Right end value of the X axis Positive displacement from the X axis center X axis center Median value of the center value X Center Bin Left end value of the X axis Negative displacement from the X axis center Y axis scale Linear or...

Page 34: ...ified by the gate When using block sampling time stamps elapsed times of measurement and measured values can be displayed by specifying a measurement block number When measuring a single measurement function the time variation waveform is displayed on the right side The specified data number is highlighted and a dotted line and a mark is displayed at the position of the time variation waveform cor...

Page 35: ... axis minimum X axis span X span Negative displacement from the Y axis center X axis minimum X minimum Reading Measured Values Using Markers Measured values can be read using markers For a description of this function see Reading the Measured Results Using Markers on page 2 19 Various Display Formats In addition to time variation panorama window see page 2 17 can be displayed The display frame can...

Page 36: ...eak σ σ Average σ T Deviation Deviation T Median Mode When time variation is selected T Average T Maximum T Minimum T Peak Peak T σ T σ Average T P P Average T RF The area for performing statistical calculation can be set to Window entire window Marker area enclosed by markers or Block measurement block In addition when the area for performing the statistical calculation is set to Block and the so...

Page 37: ... 8 2 for the operating procedure When the distribution of the data of one measurement block is distributed over multiple center values on the X axis multiple histograms are created You can simultaneously display all the histograms in the main window However you can also set multiple windows and display each histogram in its own window and observe it in detail The function that allows for the setti...

Page 38: ... period T is measured and the X axis values are automatically set The following modulation methods are supported EFM modulation EFM modulation 1 7 modulation There are two methods of automatic setting Measured T Apply the input signal to CH A and the read out clock signal to CH B The value of T is measured from the period of the clock signal Estimated T The value of T is estimated from the average...

Page 39: ...eadout values Note The Y marker on the histogram display is used to set the area for performing the statistical calculation see page 2 21 For time variation displays Four markers X1 X2 Y1 and Y2 can be displayed and the following values readouts can be read X1 X coordinate time stamp V1 Y coordinate measured value of the of the X1 marker X1 marker X2 X coordinate time stamp V2 Y coordinate measure...

Page 40: ...bol interference analysis mode a specified symbol can be searched as shown in the following figure Up to 4 continuous symbols can be specified 14 specified Ts between 1T and 16T are applicable and combinations can be searched Mark 3T 4T 6T 10T Space Space Mark Symbol 1 Symbol 2 Symbol 3 Symbol 4 6T 5T 4T Mark Space Mark Searches these items Searched section 2 6 Displaying the Measured Calculated R...

Page 41: ... Polarity Calculation Polarity You can specify the slope and polarity for the statistical calculation only for the following measurement functions The statistics can be calculated separately on data having the specified slope or polarity A to B time interval measurements when the slope setting is either A B or A B Pulse width measurements when the polarity setting is Pulse width A A to B time inte...

Page 42: ...σ Xi Average 2 1 n Σ n i 1 Flutter σ Average Calculates the flutter This indicates the spread in the values in terms of a percentage of the average value σ Average 100 σ Average σ T only for histograms Calculates the histogram jitter using the specified constant T Indicates the spread of the values in terms of a percentage of the value T σ T 100 σ T Deviation only for histograms XCENTER is the cen...

Page 43: ... page 2 13 Average Calculates the average value of the histogram Pi is the relative frequency Average Xi Pi Σ n i 1 If the total number of samples on which the statistics are being calculated is N and the frequency of occurrence number of samples of a certain bin is Ni then the relative frequency becomes Pi Ni N Maximum Indicates the maximum median value Maximum Xi max Minimum Indicates the minimu...

Page 44: ...ated In addition the histograms and statistics of all marks and spaces of the measured data can be displayed at the same time In the dual measurement function the following inter symbol interference analysis is possible Analysis Example of Pulse Width Extracting the mark data before the 3T space 3T Space Mark Mark 3T 3T 3T 6T 11T 11T 14T 7T Space Space Space Mark Mark Mark Trigger Extract Histogra...

Page 45: ...ter symbol interference analysis mode Therefore dropouts in the measured values are filled with asterisks according to the following conditions in the sampling of the dual measurement function Measured data and analysis results are displayed only if the following conditions are met Maximum number of dropout samples that can be filled 256 Conditions for filling the samples When the dropout sampling...

Page 46: ... Recalling Setup Data see chapter 10 for the operating procedure Up to 32 sets of setup data can be stored in the internal non volatile memory The stored setup data can also be recalled to set up the instrument This function is useful when the same setup is used often Saving and Recalling Data to from the Floppy Disk or PC Card see chapter 11 for the operating procedure The TA720 comes with a flop...

Page 47: ... changes drastically Changing the Beep and Click Sounds see section 13 7 for the operating procedure A beep sound is heard when an error occurs The beep sound can be turned OFF You can also select to turn ON or OFF the click sound that is heard when the rotary knob is turned Error Logging see section 14 3 for the operating procedure When a data error such as a data overflow or a communication erro...

Page 48: ...ON the power switch again it is probably a malfunction In this case contact your nearest YOKOGAWA dealer Nothing should be placed on top of the power cord The power cord should also be kept away from any heat sources When unplugging the power cord from the outlet never pull by the cord itself Always hold and pull by the plug If the power cord is damaged contact your dealer for replacement Refer to...

Page 49: ...act can lead to malfunction When cleaning the case or the operation panel first remove the power cord from the outlet Then wipe with a dry soft cloth Do not use volatile chemicals such as benzene or thinner for cleaning as this may lead to discoloration or deformation 3 1 Handling Precautions ...

Page 50: ... another place where the ambient temperature is higher or if the temperature changes rapidly In such case let the instrument adjust to the new environment for an hour before using it Well Ventilated Location There are vent holes on the top bottom and side panels of the instrument The rear panel contains an inlet holes for the cooling fan To prevent internal overheating allow for enough space aroun...

Page 51: ... rear side facing down as the cooling vents will be obstructed There are inlet holes for the cooling fan on the rear panel Placing the instrument with the rear side down can cause a fire when the instrument malfunctions If you must use the instrument with the rear panel down place a metal plate or a flame resistive barrier grade UL94V 1 or higher beneath the instrument Place the instrument in a ho...

Page 52: ...r feet on the bottom of the instrument 3 Remove the two plastic rivets and the four seals covering the rack mount attachment holes on both sides of the instrument near the front 4 Places seals over the feet and handle attachment holes 5 Attach the rack mount kit 6 Mount the instrument on the rack Note When rack mounting the instrument allow at least 2 cm of space between the bottom side of the ins...

Page 53: ...therwise the protection function will be compromised Connection Procedure 1 Check that the power switch on the front panel is OFF 2 Connect the power cord plug to the power connector on the rear panel Use the power cord that came with the package 3 Connect the plug on the other end of the power cord to the outlet that meets the conditions below The AC outlet must be of a three pin type with a prot...

Page 54: ...wer switch is turned ON turn OFF the power switch and check the following points Check that the power cord is plugged in properly Is the correct voltage coming to the power outlet See section 3 3 If the TA720 still fails to power up when the power switch is turned ON after checking these points it is probably a malfunction Please contact your nearest YOKOGAWA dealer as listed on the back cover of ...

Page 55: ...ue Maximum input voltage For input impedance of 50 Ω 5 Vrms For input impedance of 1 MΩ 40 V DC ACpeak for DC input frequency 100 kHz 3 5 f 5 V DC ACpeak for 100 kHz input frequency 200 MHz where f is the frequency in MHz Ground Connect to the case ground Typical values represent typical or average values It is not strictly warranted CAUTION Do not apply a voltage exceeding the maximum input volta...

Page 56: ...the TA720 to supply power to the FET probe FET probe 700939 Power supply cable PROBE POWER Probe power supply terminals 2 terminals CAUTION Do not use the probe power supply terminal 2 terminals on the rear panel of the TA720 for purposes other than supplying power to YOKOGAWA s FET probe 700939 Otherwise damage to the TA720 or connected instrument may result 3 5 Connecting Cables and Probes ...

Page 57: ...ion Do not apply external voltage to the CAL signal output terminal of the DL1700 Series Digital Oscilloscope or the monitor output terminal of the TA720 This may cause damage to the internal circuitry Check that the TA720 and the DL1700 Series Digital Oscilloscope are turned OFF and connect them as shown in the figure 1 Connect the monitor output terminals on the rear panel of the TA720 CH A and ...

Page 58: ... range the gain across different frequencies will not be uniform Consequently a correct waveform cannot be input to the measurement circuit of the TA720 However the input capacity of each probe is not necessarily all the same Therefore the probe has a variable capacitor trimmer that allows the input capacity to be adjusted This adjustment is called phase correction When using the probe for the fir...

