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Teledyne LeCroy T3DSO2000A Series, User Manual

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Teledyne LeCroy T3DSO2000A Series User Manual Download Page 39

T3DSO2000A Manual. Page 35

Deskew

Due to the skew between channels, cables or probes, the delay of signals passing
through different measurement paths may be inconsistent. For example, two coaxial
cables with a 1-inch difference in length could introduce a skew of more than 100 ps. In
some scenarios (e.g. measuring the setup/hold time between clock and data), it may be
necessary to compensate the skew between channels.

The method of compensation: Probe the same signal simultaneously using two channels
(including the cables or probes that you intend to use for measurements) and adjust the
deskew parameter of one channel until the waveforms of the two channels observed on
the screen coincide horizontally.

Before deskew

After deskew

Note

: When the channel with deskew compensation is the trigger source, the trigger

delay indicator does not change as the deskew value changes.

Invert

When invert is enabled, the waveform is displayed 180 degrees opposite to the earth
potential. This is a mathematical inversion and does not physically change the actual
potential of the input signal.

Before Invert

After Invert

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Summary of Contents for LeCroy T3DSO2000A Series

Page 1: ...I User Manual T3DSO2000A Series Digital Oscilloscope www com information itm com 1 800 561 8187 ...

Page 2: ...roy for service or calibration The consigner or carrier will be responsible for damage to the instrument resulting from shipping Teledyne LeCroy will not provide free maintenance or replacement in this instance 2 Inspect the instrument If the instrument is found to be damaged defective or fails in electrical or mechanical tests please contact the Teledyne LeCroy service department immediately 3 Ch...

Page 3: ...read the manual to understand the input output ratings Do not operate with suspected failures If you suspect that the instrument is damaged contact the Teledyne LeCroy service department immediately Do not operate in wet damp conditions Do not operate in an explosive atmosphere Keep the surface of the instrument clean and dry Avoid touching exposed circuits or wires Do not touch exposed contacts o...

Page 4: ...rame or Chassis Terminal Measuring Terminal Ratings Ch1 Ch4 50 Ω Max 5 Vrms 10 V pk 1 MΩ Max 400 V pk DC peak AC DC 10 kHz Derated Voltage 400Vmax to 10 KHz derated at 20 dB decade to 10 V max at 400 KHz No rated measurement category per IEC EN 61010 031 2015 Measuring terminals on this product are not intended to be connected directly to mains Operating Environment Temperature 10 C to 40 C Relati...

Page 5: ...rument has passed both electrical and mechanical tests It is always good practice to save the shipping container and packaging for use when returning the power supply to Teledyne LeCroy for service or calibration The consigner or carrier will be responsible for damage to the instrument resulting from shipping Teledyne LeCroy will not provide free maintenance or replacement in this instance 2 Inspe...

Page 6: ...ent please do not use any corrosive liquid or chemical cleanser Make sure that the instrument is completely dry before restarting it to avoid short circuit or personal injury End of Life Handling The instrument is marked with this symbol to indicate that it complies with the applicable European Union requirements to Directives 2012 19 EU and 2013 56 EU on Waste Electrical and Electronic Equipment ...

Page 7: ... 12 7 QUICK START 13 7 1 FRONT PANEL OVERVIEW 13 7 2 REAR PANEL OVERVIEW 14 7 3 CONNECTING TO EXTERNAL DEVICES SYSTEMS 15 7 3 1 Power Supply 15 7 3 2 LAN 15 7 3 3 USB Peripherals 15 7 3 4 Auxiliary Output 15 7 3 5 Probes 15 7 3 6 Logic Probe 15 8 TOUCH SCREEN DISPLAY 16 8 1 OVERVIEW 16 8 2 MENU BAR 17 8 3 GRID AREA 18 8 4 CHANNEL DESCRIPTOR BOX 19 8 5 TIMEBASE AND TRIGGER DESCRIPTOR BOXES 20 8 6 D...

Page 8: ...HORTCUT BUTTON ON THE FRONT PANEL 30 11 QUICKLY CAPTURE THE SIGNAL 31 12 VERTICAL SETUP 31 12 1 TURN ON OFF A CHANNEL 31 12 2 CHANNEL SETUP 32 13 DIGITAL CHANNELS 36 13 1 OVERVIEW 36 13 2 ENABLE DISABLE THE DIGITAL CHANNELS 37 13 3 DIGITAL CHANNEL SETUP 38 14 HORIZONTAL AND ACQUISITION SETUP 40 14 1 TIMEBASE SETUP 40 14 2 ACQUISITION SETUP 41 14 2 1 Overview 41 14 2 2 Acquisition 43 14 2 3 Roll Mo...

Page 9: ...W 74 16 2 I2C TRIGGER AND SERIAL DECODE 76 16 2 1 I2C Signal Settings 76 16 2 2 I2C Trigger 77 16 2 3 I2C Serial Decode 80 16 3 SPI TRIGGER AND SERIAL DECODE 82 16 3 1 SPI Signal Settings 82 16 3 2 SPI Trigger 85 16 3 3 SPI Serial Decode 85 16 4 UART TRIGGER AND SERIAL DECODE 85 16 4 1 UART Signal Settings 85 16 4 2 UART Trigger 86 16 4 3 UART Serial Decode 86 16 5 CAN TRIGGER AND SERIAL DECODE 87...

Page 10: ...ttings 98 16 10 2 MIL STD 1553B Serial Decode 98 17 CURSORS 99 17 1 OVERVIEW 99 17 2 SELECT AND MOVE CURSORS 105 18 MEASUREMENT 106 18 1 OVERVIEW 106 18 2 SET PARAMETERS 108 18 3 TYPE OF MEASUREMENT 110 18 3 1 Vertical Measurement 110 18 3 2 Horizontal Measurement 112 18 3 3 Miscellaneous Measurements 113 18 3 4 Delay Measurement 114 18 4 TREND 115 18 5 DISPLAY MODE 116 18 6 MEASUREMENT STATISTICS...

Page 11: ...2 POWER QUALITY 149 25 3 CURRENT HARMONICS 151 25 4 INRUSH CURRENT 152 25 5 SWITCHING LOSS 153 25 6 SLEW RATE 155 25 7 MODULATION 156 25 8 OUTPUT RIPPLE 157 25 9 TURN ON TURN OFF 157 25 10 TRANSIENT RESPONSE 159 25 11 PSRR 160 25 12 POWER EFFICIENCY 161 26 BODE PLOT 162 26 1 OVERVIEW 162 26 2 CONFIGURATION 163 26 2 1 Connection 163 26 2 2 Sweep 163 26 3 DISPLAY 165 26 4 DATA ANALYSIS 167 27 DISPLA...

Page 12: ...30 3 UPGRADE SOFTWARE 185 30 4 LANGUAGE 187 30 5 SCREEN SAVER 187 30 6 I O SETTING 187 30 6 1 LAN 187 30 6 2 VNC Port 188 30 7 DATE TIME 188 30 8 INSTALL OPTIONS 188 30 9 REFERENCE POSITION SETTING 189 30 10 PERFORM SELF TEST 191 30 11 DO SELF CAL 193 30 12 DEFAULT 194 30 13 POWER ON LINE 194 30 14 DEBUG 194 31 REMOTE CONTROL 194 31 1 WEB BROWSER 194 31 2 OTHER CONNECTIVITY 195 32 TROUBLESHOOTING ...

Page 13: ...any omissions or damage please contact your nearest Teledyne Test Tools customer service center or distributor as soon as possible If you fail to contact us immediately in case of omission or damage we will not be responsible for replacement 2 2 Quality Assurance The oscilloscope has a 3 year warranty 1 year warranty for probes from the date of shipment during normal use and operation Teledyne Tes...

Page 14: ...lickable menu button region on the touch screen For example DISPLAY represents the DISPLAY menu on the screen For the operations that contain multiple steps the description is in the form of Step 1 Step 2 As an example follow each step in the sequence to enter the upgrade interface Utility System Setting Upgrade Press the Utility button on the front panel as step 1 click the System Setting option ...

Page 15: ... The power cord should be unplugged from the AC outlet if the scope is not to be used for an extended period of time 5 1 System Status Follow the steps below to examine the software and hardware versions of the oscilloscope Utility System Setting System Status See the section System Status for details 5 2 Install Options A license is necessary to unlock a software option See the section Install Op...

Page 16: ...pensated or poorly compensated probe may increase measurement inaccuracy or error The probe compensation procedures are as follows 1 Connect the coaxial cable interface BNC connector of a passive probe to any channel of the oscilloscope 2 Connect the probe to the Compensation Signal Output Terminal Cal on the front of the oscilloscope Connect the ground alligator clip of the probe to the Ground Te...

Page 17: ...round Terminal Supplies a 0 3 3 V 1 kHz square wave for compensating the probes E USB Host Ports Connect the USB host ports to USB storage devices for data transfer or USB mouse keyboard for control F Digital Input Connector Receives digital signals from the T3DSO2000 LS digital probe G Analog Input Connectors H Power Switch I Supporting Legs Adjust the supporting legs properly to use them as stan...

Page 18: ...ts the pass fail signal B Ext Trigger Input C LAN Port Connect the port to the network for remote control D USB Ports One USB device to connect with a PC for remote control and one USB host to connect with a USB storage device or USB mouse keyboard E AC Power Input F Handle A B C D E F www com information itm com 1 800 561 8187 ...

Page 19: ...one of the USB host ports for data transfer or connect USB mouse keyboard to one of the USB host ports for controlling the instrument 7 3 4 Auxiliary Output When Mask Test is enabled the port outputs the pass fail signal otherwise it outputs the trigger indicator See the chapter Mask Test for more details 7 3 5 Probes The T3DSO2000A series oscilloscope supports active probe and passive probes The ...

Page 20: ...buttons to access other functions If you using any mouse you can click anywhere that you can touch to activate a control in fact you can alternate between clicking and touching the control whichever is convenient A Menu Bar B Grid Area C Trigger Level Indicator D Cursors E Channel Descriptor box F Trigger Delay Indicator G Timebase and Trigger descriptor box H Menu Descriptor Box B A C D D E F G H...