Page 59: ...oft key to confirm the date time Date Time display Pressing the setup parameter soft key highlights the rotary knob icon Confirm the date time Explanation Setting the Date Time Year Selectable range 2002 to 2079 Month Selectable range 1 to 12 Day Selectable range 1 to 31 Hour Selectable range 0 to 23 Minute Selectable range 0 to 59 Seconds are also displayed on the screen but you cannot set them S...

Page 60: ... section 6 1 On the GateMode menu that appears by pressing the SAMPLE key select event or time Selecting external gate is also possible Set the input coupling input impedance and trigger level See section 6 6 On the menu that appears by pressing the INPUT key set the input coupling input impedance and trigger Start Stop measurements See section 4 2 To perform a measurement once press the SINGLE ke...

Page 61: ...esults is updated When block sampling is ON Repeats the measurement of the specified block size Each time the measurement of all blocks is complete the display of the measured results is updated Note Measurement cannot be started when the storage medium is being accessed For the setup procedure of the gate see section 6 1 For the setup procedure of turning ON OFF block sampling and the block size ...

Page 62: ...SELSCT sec V MHz ENTER 0 1 2 3 m 4 5 6 7 8 9 n Rotary knob Numeric keys In a pop up window as shown in the following figure select the entry box using the rotary knob when selected the entry box item name changes to a dark blue color and set the value according to the following procedure When selecting the value Select the value Window or Marker using the SELECT key When setting the value Press th...

Page 63: ...at is above and to the right of the rotary knob when the entry box of a file name or comment is selected displays a keyboard on the screen as shown in the following figure Character string entry box INSERT indicator Procedure for Setting Character Strings 1 Turn the rotary knob to highlight the character you wish to enter If a character string is already entered such as a file name use the arrow k...

Page 64: ...meter the value will be truncated If you attempt to enter a value exceeding the maximum value of a parameter it will be set to the maximum value If you attempt to enter a value smaller than the minimum value of a parameter it will be set to the minimum value When Using the Keyboard The keyboard can be used along with the numeric keys The numeric keys that can be used along with the keyboard are as...

Page 65: ...ires the measured values and elapsed measurement time time stamp to the memory HardHist Hardware Histogram Acquires the measured values and the frequency of occurrence of those values to the memory ISI Inter symbol interference Select this mode when performing inter symbol interference analysis As with the time stamp mode the time stamps and measured values are acquired in the memory Note Changing...

Page 66: ... edge to the next falling edge of the input signal Measurement Range of the Period Varies depending on the sampling mode When in time stamp mode 6 ns to 20 ms When in hardware histogram mode 6 ns to 3 2 µs Continuous Measurement Conditions When the measurement edge interval is greater than or equal to 12 5 ns measurements are made continuously When measuring period 12 5 ns or more Continuous measu...

Page 67: ... CH B alternately A B Measures from the rising edge of CH A to the next falling edge of CH B A B Measures from the falling edge of CH A to the next falling edge of CH B A B Measures from the rising edge of CH A to the next falling edge of CH B and from the falling edge of CH A to the next rising falling of CH B alternately Measurement Range of A to B Time Interval Varies depending on the sampling ...

Page 68: ...isplayed separately for the measured values of A B or A B and A B Changing the measurement function clears the data that has been acquired to the memory up to that point Since A to B time interval measurement is not possible when the sampling mode is set to inter symbol interference analysis mode ISI TI does not appear as a possible selection in the Function selection menu 5 3 Setting the A to B T...

Page 69: ...n Selecting the Measurement Channel Select CH A or CH B Selecting the Polarity Select from the following Measures the positive side from the rising edge to the next falling edge Measures the negative side from the falling edge to the next rising edge Measures the positive side and negative side alternately Measurement Range of Pulse Width Varies depending on the sampling mode When in time stamp mo...

Page 70: ...set to histograms and statistical values can be displayed separately for the measured values of or and Changing the measurement function clears the data that has been acquired to the memory up to that point 5 4 Setting the Pulse Width Measurement ...

Page 71: ...to the next falling edge of the CH A input signal and from the falling edge to the next falling edge of the CH B input signal Measurement Range of the Period Varies depending on the sampling mode When in time stamp mode 6 ns to 20 ms When in hardware histogram mode 6 ns to 3 2 µs Continuous Measurement Conditions When the measurement edge interval is greater than or equal to 20 ns on each channel ...

Page 72: ...imultaneously measures from the rising edge to the next rising edge of the CH A input signal and from the rising edge of the CH A input signal to the first rising edge of the CH B input signal A A B Simultaneously measures from the falling edge to the next falling edge of the CH A input signal and from the falling edge of the CH A input signal to the first rising edge of the CH B input signal Meas...

Page 73: ... more Measured When set to A A B 20 ns or more 13 ns or less 13 ns or more 13 ns or more Measured Measured Measured Measured Measured Measured Measured Measured Measured Measured Measured Measured When A to B time interval measurement is not continuous Note Changing the measurement function clears the data that has been acquired to the memory up to that point Since period A A to B time interval me...

Page 74: ...t signal At the same time measures from the rising edge or falling edge of the CH A input signal to the first rising edge of the CH B input signal A A B Measures from the rising edge to the next rising edge and from the falling edge to the next falling edge of the CH A input signal At the same time measures from the rising edge or falling edge of the CH A input signal to the first falling edge of ...

Page 75: ...en in inter symbol interference analysis mode Pulse width A measurement 10 ns to 3 2 µs A to B time interval measurement 0 ns to 3 2 µs Continuous Measurement Conditions When the measurement edge interval of the CH A input signal is 20 ns or more and the measurement edge of CH B to the measurement edge of the CH A is 13 ns or more measurements are made continuously CH A CH B CH A CH B CH A CH B 20...

Page 76: ...e rising edge to the next rising edge and from the falling edge to the next falling edge of the CH B input signal Measurement Range of Pulse Width Varies depending on the sampling mode When in time stamp mode 6 ns to 20 ms When in hardware histogram mode 6 ns to 3 2 µs When in inter symbol interference analysis mode 10 ns to 3 2 µs Continuous Measurement Conditions When the measurement edge interv...

Page 77: ...event gate is selected 4 Set the number of events Event Size using the rotary knob or numeric keys When time gate is selected 4 Use the rotary knob or numeric keys to enter the gate time When external gate is selected Selecting the Input Signal Polarity 4 Press the Polarity soft key to select the input signal polarity Selecting the Gate Level 5 Press the INPUT key to display the Input menu 6 Press...

Page 78: ...vent size is reached The measurement of a single block is terminated when the event size of a single block reaches the maximum event size of the sampling mode before the specified gate time elapses The measurement of a single block is terminated when the maximum sampling size of the sampling mode is reached or when the maximum sampling time elapses even if the external gate remains open for an ext...

Page 79: ...6 3 IM 704510 01E Setting Measurement Conditions 3 2 1 4 5 6 7 8 9 10 11 12 13 14 15 5 V 500 kΩ 500 kΩ 200 pF 5 V Buffer amplifier External gate signal input circuit 6 1 Setting the Gate ...

Page 80: ...l Set the sampling interval in the following range 0 µs to 1 s resolution 1 µs When 0 µs is selected sampling is performed at the following interval Single measurement function 12 5 ns Note The sampling interval is fixed to 0 µs when in hardware histogram mode and inter symbol interference analysis mode The time resolution of the time stamp does not change even when the sampling interval is change...

Page 81: ...External Arming Ext Is Selected Selecting the Slope 4 Press the Slope soft key to select or Selecting the Arming Delay Type 5 Press the DelayMode soft key to display the DelayMode selection menu 6 Press the soft key corresponding to the desired arming delay type Setting the Delay Time When the arming delay type is set to Time 7 Set the delay time using the rotary knob or numeric keys Setting the E...

Page 82: ...TTL 10 0 14 V Maximum input voltage 40 V DC ACpeak Minimum input pulse width 30 ns Setup time 60 ns must precede the input signal by at least 60 ns for the arming to be valid Typical value represents a typical or average value It is not strictly warranted CAUTION Applying a voltage that exceeds the maximum input voltage indicated above to the external arming input terminal can damage the instrumen...

Page 83: ...Selectable range of event size 1 to 1000000 resolution 1 The arming delay can be set separately for each channel for the measurement functions of period A period B and pulse width A pulse width B pulse width A pulse width B Note The event that is delayed is the event size of the input signal of the measurement channel However for time interval measurement the event size of CH A input signal is use...

Page 84: ...g the Polarity Select from the following When set to OFF the inhibit input is invalid Inhibits measurements while a positive signal is being applied to the inhibit input terminal Inhibits measurements while a negative signal is being applied to the inhibit input terminal Note The time in which the inhibit input is valid is within the maximum sampling time from arming activation Input Method of the...

Page 85: ... 4 5 6 7 8 9 10 11 12 13 14 15 CAUTION Applying a voltage that exceeds the maximum input voltage indicated above to the inhibit input terminal can damage the instrument Inhibit signal input circuit 5 V 500 kΩ 500 kΩ 5 V Buffer amplifier 6 4 Setting Inhibit ...