Page 21: ... timebase and trigger respectively Touching the boxes creates a dialog box for the selected item The backlight of the display is adjustable Follow the steps below to adjust the backlight Display Backlight 8 2 Menu Bar Menu bar with drop down menus lets you access set up dialogs and other functions All functionality can be accessed through the menu bar It is not necessary for common operations You ...

Page 22: ... these parameters Display Intensity Display Graticule There are multiple indicators on the grid Trigger Level Indicator shows the level where the waveform triggers on the vertical axis Trigger Delay Indicator locates where the waveform triggers on the horizontal axis When the trigger position is outside the screen the direction of the triangle changes to point outside the screen Channel Offset Ind...

Page 23: ... 200 MHz bandwidth limit On the 500 MHz model anti aliasing filter is automatically turned on when the channel is in non interleaving mode i e sample rate 1 GSa s The bandwidth of the anti aliasing filter is around 350 MHz None Full bandwidth Invert Indicator shows that the current channel is inverted Invert has been turned on None Invert has been turned off Coupling and Input Impedance DC couplin...

Page 24: ...et the factor to 10X 1 1 attenuation suitable for direct coaxial cable connection or passive probes with 1X attenuation 10 1 attenuation suitable for general passive probes or active probes with 10X attenuation 100 1 attenuation suitable for some high voltage probes Custom attenuation factor 8 5 Timebase and Trigger Descriptor Boxes A Trigger delay B Horizontal scale timebase C Samples D Sample Ra...

Page 25: ...l is coupled through a capacitive high pass filter network DC is rejected and low frequencies are attenuated For stable triggering on medium to high frequency signals See the datasheet for details of the cut off frequency Trigger mode Auto The oscilloscope will sweep without a set trigger An internal timer triggers the sweep after a preset timeout period so that the display refreshes continuously ...

Page 26: ...ot displayed To Set Parameters The T3DSO2000A provides a couple of different ways to input select parameters Switch Sets parameters with two states such as to enable or disable a function Touch the switch region to change from one state to the other List Sets parameters with more than two options such as the coupling mode of channels Touch the parameter region and then select the expected option f...

Page 27: ... grid area will be compressed horizontally to display the complete waveform After setting the parameters in order to achieve the best waveform display effect you can touch the title bar in the upper right corner to hide the dialog box Touching it again can open the dialog box 8 7 Touch Gestures Waveforms cursors and trigger levels can be adjusted and rectangular zone can be drawn by touch gestures...

Page 28: ...tical gain Touch and drag the cursor to move it Touch and drag the cursor information region to move the pair of cursors simultaneously Draw a rectangular box to create a zone or a histogram region At the beginning of the gesture keep the angle close to 45 so it can be recognized as the drawing box gesture www com information itm com 1 800 561 8187 ...

Page 29: ...age Follow Utility System Setting Language to choose the language See the section Language for details 9 Front Panel 9 1 Overview The front panel is designed to operate the basic functions without having to open the software menu Most of the front panel controls duplicate functionality available through the touch screen display but the operation is more quickly achieved All the knobs on the front ...

Page 30: ...tical scale volts div Push to alternate between coarse and fine adjustments When the digital channel is active rotate the knob to change the selected digital channel F Analog channels C1 C4 digital channels D math F1 F2 and references Ref share the same offset knob Rotate the knob to adjust the DC offset or vertical position of the channel Push to set the offset to zero When the digital channel is...

Page 31: ...ger status light Ready or Trig d 9 5 Run Stop Button Press the button to switch the acquisition state between Run and Stop When the state is Run and the button is illuminated in yellow When the state is Stop the button is illuminated in red 9 6 Auto Setup Button The oscilloscope will automatically set the vertical scale horizontal scale and trigger level according to the input signal to get the op...

Page 32: ...ch function D Press the button to turn on serial bus decode function and open the DECODE dialog box Press again to turn off the decode function 9 8 Cursors Control A Push the button to open the cursors setup dialog box B Rotate the knob to move the selected cursor Push to select a different cursor 9 9 Universal Knob When the parameter setting area is highlighted you can use the Universal Knob to a...

Page 33: ...Fail statistics Recalls the ACQUIRE dialog box Press the button to recall the DISPLAY dialog box The second press turns on Persist and lights the button Press the button again to turn off Persist Recalls the SAVE RECALL dialog box Recalls the UTILITY dialog box Recalls the AWG dialog box The LED on the button lights to indicate the output of the AWG is enabled 10 Multiple Approaches to Recall Func...

Page 34: ...e descriptor box see sections Channel Descriptor Box and Timebase and Trigger Descriptor Box For the example above touch the trigger descriptor box and the trigger setup dialog box will be activated 10 3 Shortcut Button on the Front panel Most of the functions of the oscilloscope can be recalled directly by the shortcut buttons on the front panel See the chapter Front Panel for details To open the...

Page 35: ... especially time varying bursts or slow signals 100 Hz If Auto Setup cannot achieve desired settings you can manually adjust the vertical horizontal and trigger systems See the chapters Vertical Setup Horizontal and Acquisition Setup and Trigger for details 12 Vertical Setup 12 1 Turn on off a Channel From the Front Panel Push the channel button 1 4 to turn on the corresponding channel Its channel...

Page 36: ... Set the offset to zero G Copy the setting of current channel to another channel H Quickly apply current channel as source of a specified operation I Disable the channel J Open the dialog box on the right side The vertical scale can be adjusted in coarse or fine mode Use fine mode to scale the display such that the waveform fills the entire display to achieve the best measurement accuracy in the v...

Page 37: ...e for observing AC signals with DC offset such as power ripple GND The channel is grounded by an internal switch GND coupling is used to observe the zero offset error of the analog channels or determine the source of noise in the waveform from signal or from oscilloscope itself Bandwidth Limit Full bandwidth will pass through signals with high frequency components but it also means that noise with...

Page 38: ...isplayed When the Display option is set to on the label will be displayed on the right side of the channel offset indicator The labels are hidden The displayed labels Applied to With this setting some common functions such as Trigger Cursor Measure FFT Search Mask Test Counter and AWG can be quickly applied to the selected channel Once a function is specified it will switch directly to the functio...

Page 39: ...eously using two channels including the cables or probes that you intend to use for measurements and adjust the deskew parameter of one channel until the waveforms of the two channels observed on the screen coincide horizontally Before deskew After deskew Note When the channel with deskew compensation is the trigger source the trigger delay indicator does not change as the deskew value changes Inv...

Page 40: ...associated equipment the following safety precautions should be noted The equipment shall be used only for the purposes specified by the manufacturer The T3DSO2000 LS probe is used only for Teledyne Test Tools series of oscilloscopes Protection mechanisms can be compromised if the way the devices connected by the T3DSO2000 LS are not used for their intended purpose Connect and disconnect correctly...

Page 41: ...ctions to the oscilloscope Digital channel acquisition and analysis Acquire and analyze the signals connected to the digital logic probe including waveform display save parameter measurement etc Trigger on a digital channel Trigger with the digital channel as the trigger source isolating events of interest Decode on a digital channel Serial protocol decoding of a digital channel requires the insta...

Page 42: ...enu to turn off Refer to the operation in the chapter Vertical Setup for details 13 3 Digital Channel Setup Touch the digital descriptor box then the quick menu of digital channel settings pops up above the descriptor box In the menu height and position of digital channels can be set A Upper position limit of the digital channel display area You can use the universal knob or virtual keypad to set ...

Page 43: ...m characters C The logic threshold of D7 D0 The oscilloscope will automatically set the threshold according to specified logic family or users can set the threshold by manual using the Custom option D Logic threshold of D15 D8 E Set the channels to be displayed F Deskew setting G Bus setting Logic Threshold Setting The threshold level determines how the input signal is evaluated The threshold leve...

Page 44: ... 14 Horizontal and Acquisition Setup 14 1 Timebase Setup The timebase setup is used to adjust the scale and offset of the X horizontal axis This setting applies to all analog digital channels and all math traces except FFT Touch the timebase descriptor box the quick menu of the timebase settings will pop up In the menu timebase horizontal scale delay and other parameters can be set www com informa...

Page 45: ...ialog box 14 2 Acquisition Setup 14 2 1 Overview Touch Acquire Menu on the quick menu of the timebase settings or press the Acquire button on the front panel or touch the menu bar Acquire Menu to recall the Acquire dialog box on the right side A Select the interpolation mode B Select the Acq mode C Select the acquisition mode Normal Peak D Select the maximum memory depth E Recall the sequence dial...

Page 46: ...ptor box see the section Timebase and Trigger for details The maximum memory depth in single channel mode is 2 times that of the dual channel mode as the following table Single Channel Mode Single channel mode interleaving mode Only one of C1 C2 is turned on and only one of C3 C4 is turned on Dual channel mode non interleaving mode Both C1 C2 are turned on or both C3 C4 are turned on Interpolation...

Page 47: ...sed to determine how to acquire and process the signal Normal The oscilloscope samples the signal with an equal time interval For most waveforms the best display effect can be obtained using this mode Peak Peak detect mode The oscilloscope acquires the maximum and minimum values of the signal within the sample interval so that the peak maximum minimum in the interval is obtained This mode is effec...

Page 48: ...ion in Roll mode press the Run Stop button again 14 2 4 Sequence Touch Acquire Sequence to recall sequence dialog box A Turn on or off sequence B Set the segment Sequence mode is a fast acquisition mode which divides the memory depth to multiple segments up to 90 000 each of which stores a single shot In sequence mode the oscilloscope only acquires and stores data without processing and displaying...

Page 49: ... it can capture and record rare events over long time periods The oscilloscope can capture multiple events that satisfy the trigger conditions ignoring the periods of no interest between adjacent events thus maximizing the use of waveform memory You can use the full accuracy of the acquisition timebase to measure selected segments Example Input a pulse sequence with a period of 50 ms to C1 The ris...