Page 86: ...b or numeric keys Setting the Rest Time 5 Press the RestMode soft key to display the RestMode selection menu 6 Press the appropriate soft key to select the rest mode When Rest Mode Is Set to Time 7 Press the RestTime soft key 8 Set the rest time using the rotary knob or numeric keys When Rest Mode Is Set to Event 7 Press the RestEvent soft key 8 Set the event size to rest using the rotary knob or ...

Page 87: ...rence analysis mode Setting the Rest Time Select from the following OFF No rest time RestTime Set the rest time in terms of time Selectable range 1 0 µs to 1 0000000 s 100 ns steps RestEvent Set the rest time in terms of the event size Selectable range 1 to 1000000 Note When the rest mode is set to event or time external arming EXT cannot be used When the rest time is set in terms of the event siz...

Page 88: ...er soft key to display the Trigger menu 7 Press the soft key corresponding to the desired trigger mode Setting the Trigger Level 8 Press the Level soft key and then set the trigger level using the rotary knob or numeric keys Explanation Selecting the Source Channel Select the channel CH A or CH B for setting the input conditions Selecting the Input Impedance Select 50 Ω or 1 MΩ Note The input impe...

Page 89: ...l for all following blocks is set to this level RepeatAuto Taking the maximum and minimum values of the input signal during the first measurement block to be 100 and 0 respectively the trigger level is set to the specified percentage level Unlike the single auto trigger the trigger level is reset for each measurement block Setting the Trigger Level The selectable range varies depending on the trig...

Page 90: ...rs only for the measurement functions of A to B time interval period A A to B time interval and pulse width A A to B time interval pulse width A A to B time interval 5 Set the phase time using the rotary knob or numeric keys Explanation Selectable Range of Phase Time Shift the phase of the CH B input signal in the following range 0 to 10 0 ns resolution is 0 1 ns Note The phase of the CH B input s...

Page 91: ...nt Uses the internal reference clock signal for operation Ext Uses the external reference clock signal for operation Input Method of the External Reference Clock Signal Apply a reference clock signal to the reference input terminal marked REF IN on the rear panel according to the following specifications Input frequency range 10 MHz 10 Hz Input impedance 1 kΩ or more Input coupling AC Input level ...

Page 92: ...alue other than All 5 Press the Graph Size soft key to set the display size of the histogram to Half or Full 6 Press the Statistics Panorama Both Graph and Overlap soft key to set each item ON or OFF Both Graph and Overlap may not appear depending on the measurement conditions For the conditions in which they are displayed read the explanation below When using multi window or auto window and Windo...

Page 93: ...ze vertically Zoom box indicating the display range on the main window Panorama window Main window Both Graph Turns ON OFF the measured results of both polarities of pulse width A to B time interval pulse width A A to B time interval or pulse width A pulse width B measurement The ON OFF setting is valid only in the following cases A to B time interval measurement with the slope set to A B or A B t...

Page 94: ...gram of all windows are displayed at the top section of the screen and the list of statistical values at the bottom section In this setting the graph of deviation or the graph of σ can be displayed in place of the list of statistical values For Deviation For σ Use of Color on Histogram Displays As shown in the table below the color used to display the results vary depending on the measurement func...

Page 95: ...um or Meas2 Num soft key 6 Specify the data number you wish to display using the rotary knob or numeric keys Jumping to the Top Bottom or Center Position 4 Press the Jump soft key to display the Jump menu 5 Press the soft key corresponding to the desired position Center appears only when in hardware histogram mode When the Top soft key is pressed the first line of the list shows the measured data ...

Page 96: ...ode Displays the data number time stamp and measured value in the list When using the dual measurement function two columns are used When using the single measurement function the left side of the screen shows the list and the right side shows the time variation vertically The broken line and mark on the time variation window indicates the data that is highlighted in the list Display example when ...

Page 97: ...ted in the list Display example when using the single measurement function Display example when using the dual measurement function When in inter symbol interference analysis mode Displays the data number time stamp nT and measured value in the list When using the dual measurement function two columns are used When using the single measurement function the left side of the screen shows the list an...

Page 98: ...both measurement functions can be changed by changing the data number of either measurement function using the rotary knob keeping the difference between the data numbers constant Jumping to the Specified Position It is possible to move to the first line of the list Top the last line of the list Bottom and the line corresponding to the center position in the histogram display Center Specifying the...

Page 99: ...verlap soft key to set each item ON or OFF Overlap appears only when using the dual measurement function 7 Press the Wave soft key to select M1 M2 or M1 M2 Wave appears only when using the dual measurement function Select M1 when displaying only the Meas1 waveforms M2 when displaying only the Meas2 waveforms or M1 M2 to display both waveforms Settings Related to the Display Style of the Time Varia...

Page 100: ...ama display When turned ON a panorama window is displayed above the time variation main window Zoom box indicating the display range on the main window Panorama window Main window Settings Related to the Display Format of the Time Variation Waveforms Graph Parameter The following items can be specified Grid Turns ON OFF the grid Connect Sets whether to linearly interpolate between data points Dot ...

Page 101: ...All Is Selected 5 Press the soft key and then change the statistical parameters to be displayed using the rotary knob Since the statistical values of all windows cannot be displayed when the measurement function is set to pulse width A pulse width B PW PW used to select the displayed window is also displayed as shown below In this case press the soft key to select or and then turn the rotary knob ...

Page 102: ...tion Item Stat Item When in time stamp mode select the statistical calculation item from the following The statistical calculation items when in hardware histogram mode are the measured value and the frequency of occurrence Hist Sets the area of the statistical calculation items using the measured value and frequency see section 9 1 T V Sets the area of the statistical calculation items using the ...

Page 103: ...ulse width A polarity positive display style All Hardware histogram mode measurement function pulse width A polarity positive display style Window Time stamp mode measurement function pulse width A statistical calculation item Hist display style All 7 4 Setting the Statistics Display ...

Page 104: ...s displayed separately as shown below When the Statistical Calculation Item Is Set to T V Time Stamp and Measured Value When the data is block sampled the statistical calculation area is set to Block and the statistical calculation item is set to time variation T V the display style of the statistical calculation can be selected from the following All Lists the statistical values of all blocks The...

Page 105: ...lation item T V display style Block Note For the procedure of setting the statistical calculation parameters see section 9 1 Setting the Range and Parameters of Statistical Calculation If the statistical calculation parameter is displayed but the parameter is not been calculated is displayed If the measured data is invalid or the measured data does not exist is displayed 7 4 Setting the Statistics...

Page 106: ...ess the SELECT key to show the value entry area 6 Enter the desired constant using the numeric keys Setting Constant T by Frequency 5 Turn the rotary knob to select Frequency and then press the SELECT key to show the value entry area 6 Enter the desired frequency using the numeric keys Copying Settings 7 Turn the rotary knob to select Copy to Meas2 or Copy to Meas1 and then press the SELECT key If...

Page 107: ...he numeric keys Selecting the Setup Item only for dual measurement function 6 Turn the rotary knob to select Item and then press the SELECT key to select Meas1 or Meas2 Setting Constant T Setting Constant T Directly 7 Turn the rotary knob to select T Value and then press the SELECT key to show the value entry area 8 Enter the desired constant using the numeric keys After entering the value press t...

Page 108: ...parameters Label Center Left Marker or Right Marker for the target window Then enter the value using the numeric keys 13 Turn the rotary knob to select Span and then press the SELECT key to show the span selection window 14 Turn the rotary knob to select the span Copying Settings 15 Turn the rotary knob to select Copy to Meas2 or Copy to Meas1 and then press the SELECT key If you selected Meas1 in...

Page 109: ...onstant T can also be set using the frequency which is an inverse of constant T rounded to a resolution of 25 ps Selectable range of constant T 1 ns to 250 ns 25 ps steps Selectable range when setting constant T using the frequency 4 MHz to 1000 MHz Setting the Window Offset Set the window offset Selectable range 100 ns to 300 ns Update to Window The constant T value is applied to the center span ...

Page 110: ...Be Displayed WindowNum Select the window to be displayed from below Label T Window set using the Window Parameter Setting dialog box All Shows the histogram of all windows and a list the statistical values for each window Summation Sums the histogram of all windows and displays the result When window is set to All display Displays the top three parameters whose statistical calculation has been tur...

Page 111: ... the SELECT key to select EFM EFM or 1 7 Selecting the Constant T Type 5 Turn the rotary knob to select T Type and then press the SELECT key to select Measured T or Estimated T Selecting the Setup Item only for dual measurement function 6 Turn the rotary knob to select Item and then press the SELECT key to select Meas1 or Meas2 Turning ON OFF 2T 1T 7 Turn the rotary knob to select Window1 2T or Wi...