Page 50: ...is example up to 90 000 depending on the number of samples at the current time base Wait patiently until the acquisition completes then all the waveforms satisfying the trigger conditions are displayed onto the screen In Sequence mode there is no waveform displayed on the screen until the acquisition is completed During acquisition there is a counter on the screen indicating the number of segments...

Page 51: ...box A Turn on or off history mode B Specify the frame index C Set the playing mode D Play backward pause and play forward E Turn on or off the list F List time type G Set the time interval between two frames when playing automatically H Enable Stop on Search Event function which allows to navigate search events across history frames I List displays the frame index and time label for each frame www...

Page 52: ...a twice then the virtual numeric keypad pops up Input the number 412 to specify the 412th segment frame Observing the 412th frame captured by Sequence in history mode Touch the List area turn on the list in which the time label corresponding to the 5412th waveform is displayed The time resolution is microseconds Time label types include AcqTime or Delta T AcqTime corresponds to the absolute time o...

Page 53: ...orm area is divided into upper and lower parts The area of about 1 3 height above is the main window and the area of about 2 3 height below is the zoom window Touch a window to activate it The area not covered by the grey background in the main waveform area is the region to be zoomed in zoom area When the zoom window is activated the zoom area can be expanded or compressed by rotating the horizon...

Page 54: ...rizontal position of the waveform by dragging left and right in the gray area of the main window Adjust the horizontal scale of the Zoom window by horizontal pinch and spread in the zoom area of the main window or in the Zoom window Adjust the horizontal scale of the main window by pinch and spread in the gray area of the main window www com information itm com 1 800 561 8187 ...

Page 55: ...vent the data fills the post trigger buffer When the post trigger buffer is full an acquisition is completed Below are the definitions of the states in the process of filling the acquisition memory Arm The pre trigger buffer is not full and the oscilloscope does not respond to any trigger events Ready The pre trigger buffer is full and the oscilloscope is waiting for the trigger event Trig d A tri...

Page 56: ...equivalent to pressing the Single button on the front panel F Set the trigger mode to Normal which is equivalent to pressing the Normal button on the front panel A Select trigger type B Select the trigger source C Select the trigger slope When the trigger type is Edge Slope and other specific types D Set holdoff None Time Events E Set trigger coupling mode DC AC LF Reject HF Reject F Enable disabl...

Page 57: ...trigger condition is set as to capture a rising edge When the signal with positive slope crosses the trigger level the trigger condition is satisfied and the point the signal crosses the level is the zero trigger position This is shown in the example below where the blue and yellow dashed lines intersect Note that the positions are shown on the scope by blue and yellow triangles The blue and yello...

Page 58: ... acquiring Only events specified by the trigger settings Rare events Single Captures and displays a single frame which satisfies the trigger conditions and then stops The following trigger events are ignored until the Single acquisition is restarted Single mode is suitable for One shot events or periodic signals such as power on off waveforms on a power rail Rare events 15 5 Trigger Type 15 5 1 Ov...

Page 59: ...or details 15 5 2 Edge Trigger Edge trigger distinguishes the trigger points by seeking the specified edge rising falling rising falling and trigger level Trigger source and slope can be set in the trigger dialog box Trigger level Touch the Source area to select trigger source and touch the Slope area to select rising falling or alter Rising Only trigger on the rising edge Falling Only trigger on ...

Page 60: ...menu will show two levels The upper lower level can be set in the following two ways 1 Touch the Level Upper area in the quick menu to select the upper level and then set the level value by the virtual keypad or the Level knob on the front panel To set the lower level is similar 2 Use the Level knob on the front panel directly to set the level value Press the knob to switch between upper and lower...

Page 61: ...limit of time and lower than the specified lower limit of time value Holdoff coupling and noise reject can be set in slope trigger see the sections Holdoff Trigger Coupling and Noise Reject for details 15 5 4 Pulse Trigger Trigger on a positive or negative pulse with a specified width Trigger source polarity positive negative limit range and time value can be set in the trigger dialog box Positive...

Page 62: ...fied upper limit of time and lower than the specified lower limit of the time value Holdoff coupling and noise reject can be set in pulse trigger see the sections Holdoff Trigger Coupling and Noise Reject for details 15 5 5 Video Trigger The video trigger can be used to capture the complicated waveforms of most standard analog video signals The trigger circuitry evaluates the vertical and horizont...

Page 63: ...the custom video trigger Frame Rate 25Hz 30 Hz 50 Hz 60 Hz Of Lines 300 2000 Of Fields 1 2 4 8 Interlace 1 1 2 1 4 1 8 1 Line value The number of lines set in the Of Lines 300 2000 In the custom video trigger type the corresponding Of Fields varies with the selection of the Interlace ratio Therefore the number of fields selected and the number of lines corresponding to each field can also be varie...

Page 64: ...he corresponding relations between line and field for all video standards except for Custom To gain familiarization with the video trigger try these two examples Trigger on a specific line of video NTSC standard Use Custom to trigger video signals Trigger on a Specific Line of Video Video trigger requires that any analog channel can be used as the trigger source with a synchronization amplitude gr...