Page 112: ...12 Turn the rotary knob to select the window to be displayed Explanation Window Mode Auto In this mode the constant T value is automatically determined according to the input data and the window size is automatically set This mode is used when multiple histograms are present simultaneously and the constant T value is not fixed CD in CAV format or when the constant T value cannot be determined Sele...

Page 113: ...mined for CH A and the value is also used for CH B Note If constant T is set to Measured T in period or pulse width measurement set the measurement channel to CH A Setting the X Axis of the Window The values of the following parameters are automatically set from the modulation type and the constant T value Period measurement pulse width measurement period A period B measurement and Meas1 of period...

Page 114: ...he Window to Be Displayed Select the window to be displayed from below Label T Window set using the Window Parameter Setting dialog box All Shows the histogram of all windows and a list the statistical values for each window Summation Sums the histogram of all windows and displays the result Note When making time interval measurements only T 2 can be selected for WindowNum All and Summation cannot...

Page 115: ...ey to display the Scale menu Selecting the Scaling Item only for dual measurement function 2 Press the Link soft key to display the Link menu 3 Press the Meas1 Meas2 or Link soft key to select the item to be scaled Setting the X Axis Center 4 Press the X Center soft key and then set the center value using the rotary knob or numeric keys Selecting the X Axis Span 5 Press the X Span soft key and the...

Page 116: ... X axis center 50 ns to 20 000000000 µs 25 ps steps X axis span selection Select from 1 5 3 7 5 15 30 60 150 300 600 ns 1 5 3 7 5 15 30 60 150 300 600 µs 1 5 3 7 5 15 and 30 ms Y axis maximum selection 10 20 40 100 200 400 1000 2000 4000 10000 20000 40000 100000 200000 400000 1e6 1e7 1e8 1e9 Lin 1e1 1e2 1e3 1e4 1e5 1e6 1e7 1e8 1e9 Log Y axis scale type selection Select from Lin linear or Log logar...

Page 117: ...arker speed select to increase the speed select Moving the X1 or X2 Marker Individually 6 Press the X Marker soft key to select X1 or X2 7 Turn the rotary knob to select the marker The measured value and frequency at the marker position are shown below the main window Moving the X1 and X2 Markers Simultaneously 6 Press the X1 X2 soft key 7 Turn the rotary knob to move the X1 and X2 markers simulta...

Page 118: ...he Movement Speed of Markers Moves 1 dot at a time in the window Moves 5 dots at a time in the window Selectable Range of the Y Marker for Histogram Display 0 to 1000000000 1e9 Movement Range of the Y1 Marker for time variation display Below the Y2 marker within the window including the position of the Y2 marker Movement Range of the Y2 Marker for time variation display Above the Y1 marker within ...

Page 119: ...ft key to display the Sync Pattern menu 8 Press one of the Symbol 1 to Symbol 4 soft keys and turn the rotary knob to select the symbol you wish to search Setting the Link only for dual measurement function 9 Press the Link soft key to select M1 M2 or Link Executing the Search 10 To search forward press the Next soft key To search backward press the Previous soft key When the Next soft key is pres...

Page 120: ... A A to B time interval or pulse width A pulse width B select whether to search one of the measurement functions or both measurement functions simultaneously M1 When you wish to search only the data in the left list M2 When you wish to search only the data in the right list Link When you wish to search data in both lists left and right simultaneously Note When the measurement function is set to pe...

Page 121: ... to display the Display menu For Histogram Display and Statistics Display 2 Press the Calc Stat soft key to display the Calculation Statistics dialog box When Using the Multi Window or Auto Window 3 Turn the rotary knob to select the parameter you wish to calculate and then press the SELECT key If you press the SELECT key on a parameter that is already selected it is deselected the parameter will ...

Page 122: ...ar and pressing the SELECT key sets all parameters to not be calculated Selecting the Calculation Polarity Only when polarity can be selected See the explanation 7 Press the ESC key to close the Calculation Statistics Setting dialog box 8 Press the CalcSlope or Calc Pol soft key to display the Calculation Slope or Calculation Polarity menu 9 Press the soft key corresponding to the polarity you wis...

Page 123: ...ion period A to B time interval or pulse width measurement on the time variation display Window Entire displayed window Marker Area enclosed by X1 X2 Y1 and Y2 markers Block Specified block when performing block sampling all the data when block sampling is OFF Note The window for the histogram display is determined by the scale of the measured axis X axis The window for the time variation display ...

Page 124: ... from the rising edge of CH A to the first falling edge of CH B and from the falling edge of CH A to the first falling edge of CH B Pulse width measurement with the polarity set to Calculates the statistics only on the positive side Calculates the statistics only on the negative side Calculates the statistics on the sum of the positive and negative polarities Calculates the statistics on the posit...

Page 125: ...lect PW TI indicates pulse width A A to B time interval measurement PW PW indicates pulse width A pulse width B measurement If you select PW TI press the Slope soft key to select the polarity slope see section 5 7 for details Selecting the Histogram Display 6 Press the DISPLAY key to display the Display menu 7 Press the Item soft key to display the Display Item menu 8 Press the Histogram soft key ...

Page 126: ...ress the Mode soft key to display the Mode selection menu 16 Press one of the soft keys Single Combination or Between Setting the Polarity of Mark Space 17 Press the Polarity soft key to select whether spaces will be positive or marks will be positive When the extraction mode is set to Single Selecting the trigger 18 Press the Trigger soft key to select or Selecting the Window to Be Used as a Trig...

Page 127: ...acted 20 Press the Target soft key to display the Target selection menu 21 Select Prev or Next When the extraction mode is set to Between Selecting the trigger 18 Press the Trigger soft key to select or 19 Press the or soft key and then turn the rotary knob to select the window to be used as a trigger Pulse width A A to B time interval measurement 14 Continuing from step 11 above press the ISI Set...

Page 128: ...ted only when Target has selections 20 Press the Target soft key to display the Target selection menu 21 Select Prev or Next When the extraction mode is set to Combination Selecting the trigger 18 Press the Trigger soft key to select or Selecting the Window to Be Used as a Trigger 19 Press the or soft key and then turn the rotary knob to select the window to be used as a trigger Selecting the data...

Page 129: ...e followed by a mark or a mark followed by a space as a trigger and analyzes the data around it Between Uses a mark or a space existing between two spaces or two marks as a trigger and analyzes the data between them Selecting the Polarity of Mark Space Select whether spaces will be positive or marks will be positive Selecting the Trigger Selecting the Data to Be Extracted You can select which mark...

Page 130: ... B Next A B Extracts the front edge or Prev A B Next A B back edge of the trigger Prev A B Next A B Prev A B Next A B Combination Prev A B Mid A B Extracts the front edge Next A B middle edge or back edge Prev A B Mid A B Next A B Prev A B Mid A B Next A B Prev A B Mid A B Next A B Slope A A B Mode Polality Trigger Target Explanation Single Prev A B Extracts the front edge or Next A B back edge of...

Page 131: ...id A B back edge of the Next A B trigger Prev A B Mid A B Next A B Prev A B Mid A B Next A B Use of Color in Histogram Displays Histogram of the extracted data Data for A A B or A A B Red Data for A A B or A A B Blue Histogram of all spaces or marks Data for A A B or A A B Pink Data for A A B or A A B Light blue Note In pulse width A pulse width B or pulse width A A to B time interval measurement ...

Page 132: ...e Mark Mark Mark Setting Mode ISI Function PulseWidth Slope Display Window Window setting suitable for the measured signal ISI Setting Mode Single Polarity Trigger 3T Target Prev Analyzes the applicable Mark data Histogram display of all Mark data Histogram display of extracted Mark data Set analyze the Mark data immediately before the Space 3T Statistical values of the extracted Mark data Statist...

Page 133: ...uitable for the measured signal ISI Setting Mode Combination Polarity Trigger 3T 7T Target Prev Sync OFF CH A measurement CH B measurement Trigger Analyzes the applicable Mark data Histogram display Displays all Mark data and extracted Mark data overlapped Set analyze the Mark data immediately before the Space 3T and Mark 7T sequence Statistical values of the extracted Mark data Statistical values...

Page 134: ...t to set the Sync Pattern Sync PatternSet the start pattern of ISI analysis Item Histogram to display the ISI analysis results Sync ON ISI Setting Mode Between Polarity Trigger 3T 3T Sync Pattern CH A measurement CH B measurement Trigger Trigger Analyzes the applicable Mark data Histogram display of all Mark data Histogram display of extracted Mark data Set analyze the Mark data between two Spaces...

Page 135: ...Polarity Trigger 3T Target Prev A B indicates the front edge of 3T Space A B CH A measurement CH B measurement Trigger Trigger Trigger Analyzes the applicable A B data Histogram display of all Mark data Histogram display of extracted Mark data Set analyze the A B data the front edge of Space 3T Mark 7T sequence Statistical values of the extracted Mark data Statistical values of all Mark data Note ...