Page 65: ...me rates of 25 30 50 and 60 Hz respectively and the specified row is within the range of 300 to 2000 The following describes how to trigger a Custom video signal 1 Press the Setup button on the front panel to open the trigger menu 2 In the trigger menu touch the Type select the Video 3 Touch the Source and select CH1 as the trigger source 4 Touch the Standard and select the Custom 5 Touch the Cust...

Page 66: ...te window type the lower and the upper trigger levels can be adjusted separately The relative window provides adjustment for the Center value to set the window center and a Delta value to set the window range In this mode the lower and the upper trigger levels always move together If the lower and the upper trigger levels are both within the waveform amplitude range the oscilloscope will trigger o...

Page 67: ...resents half of the actual window area For example when the value is 200 mV it actually represents a range of 200 mV which is a 400 mV window Holdoff coupling and noise reject can be set in window trigger see the sections Holdoff Trigger Coupling and Noise Reject for details 15 5 7 Interval Trigger Trigger when the time difference between the neighboring rising or falling edges meets the time limi...

Page 68: ...re below State Trigger when the time interval T from when the rising edge or falling edge of the input signal passes through the trigger level to when the neighboring falling edge or rising edge passes through the trigger level is greater than the set time as shown in the figure below Trigger source slope rising falling dropout type and time value can be set in the trigger dialog box Holdoff coupl...

Page 69: ...doff coupling and noise reject can be set in the dropout trigger see the sections Holdoff Trigger Coupling and Noise Reject for details 15 5 10 Pattern Trigger The Pattern trigger identifies a trigger condition by looking for a specified pattern The T3DSO2000A provides 4 patterns logical AND OR NAND and NOR combination of the channels Each channel can set to Low High or Don t Care If all channels ...

Page 70: ...termined by setting the Level Value When digital channels are turned on the logic state of the digital channel can also be set in the source setting dialog box Limit Range When the logic is AND or NOR the time limit condition is available This setting is particularly useful to filter the hazard signals of combinational logic When the logic is OR or NAND the time limit setting is not supported Hold...

Page 71: ...an be set to a time or number of events Holdoff by Time Holdoff time is the amount of time that the oscilloscope waits before re arming the trigger circuitry The oscilloscope will not trigger until the holdoff time expires Use the holdoff to trigger on repetitive waveforms that have multiple edges or other events between waveform repetitions You can also use holdoff to trigger on the first edge of...

Page 72: ...time point satisfying the trigger condition In the example above each holdoff starts from the first rising edge of the pulse sequence Last Trig Time The initial position of holdoff is the time of the last trigger In the example above the last trigger position is at the second rising edge of the pulse sequence and the second holdoff starts from that point 15 8 Trigger Coupling The coupling setting ...

Page 73: ...rough a capacitive high pass filter network DC is rejected and low frequencies are attenuated For stable triggering on medium to high frequency signals See the datasheet for details of the cut off frequency 15 9 Noise Reject Noise Reject adds additional hysteresis to the trigger circuitry By increasing the trigger hysteresis the noise immunity becomes better but the trigger sensitivity degrades No...

Page 74: ... the zone Touch Trigger Zone to recall zone dialog box A Turn on or off zone trigger B Select the source C1 C4 C Turn on or off zone1 D Set the property of zone1 Intersect or Not intersect E Set the coordinate of zone1 The range is within the waveform area F Turn on or off zone2 G Set the property of zone2 Intersect or Not intersect H Set the coordinate of zone2 The range is within the waveform ar...

Page 75: ...and draw a rectangular box as shown in the following figure When the users finger moves off the screen a menu pops up for selecting the zone and setting the zone properties Once a zone is created it can be moved by dragging Just touch and hold the zone box and use a dragging gesture www com information itm com 1 800 561 8187 ...

Page 76: ...rder of the zone D Set the bottom border of the zone E Return to previous menu Touch the regions above to set the value by the universal knob or the virtual keypad Note If zone1 and zone2 are both turned on the result of the AND operation in two zones becomes the qualifying condition of triggering Below is an example in which we want to capture a waveform of bus contention using the T3DSO2000A Wit...

Page 77: ...on happening by enabling the persistence display as shown in the figure below In this case the zone trigger is a quick and simple way to capture the interesting waveform Enable the zone trigger and draw a box to intersect with the bus contention part as shown in the figure below www com information itm com 1 800 561 8187 ...

Page 78: ...N and also support optional FlexRay CAN FD I2S and MIL STD 1553B Press the Setup button on the front panel or touch the trigger descriptor box and then select the Type as Serial in the trigger dialog box to set the serial trigger A Select the type as Serial B Select the serial bus protocol C Set the signal including the mapping relation between channels and bus signals and the thresholds D Trigger...

Page 79: ...sholds This is similar with the signal setting of serial trigger G Configure the bus protocol H Synchronize the settings between serial trigger and decode Below are detailed descriptions of the trigger and decoding steps for each protocol I2C Trigger and Serial Decode SPI Trigger and Serial Decode UART Trigger and Serial Decode CAN Trigger and Serial Decode LIN Trigger and Serial Decode FlexRay Tr...