Page 136: ...xT specify all Marks greater than 4T Target Mid A B A B CH A measurement CH B measurement Trigger Analyzes the applicable A B data Histogram display of all Mark data Histogram display of extracted Mark data Set analyze A B data of Space 4T Max and Mark 4T Max Statistical values of the extracted Mark data Statistical values of all Mark data Note Due to the limitation of the continuous measurement c...

Page 137: ...t memory number is specified as in MEM05 For the procedure to set the character string see section 4 4 Executing the Store Operation 5 Press the Store soft key to execute the store operation Explanation Settings That Are Stored Measurement conditions and display parameters that are set using the following keys are stored MODE key FUNCTION key SAMPLE key INPUT key DISPLAY key SCALE key and MARKER k...

Page 138: ... the Memory Number 3 Turn the rotary knob to select the memory number containing the setup parameters you wish to recall Executing the Recall Operation 4 Press the Recall soft key to recall the setup parameters Explanation Recalled Parameters When setup parameters are recalled the TA720 setup is changed to the stored setup parameters Selecting the Memory Number Select from the following 32 memory ...

Page 139: ...ing is also possible on the TA720 2HD Formatted to 1 44 MB using MS DOS 2DD Formatted to 720 KB using MS DOS Inserting the Floppy Disk into the Floppy Disk Drive With the label facing left insert the disk into the floppy disk drive Insert the disk until the eject button pops out Removing the Disk from the Floppy Disk Drive Check that the access indicator is not illuminated and press the eject butt...

Page 140: ... PC types Installing the PC Card The PC card slot is located on the rear panel of the TA720 With the label of the PC card facing up insert the card securely into the PC card drive An electric sound is heard when the PC card is recognized Ejecting the PC card Check that the PC card is not being accessed and eject the PC card To eject the PC card press the eject button once to force the button to po...

Page 141: ...soft key 3 Press the Function soft key to display the Function menu 4 Press the Format soft key The File List dialog box appears 5 On the File List dialog box turn the rotary knob to select the storage medium to be formatted Select FD0 for a floppy disk CA0 for a PC card Press the Media Info soft key to list information such as the total size of the storage medium 6 Press the SELECT key to display...

Page 142: ...ELECT key 8 Turn the rotary knob to select OK and then press the SELECT key Formatting is executed PC card 7 Turn the rotary knob to set the number of partitions 8 Press the Exec soft key An Alert dialog box opens for you to confirm the format operation To cancel the format operation select Cancel and press the SELECT key 9 Turn the rotary knob to select OK and then press the SELECT key Formatting...

Page 143: ...mber of partitions Note If you format a storage medium that has data stored on it all the data are cleared when the storage medium is formatted Use caution when formatting a storage medium Floppy disks that are formatted to formats other than those listed above cannot be used If an error message is displayed after the format operation the floppy disk may be damaged Disks that are formatted using M...

Page 144: ...ist soft key to display the File List 6 Turn the rotary knob to select the save destination storage medium indicated with and press the SELECT key 7 Likewise select the directory indicated with Path shows the selected storage medium directory To show only the files with the SET extension on the file name list press the Filter soft key to select SET To show all the files select Press the Property s...

Page 145: ...in Path While the data is being saved the soft key name changes to Abort Press the Abort soft key before the save operation completes to abort the save operation Recalling the Setup Parameters 4 After step 3 press the Load soft key to display the File List 5 Turn the rotary knob to select the storage medium indicated with to be recalled and press the SELECT key 6 Likewise select the directory indi...

Page 146: ... to 25 characters A file name must be assigned Comments are optional You cannot save to a file name that already exists in the same directory overwriting not allowed The file name is common with other saved data except the extension When saving setup parameters set extension is automatically attached Auto Naming Function When Auto Naming is turned ON files with a three digit number from 000 to 499...

Page 147: ...ey to select Ascii or Bin 5 Press the Save soft key to display the Save menu Setting the Save Destination Directory 6 Press the File List soft key to display File List 7 Turn the rotary knob to select the save destination storage medium indicated with and press the SELECT key 8 Likewise select the directory indicated with Path shows the selected storage medium directory To show only the files with...

Page 148: ...esults are saved to the directory shown in Path While the data is being saved the soft key name changes to Abort Press the Abort soft key before the save operation completes to abort the save operation Recalling the Measured Results 4 After step 3 press the Data Type soft key to select Bin 5 Press the Load soft key to display the File List 6 Turn the rotary knob to select the storage medium indica...

Page 149: ...rtitions is 1 CA0 1 PC card when the number of partitions is 2 or more ND0 Network drive Data Type and Extension The measured results can be saved to either of the data types below Bin The measured results are saved as binary data The saved data can be recalled on the TA720 A measurement data file with wvf extension and a header file with hdr extension are saved The header file is a file containin...

Page 150: ...e analysis mode Single measurement function Approx 8 the number of samples approx 24 KB Dual measurement function Approx 16 the number of samples approx 24 KB Ascii format The data size varies greatly depending on the sampling mode measurement function sample size histogram display and other settings The maximum size is approximately 33 M for time stamp mode single measurement function and sample ...

Page 151: ...red results are recalled the TA720 settings are changed to the those that correspond with the recalled measured results When renaming a file see section 11 9 you can specify the name using up to 25 characters However if the number of characters excluding the extension exceeds 8 only the first 7 characters and the extension are displayed as in TA72000 SET Characters exceeding 7 characters are indic...

Page 152: ...T V 5 Press the Save soft key to display the Save menu Setting the Save Destination Directory 6 Press the File List soft key to display File List 7 Turn the rotary knob to select the save destination storage medium indicated with and press the SELECT key 8 Likewise select the directory indicated with Path shows the selected storage medium directory To show only the files with the CSV extension on ...

Page 153: ...g see section 4 4 13 As necessary select Comment and enter the comment string in a similar fashion Executing the Save Operation 14 Press the Save Exec key When the Save Exec key is pressed the statistical calculation results are saved to the directory shown in Path While the data is being saved the soft key name changes to Abort Press the Abort soft key before the save operation completes to abort...

Page 154: ...nter a comment using up to 25 characters A file name must be assigned Comments are optional You cannot save to a file name that already exists in the same directory overwriting not allowed The file name is common with other saved data except the extension Auto Naming Function When Auto Naming is turned ON files with a three digit number from 000 to 499 are automatically created when saving the dat...

Page 155: ...te soft key to display the File List and Delete menus To limit the type of files to be displayed press the Filter soft key to select XXX The XXX section of XXX varies depending on the File Item setting in the File menu as follows Setup SET Measure WVF when Data Type is Bin or CSV when Data Type is Ascii or Statistics CSV Setting the Directory Containing the File or Directory to Be Deleted 5 Turn t...

Page 156: ...h to view the file attribute before deleting the file press the Property soft key Executing the Delete Operation 8 Press the Del Exec soft key All files with asterisks are deleted Note When Filter is set to WVF and you delete measured result data files files with wvf extension the corresponding header files files with hdr extension are also deleted CAUTION Do not remove the storage medium or turn ...

Page 157: ...or Directories to Be Deleted Press the Set Reset or All Set soft key to place asterisks to the left of the file names and directory names shown in the file list Files with asterisks will be deleted Properties Lists the file size saved date time attribute and comment of the selected file Note Files cannot be deleted while measurement is in progress while the START STOP indicator is illuminated Data...

Page 158: ...he type of files to be displayed press the Filter soft key to select XXX The XXX section of XXX varies depending on the File Item setting in the File menu as follows Setup SET Measure WVF when Data Type is Bin or CSV when Data Type is Ascii or Statistics CSV Setting the Directory Containing the Copy Source Files 5 Turn the rotary knob to select the storage medium indicated with and press the SELEC...

Page 159: ...All files with asterisks are copied CAUTION Do not remove the storage medium or turn OFF the power while files are being copied while is blinking Such acts can damage the storage medium or destroy the data on the storage medium Explanation Specifying the Files to Be Listed Filter The type of files to be listed can be specified XXX Displays only the files with the type of data Setup Measure or Stat...

Page 160: ...ress the Filter soft key to select XXX The XXX section of XXX varies depending on the File Item setting in the File menu as follows Setup SET Measure WVF when Data Type is Bin or CSV when Data Type is Ascii or Statistics CSV Setting the Directory Containing the File or Directory to Be Renamed 5 Turn the rotary knob to select the storage medium indicated with and press the SELECT key 6 Likewise sel...

Page 161: ...es and directories on the network drive optional function cannot be renamed In addition if the number of characters excluding the extension exceeds 8 characters on the file list displayed on the TA720 only the first 7 characters and extension are displayed as in TA72000 SET only the first 7 characters for directories Do not change the extension of files used on the TA720 If you do the files will n...

Page 162: ...f files to be displayed press the Filter soft key to select XXX The XXX section of XXX varies depending on the File Item setting in the File menu as follows Setup SET Measure WVF when Data Type is Bin or CSV when Data Type is Ascii or Statistics CSV Setting the Parent Directory in Which the New Directory Will Be Created 5 Turn the rotary knob to select the storage medium indicated with and press t...

Page 163: ...ter the directory name using up to 8 characters A directory created on a network drive cannot be renamed from the TA720 Deleting the directory is possible When renaming a directory on a floppy disk or PC card see section 11 9 up to 25 characters can be used However if the number of characters exceed 7 characters the characters exceeding 7 characters are displayed as as in TA72000 The file name can...

Page 164: ...it quickly If the paper is left in contact with plastic film such as a vinyl chloride film or Scotch tape containing plasticizers for an extended time the paper will lose some of its ability to reproduce color If you are going to store the paper in a folder for example use a folder made of polypropylene When using glue on the paper do not use glue containing organic solvents such as alcohol or eth...

Page 165: ...MAN FEED position Hold the roll paper so that the inner side of the roll paper the side that is not glossy is showing on top and set the core to the right holder while pressing the movable holder on the left side of the roll paper storage place to the left Then release the movable holder MAN FEED Release arm Turn the paper feed knob Roll paper Guide Roller Insert the edge of the roll paper evenly ...

Page 166: ... back to its original position and close the cover Make sure that the edge of the roll paper is showing from the opening of the printer cover Push the printer cover down firmly until it clicks into place Note After installing the roll paper make sure that the paper is feeding properly according to the steps given on the next page If the paper is not being fed evenly continue to feed the paper for ...

Page 167: ... wish to print 8 Press the START STOP key to stop the data acquisition The waveform acquisition is in progress when the indicator above START STOP is illuminated 9 Press the COPY key The screen image is printed on the built in printer To abort the printing of the screen image press the Abort soft key on the Copy menu Explanation Setting a Comment Since the comment up to 25 characters is displayed ...

Page 168: ...on Directory 4 Press the File List soft key to display File List 5 Turn the rotary knob to select the save destination storage medium indicated with and press the SELECT key 6 Likewise select the directory indicated with Path shows the selected storage medium directory Setting the File Name 7 Press the File Name soft key to display the File Name dialog box 8 Turn the rotary knob to select AutoNami...

Page 169: ... the half Tone when the data format is TIFF or BMP 13 Press the Half Tone soft key 14 Press the ON Gray ON Color ON ColorR or OFF soft key Compressing the Data only when the data format is BMP 15 Press the Compression soft key to select ON Executing the Save Operation 16 Display the screen you wish to save 17 Press the COPY key To abort the save operation press SHIFT COPY COPY MENU to display the ...

Page 170: ...the screen and can be saved as a screen image You cannot save to a file name that already exists in the same directory overwriting not allowed The file name is common with other saved data except the extension Compressing the Data only when the data format is BMP For BMP format data can be compressed using RLE and saved However data in BMP format cannot be compressed if half one is OFF Auto Naming...

Page 171: ...type is different use an adapter or other similar devices PC Hub or router that supports 10BASE T 10BASE T straight cable Ethernet interface connector One to One Connection with a PC Connect the TA720 via a network switch such as a hub as shown below PC Hub or router that supports 10BASE T 10BASE T straight cable Ethernet interface connector Note When connecting the TA720 and a PC in a one to one ...

Page 172: ...ress subnet mask and default gateway are automatically configured Setting the IP Address If DHCP was set to Off in step 4 set the IP address 5 Turn the rotary knob to the desired digit of IP Address and press the SELECT key to display the value entry area 6 Use the rotary knob to set the IP address Setting the Subnet Mask If DHCP was set to Off in step 4 set the subnet mask 7 Turn the rotary knob ...

Page 173: ...g the keyboard 23 Likewise set the secondary domain suffix in Domain Suffix2 Turning ON OFF the Power 24 To apply the new settings the TA720 must be power cycled After all the settings are complete turn the power to the TA720 OFF then back ON again Explanation To use the Ethernet communication functions of the TA720 the following settings are required Setting the IP Address Subnet Mask Default Gat...

Page 174: ...he TA720 the host name of the destination can be specified using a name instead of an IP address when using the network drive function or network printer function You set the domain name the DNS server address 0 0 0 0 by default and the domain suffix In networks that support DHCP these settings can be configured automatically DNS Server Up to two DNS server addresses can be specified primary and s...

Page 175: ...er string see section 4 4 8 Turn the rotary knob to move the cursor to Password and press the SELECT key to display the keyboard 9 Enter the password corresponding to the login name using the keyboard Password is not required if Login Name is anonymous 10 Turn the rotary knob to move the cursor to Timeout and press the SELECT key to set the timeout time 11 Turn the rotary knob to move the cursor t...

Page 176: ...using am and pm Servers that return characters other than ASCII characters in the list The following operations cannot be performed Turning file protect ON and OFF on saved files Formatting a network drive Copying between network drives Renaming a file on the network This function cannot be used when the FTP server function or file operation function is used To use this function configure the TCP ...

Page 177: ...d press the SELECT key to display the keyboard 7 Enter the password using the keyboard using up to 15 characters Enter the password again for confirmation If the user name is set to anonymous you do not have to enter the password 8 Turn the rotary knob to move the cursor to Time Out and press the SELECT key to display the value entry area 9 Use the rotary knob to enter the timeout time 10 Execute ...

Page 178: ...FTP client function or file operation function is used The root directory of the floppy disk is indicated as FD0 the root directory of the PC card drive is indicated as CA0 The log list is cleared when the power is turned OFF To use this function configure the TCP IP settings beforehand according to section 12 2 Setting the TCP IP To apply the new settings the TA720 must be power cycled 12 4 Acces...

Page 179: ...tion and MAC 000064_844_FA6 example is the MAC address Turning ON OFF the FTP Passive Mode 1 Press the UTILITY key to display the Utility menu 2 Press the Network soft key to display the Network menu 3 Press the Others soft key to display the Others menu 4 Use the SELECT key to select ON or OFF Explanation MAC Address The MAC address is a hardware address that is assigned to the TA720 for identifi...

Page 180: ...urning ON OFF the FTP Passive Mode Turn this function ON when using the TA720 behind a firewall that requires the passive mode The default setting is OFF 12 5 Checking the MAC address and Turning ON OFF the FTP Passive Mode ...

Page 181: ...n select Cancel and press the SELECT key Explanation Initial Settings When initialization is executed the settings are reset as follows Item Setting MODE key Hard Hist FUNCTION key Function Period Channel Slope A Period A A B Period TI A B TI A A B PW TI Pulse Width A B PW PW A B Per Per SAMPLE key Gate Mode Event Gate Event Num 100 Gate Time 1 µs External Gate Polarity Sample Interval 0 µs Arming...

Page 182: ...alc Stat Median Off Histogram Calc Stat Mode Off Histogram Window Size 14 Histogram Window Mode Single Histogram Window Meas Item Meas1 Histogram Window TValue 38 000 ns Histogram Window Offset 0 000 ns Histogram Window Frequency 26 315 MHz Histogram Window Modulation EFM Histogram Window Window1 2T OFF Histogram Window T Type Measured T Histogram Window Number 1T WINDOW1 Histogram ISI Setting Mod...

Page 183: ...nter TimeVariation 150 ns Scale Y Span TimeVariation 200 ns Marker Link Per Per Link Marker Link Per TI Meas1 Marker Link PW TI Meas1 Marker Link PW PW Link Marker X1 Histogram 0 Marker X2 Histogram 300 ns Marker Y1 Histogram 0 Marker Movement Marker X1 TimeVariation 0 0 µs Marker X2 TimeVariation 60 0 µs Marker Y1 TimeVariation 50 0 µs Marker Y2 TimeVariation 250 ns Items That Cannot Be Initializ...

Page 184: ...15 s Others FTP Passive OFF Copy related items Copy to Printer Image Copy Image Format TIFF Half Tone OFF black and white Compression OFF Calibration Calibration value calibrated under standard operating conditions Note When initialization is executed operations such as measurement and calculation are aborted To initialize all the settings reset to factory default settings turn ON the power while ...

Page 185: ...n coefficient of the time to voltage converter T V calibration Delay line that sets the phase between channels during A to B time interval measurement Phase calibration Measurement function Function calibration Executing Calibration Perform calibration when the operating environment temperature humidity etc of the TA720 changes drastically If the power is turned OFF the calibration data is reset t...

Page 186: ...re output from the 10MHz OUT terminal at all times Output frequency 10 MHz typical value Output impedance 50 Ω typical value Output coupling AC Output level 1 Vp p when the input impedance on the receiving side is 50 Ω Typical value represents a typical or average value It is not strictly warranted 50 Ω 470 pF 10 MHz output circuit CAUTION Do not apply external voltage to the 10MHz OUT terminal Do...