Page 80: ...s between decode and trigger please perform Copy Setting in the decode dialog box A Set the source of SCL In the example above SCL is connected to C4 B Set the threshold level of SCL It is 1 7V for the LVTTL signal in this example C Set the source of SDA In the example above SDA is connected to C1 D Set the threshold level of the SDA channel E Return to the previous menu F Threshold level line It ...

Page 81: ...gh Stop The oscilloscope will be triggered when the SDA line transitions from low to high while the SCL is high Restart The oscilloscope will be triggered when another Start occurs before a Stop No Ack The oscilloscope will be triggered when the SDA line is high during any SCL s ACK bit EEPROM The trigger searches for the EEPROM control byte value 1010xxx on the SDA bus And there is a Read bit and...

Page 82: ...o 0xXX If all bits match then trigger on the Ack bit followed by the R W bit Frame Start 7 bit address R W Ack Data Ack Data2 If all bits match then trigger on the Ack bit followed by the Data2 10 Address Data If all bits match then trigger on the Ack bit followed by the Data Frame Start Address 1st byte R W Ack Address 2nd byte Ack Data www com information itm com 1 800 561 8187 ...

Page 83: ...cted as 0xXX the data is ignored It will always trigger on the Ack bit followed by the address R W Bit can be specified as Write Read or Don t Care Data Length The data length range is 1 to 12 bytes When the SDA data length is equal to the value of the Data Length setting and the address length is the same as the set value the oscilloscope will be triggered Touch the Address Length to select 7 bit...

Page 84: ...ecoding results of multiple frames can be displayed in the list in which each row shows the time label and decode result of a frame Touch Result List to set the parameters of the list D Decode dialog box Bus The address value is displayed at the beginning of a frame The write address is displayed in green and read address in yellow W R bit is represented by W and R followed by the address value Th...

Page 85: ... Data bytes Configuration There is only one item Include R W Bit in the configuration of the I2C decode When it is disabled the address is represented separately from the R W bit and when it is enabled the R W bit is represented together with the address For example the address 0x4E Write Ack is displayed as 0x4E W when the R W bit is not included and is displayed as 0x9C when the R W bit is inclu...

Page 86: ...y the Edge Select Rising Data latched on the rising edge of the clock Falling Data latched on the falling edge of the clock The user can select the edge according to the actual phase relationship between the clock and data of the SPI bus Referring to the following figure when the falling edge of the clock is aligned with the data the rising edge is selected to latch the data When the rising edge o...

Page 87: ...C Signal Settings for details Example Connect the data CLK and CS signals of an SPI bus respectively to C1 C2 and C3 Data width 8 bit Bit order MSB CS polarity active low and 12 data bytes are transmitted in one frame In the SPI trigger signal menu set the source and threshold of CLK MISO and CS signals then copy the trigger settings to decoding Adjust the timebase so that there is a falling edge ...

Page 88: ...et to be greater than 8 bits such as 16 bits measure the clock idle time between 8 bit data packets as 20 μs and then set the timeout time to a value between 20 and 300 μs In this example it is set to 30 μs www com information itm com 1 800 561 8187 ...

Page 89: ...ggering and decoding UART signals Please read the following for more details UART Signal Settings UART Trigger and UART Serial Decode 16 4 1 UART Signal Settings Connect the RX and TX signals to the oscilloscope set the mapping relation between channels and signals and then set the threshold level of each signal The process of specifying the source and threshold is similar to I2C Signal Settings I...

Page 90: ...ition Start The oscilloscope triggers when the start bit appears on the RX TX Stop The oscilloscope triggers when the stop bits appear on the RX TX It always triggers on the first stop bit Data Trigger on data Touch Compare Type to select or Touch Value to set the data value by the universal knob or virtual keypad The range of data value is 0x00 to 0xff Error The oscilloscope performs parity check...

Page 91: ... details 16 5 2 CAN Trigger Touch Trigger Setting in the CAN trigger dialog box to set the trigger condition Start The oscilloscope triggers at the beginning of the frame Remote The oscilloscope triggers on a remote frame with a specified ID ID ID Bits 11 bit or 29 bit and Curr ID Byte 1st 2nd 3rd or 4th byte can be set Curr ID Byte is used to specify the byte to be adjusted when using the univers...

Page 92: ...he complete content of a frame and some content is hidden In the list view Time The horizontal offset of the current data frame head relative to the trigger position Type Type of the frame The data frame is represented by D and the remote frame is represented by R ID ID of the frame 11 bits or 29 bits ID are automatically detected Length Data length Data Data values CRC Cycle redundancy check Ack ...

Page 93: ...tings is the same as I2C signal settings See I2C Signal Settings for details 16 6 2 LIN Trigger Touch Trigger Setting in the LIN trigger dialog box to set the trigger conditions Break The oscilloscope triggers at the beginning of the frame ID The oscilloscope triggers on the frame that matches the specified ID which ranges from 0x00 to 0x3f ID Data The oscilloscope triggers on the frame that match...