Page 187: ...ee 2 8 Connecting the Cable Connect a BNC cable to the GATE OUT terminal on the rear panel Explanation When the gate is open the TTL level signal from the GATE OUT terminal is set high CAUTION Do not apply external voltage to the GATE OUT terminal Doing so can cause damage to the TA720 50 Ω 5 V 5 V VHC Gate output circuit ...

Page 188: ...measurement or pulse width measurement Outputs only the signal applied to the selected channel Other measurements Outputs signals applied to both CH A and CH B The signal is output according to the following specifications Output impedance 50Ω typical value Output level Approx 1 4 the input signal within 5 V when the input impedance of the receiving monitor device is 50 Ω Typical value represents ...

Page 189: ...Information dialog box Turn the rotary knob to scroll the displayed contents Checking the ROM Version 3 Press the Version soft key to display the Version Information dialog box An example of Version Information is shown below Explanation Setup Conditions That Can Be Displayed Measurement conditions and display parameters that are set using the following keys can be displayed MODE key FUNCTION key ...

Page 190: ...D 2 Press the LCD soft key to display the LCD menu Setting auto off 3 Press the Auto Off soft key to select ON 4 Press the Time soft key to set the time until the backlight turns OFF Setting the backlight brightness 3 Press the Bright soft key and the turn the rotary knob to select the brightness Turning OFF the backlight 3 Press the LCD OFF soft key When the soft key is pressed the backlight turn...

Page 191: ...omatically turns OFF The time until the backlight turns OFF can be set in the range of 1 min to 60 min Backlight brightness The brightness can be set using 8 levels 0 to 7 The lifetime of the backlight can be prolonged by turning OFF the backlight when it is not necessary Backlight ON OFF LCD OFF Turns ON OFF the LCD backlight Note If a warning occurs the message is recorded in the error log even ...

Page 192: ... medium formatted The storage medium is not properly Insert the storage medium properly 11 1 11 2 inserted The storage medium is Remove the write protection write protected Insufficient free space on the storage Delete unneeded files or use another 11 7 medium storage medium Attempted to save while the Save after the measurement completes or 11 4 to 11 6 measurement is in progress stop the measure...

Page 193: ...ters Invalid characters are being used 4 4 611 Media full There is not enough free space on the medium Directory entry 612 Media full There is not enough free space on the medium 613 Directory is not empty Attempted to delete a directory that is not empty 11 19 614 File is protected Attempted to delete a write protected file 11 19 615 Physical format error Physical format error occurred 616 620 Fi...

Page 194: ...nfirm network This function is not supported settings and connections 757 FTP Error Mkdir Confirm network This function is not supported settings and connections 758 FTP Error Rmdir Confirm network This function is not supported settings and connections 759 FTP Error Get Confirm network This function is not supported settings and connections 760 FTP Error Put Confirm network This function is not s...

Page 195: ...umber of samples 51 Time stamp data overflowed The time stamp data has exceeded the maximum 15 1 sampling time 52 Measurement data overflowed Measured data exceeded the measurement range 15 2 to 15 4 53 Measured T failure Failed to measure auto window T 8 8 54 Estimated T failure Failed to estimate auto window T 8 8 55 Rest time is too short Rest time is too short 6 11 56 No reference clock No ref...

Page 196: ...ing menu The messages are cleared and the mark at the upper right corner of the screen is also cleared Explanation When an operation error a communication error or a warning occurs the TA720 creates an error message list and displays a mark at the upper right corner of the screen The details of the message can be viewed by displaying the error log Warning mark You must press the Clear soft key on ...

Page 197: ...ction menu Testing the Keys and Rotary Knob 4 Press the Panel soft key A menu used to start the test and a window that indicates the test results are displayed 5 Press the Exec soft key to execute the test 6 Press each key and check that the name of the key is displayed 7 Turn the rotary knob to the left and right and check that the name of the direction is displayed correctly 8 Press the ESC key ...

Page 198: ...he rotary knob to check that the brightness of the LCD changes 8 Press the ESC key to quit the test Testing the Board 4 Press the Board soft key A menu used to start the test and a window that indicates the results of the previous test are displayed 5 Press the Exec soft key to start the test The board test starts and the results are displayed PASS should appear on all items Explanation When a Fai...

Page 199: ...aler as listed on the back cover of this manual for repairs Low Battery The lithium battery has reached the end of its service life The battery must be replaced Calibration Data Lost The internal calibration value may have been lost Recalibration is required ROM Error DRAM Error Error may have occurred in the internal memory SRAM Error Note When executing a self test leave the input terminals CH A...

Page 200: ...nt Technologies Frequency counter Frequency resolution 1 Hz or better Recommended instrument TA1100 Time Interval Analyzer by YOKOGAWA The procedure for adjusting the time base reference clock using the recommended instruments is described below Connecting the Instruments Check that the power switch is turned OFF on all instruments before connecting the instruments Connect the output of the standa...

Page 201: ... ATT OFF 50 Ω trigger level 0 V REFERENCE EXTERNAL Rb atomic oscillator None Adjustment Procedure Adjust the TA720 after 30 minutes of warm up Turn the REFERENCE ADJUST on the rear panel of the TA720 and adjust it so that the read out value of the frequency counter is within the following range 9 999995 MHz to 10 000005 MHz 10 MHz 5 Hz within 0 5 ppm 14 5 Adjusting the Time Base ...

Page 202: ...ecting the instruments Connect the output of the DC voltage generator to the input terminal CH A CH B of the TA720 7651 PRO GRAMABLE DCSOUR CE TA720 OUTPUT CH A CH B DC voltage generator 7651 Instrument Settings TA720 Input settings DC coupling 1 MΩ trigger level 0 V 7651 Output level 4 000 V 0 V 4 000 V Test Method Calibrate the TA720 after 30 minutes of warm up This test compares the applied DC ...

Page 203: ...ts by setting the output of the DC voltage generator to 0 000 V and 4 000 V 10 Repeat steps 1 to 9 for CH B Test Result CH A Voltage of the 7651 VL VH VTRIG Allowable Range 4 000 V 3 950 V to 4 050 V 0 000 V 0 010 V to 0 010 V 4 000 V 4 050 V to 3 950 V CH B Voltage of the 7651 VL VH VTRIG Allowable Range 4 000 V 3 950 V to 4 050 V 0 000 V 0 010 V to 0 010 V 4 000 V 4 050 V to 3 950 V Note If nois...

Page 204: ...nstruments before connecting the instruments Connect the output of the synthesized signal generator to the input terminal CH A CH B of the TA720 TA720 8657 B 10MHz REF IN REFERENCE OUT OUTPUT CH B CH A Synthesized signal generator 8657B Instrument Settings TA720 Sampling mode Hardware histogram mode Input settings DC coupling 50 Ω both CH A and CH B trigger level 0 V Function Period A B Gate Event...

Page 205: ... less 166 6 MHz 5 7 ns to 6 3 ns 120 ps or less CH B Synthesized Signal Generator Frequency Average Standard Deviation Measured Value Allowable Range Measured value Allowable Range 10 MHz 99 7 ns to 100 3 ns 280 ps or less 166 6 MHz 5 7 ns to 6 3 ns 120 ps or less CH B Synthesized Signal Generator Frequency Average Standard Deviation Measured Value Allowable Range Measured value Allowable Range 10...

Page 206: ...output of the synthesized signal generator to the input terminal CH A CH B of the TA720 TA720 8657 B 10MHz REF IN REFERENCE OUT OUTPUT CH B CH A Synthesized signal generator 8657B Instrument Settings TA720 Sampling mode Hardware histogram mode Input settings DC coupling 50 Ω both CH A and CH B trigger level 0 V Function Period A B Gate Event 1000000 Reference External X Center X Span Input Frequen...

Page 207: ...value Allowable Range 10 MHz 99 7 ns to 100 3 ns 120 ps or less 166 6 MHz 5 7 ns to 6 3 ns 100 ps or less CH B Synthesized Signal Generator Frequency Average Standard Deviation Measured Value Allowable Range Measured value Allowable Range 10 MHz 99 7 ns to 100 3 ns 120 ps or less 166 6 MHz 5 7 ns to 6 3 ns 100 ps or less CH B Synthesized Signal Generator Frequency Average Standard Deviation Measur...

Page 208: ...tput of the synthesized signal generator to the input terminal CH A CH B of the TA720 TA720 8657 B 10MHz REF IN REFERENCE OUT OUTPUT CH B CH A Synthesized signal generator 8657B Instrument Settings TA720 Sampling mode Hardware histogram mode Input settings DC coupling 50 Ω both CH A and CH B trigger level 0 V Function Pulse width A B Gate Event 1000000 Reference External X Center X Span Input Freq...

Page 209: ...d value Allowable Range 10 MHz 48 4 ns to 51 6 ns 120 ps or less 83 3 MHz 5 0 ns to 7 0 ns 100 ps or less CH B Synthesized Signal Generator Frequency Average Standard Deviation Measured Value Allowable Range Measured value Allowable Range 10 MHz 48 4 ns to 51 6 ns 120 ps or less 83 3 MHz 5 0 ns to 7 0 ns 100 ps or less CH B Synthesized Signal Generator Frequency Average Standard Deviation Measured...

Page 210: ...low Connecting the Instruments Check that the power switch is turned OFF on all instruments before connecting the instruments Connect the output of the synthesized signal generator to the input terminal CH A CH B of the TA720 TA720 8657 B 10MHz REF IN REFERENCE OUT OUTPUT CH B CH A Synthesized signal generator 8657B Power divider Instrument Settings TA720 Sampling mode Hardware histogram mode Inpu...

Page 211: ...MHz 1 5 ns to 3 5 ns 100 ps or less A B Synthesized Signal Generator Frequency Average Standard Deviation Measured Value Allowable Range Measured value Allowable Range 10 MHz 0 9 ns to 4 1 ns 120 ps or less 166 6 MHz 1 5 ns to 3 5 ns 100 ps or less A B Synthesized Signal Generator Frequency Average Standard Deviation Measured Value Allowable Range Measured value Allowable Range 10 MHz 48 4 ns to 5...

Page 212: ... the power switch 2 Remove the power cord from the power connector 3 Insert the tip of a flat blade screw driver in the dented section of the fuse holder on the power connector side turn it in the direction of the arrow and remove the fuse holder 4 Remove the blown fuse that is attached to the tip of the fuse holder 5 Attach a new fuse to the fuse holder and attach the fuse holder back in the orig...

Page 213: ...tems items which wear out The replacement period for expendable items varies depending on the conditions of use Refer to the table below as a general guideline Contact your nearest YOKOGAWA dealer for replacement parts Parts Name Recommended Replacement Period Built in printer Under normal usage 120 rolls of paper part No B9850NX LCD backlight 3 years Cooling fan 3 years Backup battery lithium bat...

Page 214: ...ifference of CH B with respect to CH A when measuring A to B time interval period A A to B time interval or pulse width A A to B time interval Selectable range 0 to 10 0 ns resolution 0 1 ns Sampling Sampling mode Select from time stamp mode hardware histogram mode and inter symbol interference analysis mode Maximum sample rate When using the single measurement function 5 80 MS s continuous 12 5 n...

Page 215: ... A B 100 ps rms 1 A input trigger error 2 B input trigger error 2 trigger level timing error 4 Accuracy 3 When the slope is set to A B A B A B or A B Measurement resolution trigger level timing error frequency stability of the time base measured value 1 ns systematic error When the slope is set to A B or A B Measurement resolution frequency stability of the time base measured value 1 ns systematic...

Page 216: ...3 2 µs Measurement resolution Period measurement 100 ps rms 1 2 trigger error 2 A to B time interval measurement 100 ps rms 1 A input trigger error 2 B input trigger error 2 Accuracy 4 Period measurement Measurement resolution frequency stability of the time base measured value 300 ps systematic error A to B time interval measurement Measurement resolution trigger level timing error frequency stab...

Page 217: ...A A B Continuous A to B time interval measurement condition The time to the next A signal edge after the A to B time interval measurement is greater than equal to 13 ns and the time from the previous A signal edge is greater than or equal to 20 ns Pulse width A pulse Measurement range width B measurement When in time stamp mode 6 ns to 20 ms and pulse width A pulse When in hardware histogram mode ...

Page 218: ... Select from AUTO and EXT external External arming EXT setting Selectable range of delay time when set to time delay set the time for each measurement when using the dual measurement function 2 1 µs delay time 1 s resolution is 100 ns Selectable range of the event size when set to event delay Set the value for each measurement when using period A period B or pulse width A pulse width B measurement...

Page 219: ... used when using the dual measurement function 1 Minimum input pulse width 10 ns pulse width B is 20 ns Data extraction mode Select from Single Combination and Between Data extraction condition Select from nT nT to maxT and minT to nT n arbitrary value between 1 and 16 Trigger Select mark or space Target Select the analysis data with respect to the trigger from Prev Middle Next or Both Missed samp...

Page 220: ...window Sums the frequencies of all specified windows for each bin around the X axis center of each window Display style Switch the graph size between half and full turn ON OFF the statistics display turn ON OFF the panorama display turn ON OFF the both polarities both edges graph Both Graph and turn ON OFF the overlap of each polarity graph Select Stat Dev or σ when in hardware histogram mode or t...

Page 221: ...ondition Measured T CH B input 1025 cycles or more Estimated T Data rate 80 MS s or less sampling time 1 6 s or less when measuring pulse width or A to B time interval Data rate 50 MS s or less sampling time 1 6 s or less when measuring pulse width A A to B time interval pulse width A pulse width B T measurement range 7 ns to 250 ns 15 8 Rear Panel Input Output Item Specifications Reference input ...

Page 222: ...s Internal reference frequency Temperature compensated crystal oscillator 10 MHz Frequency stability Aging rate 1 5 ppm year Temperature characteristics 2 5 ppm in the range of 5 to 40 C with 25 C as the reference Frequency accuracy at factory shipment 0 5 ppm External adjustment Possible 15 11 Internal Memory Function Item Specifications 32 sets of setup parameters can be stored recalled to from ...

Page 223: ...age 90 to 132 VAC 180 to 264 VAC range Rated supply voltage 50 60 Hz frequency Permitted supply voltage 48 to 63Hz frequency range Maximum power 250 VA consumption Withstanding voltage 1 5 kVAC 10 mA or less for one minute between power supply and case Insulation resistance 500 VDC 10 MΩ or more between power supply and case Signal ground The ground of all input and output connectors is connected ...

Page 224: ...SCALE F U N C T I O N INPUT MARKER UTILITY SAMPLE DISPLA Y SCALE RESET SELSCT 426 13 177 20 13 277 23 12 28 MHz REFERENCE GATE OUT MONITOR OUT PROBE POWER ADJUST ETHERNET 100 240V AC 250VA MAX 50 60Hz FUSE 250V T 3 15A GP IB IEEE488 10BASE T TX LINK TTL 12V 50 10MHz OUT 1Vp p 10MHz REF IN 1Vp p 1Vp p CHB CHA WARNING Do not operate without reading safety precautions inusers manual Rear View If not ...

Page 225: ... Drive 11 30 dual measurement function 2 5 E EFM 2 18 8 7 EFM 2 18 8 7 Error in Execution 14 2 error log displaying of 14 5 error logging 2 27 ESC key 4 3 Estimated T 2 18 8 8 Ethernet 12 1 Ethernet port 12 1 Event 2 8 6 1 6 5 6 10 Symbols CSV 11 16 SET 11 8 1 7 2 18 8 7 10 MHz output 2 26 13 6 10 MHz reference input 2 26 10MHz OUT 13 6 A A to B time interval measurement 2 5 5 3 AC 2 11 accessorie...

Page 226: ...tings 13 1 initialization 13 1 Initialize 13 1 INITIALIZE key 1 3 input coupling 2 11 6 12 input impedance 2 11 6 12 INPUT key 1 3 installation condition 3 3 installation position 3 4 Int 6 15 inter symbol interference analysis mode 2 4 2 24 5 1 9 5 9 12 interval 2 8 6 4 IP address 12 2 12 3 ISI 2 24 5 1 9 5 Item 7 1 7 4 7 8 7 10 8 14 J jump 7 4 7 7 L Label 8 3 8 5 LCD 13 10 LCD setting of 13 10 L...

Page 227: ...10 PW PW 2 6 9 5 PW TI 2 6 9 5 R rack mount 3 5 readouts 2 19 rear panel 1 2 recall 2 26 10 2 11 6 11 9 recommended replacement parts 14 22 REF IN 6 15 Ref Clock 2 12 6 15 reference clock 2 12 6 15 Rename 11 22 repeat auto trigger 2 12 RepeatAuto 6 13 RESET key 4 3 RestMode 6 10 Right Marker 8 3 8 4 8 5 8 8 roll paper installation of 11 26 ROM Error 14 8 ROM version 13 9 rotary knob 4 3 S Sample 6...

Page 228: ... 15 7 8 Timeout 12 5 TimeStamp 5 1 TimeVar 2 15 7 8 Top 7 7 Trigger 6 12 trigger 2 11 6 12 trigger level 2 11 trigger mode 2 11 U Update to Window 8 3 8 4 UTILITY key 1 3 V Version 12 9 Version Information 13 9 W Warning 13 10 warning display 13 10 warning mark 14 4 warning messages 14 4 Wave 7 8 Window 7 11 8 6 9 1 9 2 Window Parameter Setting 8 1 8 2 window size 8 4 Window1 1T 8 6 Window1 2T 8 6...

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YOKOGAWA TA720, User Manual

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