Page 94: ... and Serial Decode This section covers triggering and decoding FlexRay signals Please read the following for more details FlexRay Signal Settings FlexRay Trigger and FlexRay Serial Decode 16 7 1 FlexRay Signal Settings Connect the FlexRay signal to the oscilloscope and then set the threshold level of the signal The process of specifying the source and threshold is similar to I2C Signal Settings DY...

Page 95: ...ompare Type to select or When setting the Compare Type as the repetition factor is also required Touch Cycle to set the cycle count by the universal knob or virtual keypad The range of data value is 0 to 63 Symbol The oscilloscope triggers on CAS MTS Conflict Avoidance Symbol Media access Test Symbol or WUS Wake up Symbol Errors The oscilloscope will trigger when a data error happens including err...

Page 96: ...ow D data is displayed in the frame and displayed in white FCRC Data Check Code is displayed in the frame and displayed in blue In the list view Time The horizontal offset of the current data frame head relative to the trigger position FID Frame ID symbol occupies a single line of the list PL Valid Data Length HCRC Head Check Code CYC Cycle count Data Data values FCRC Data Check Code www com infor...

Page 97: ...signal settings See I2C Signal Settings for details 16 8 2 CAN FD Trigger Touch Trigger Setting in the CAN FD trigger dialog box to set the trigger conditions A Frame Type Both CAN CAN FD B When the Frame Type is CAN FD turn on or off ISO C When the Frame Type is CAN FD set the BRS Bit Rate Switch to Both Normal or FD D Trigger Condition Start Remote ID ID Data Error E Return to previous menu Trig...

Page 98: ... incorrect Stuff Bit Cnt Par Err Effective only when ISO is turned on the oscilloscope triggers when the polarity of the stuff bit count is incorrect 16 8 3 CAN FD Serial Decode The configuration of CAN FD decoding is similar to that of I2C decoding On the bus ID is displayed in green BRS Bit Rate Switch is displayed in light yellow ESI Error State Indicator is displayed in blue L Data Length is d...

Page 99: ...ing and decoding I2S signals Please read the following for more details I2S Signal Settings I2S Trigger and I2S Serial Decode 16 9 1 I2S Signal Settings Connect the WS BCLK and Data signals to the oscilloscope set the mapping relation between channels and signals and then set the threshold level of each signal The process of specifying the source and threshold is similar to I2C Signal Settings BCL...

Page 100: ... Variant Audio I2S Audio LJ Audio RJ B Trigger Condition Data Mute Clip Glitch Rising Edge Falling Edge C Channel Set the channel to trigger Left or Right D Set the bit order to MSB or LSB E Start Bit The start bit of data range from 0 to 31 F Data Bits Specify the number of bits per channel range from 1 to 32 bits G When the Trigger Condition is Data set the compare type to H When the Trigger Con...

Page 101: ...within the audio signal Touch Threshold to set the threshold by the universal knob or virtual keypad The range of value is related to the number of Data Bits Rising Edge Trigger on signals greater than the Threshold setting value Touch Threshold to set the threshold by the universal knob or virtual keypad The range of values is related to the number of Data Bits Falling Edge Trigger on signals les...

Page 102: ...d level of each signal The process of specifying the source and threshold is similar to I2C Signal Settings 16 10 2 MIL STD 1553B Serial Decode The configuration of MIL STD 1553B decoding is similar to that of I2C decoding On the bus C S the Command Status word is displayed in green RTA the RT address is displayed in the frame and displayed in light yellow C S Data is displayed in the frame and is...

Page 103: ...ues amplitude on a selected waveform CH1 CH2 CH3 CH4 F1 F2 REFA REFB REFC REFD Press the Cursors button on the front panel or touch the menu Cursors Menu to open cursors dialog box A Turn on or off cursors function B Cursors Mode The vertical cursors will automatically track the waveform in Trace mode C Specify the cursor and set the position by gestures universal knob or virtual keypad D Select t...

Page 104: ...l vertical is available in this mode Track The cursor type is automatically set to horizontal vertical In this mode only horizontal cursors are adjustable while the vertical cursors automatically attach to the cross point of the cursor and the source waveform Manual Mode Track Mode www com information itm com 1 800 561 8187 ...

Page 105: ...e screen X2 The right default vertical dotted line It can be manually moved to any horizontal position on the screen X1 X2 The difference between X1 and X2 After this option is selected turning the universal knob will move both X1 and X2 simultaneously Y vertical Horizontal dotted lines that measure vertical voltage or current depending on the unit of the selected channel When the cursor s source ...

Page 106: ...ly X Y horizontal vertical Both the X cursors and Y cursors are enabled Display Mode Display Mode M1 Display Mode M2 M1 The position information of each cursor is attached to the cursor and the difference information is between the two cursors with arrows connected to the cursors This mode is more intuitive M2 The position information of each cursor and the difference between the cursors are displ...

Page 107: ...position on the display Y cursors reference Fixed Offset When the vertical scale is changed the value of Y cursors remain fixed Fixed Position When the vertical scale is changed the y cursors remain fixed to the grid position on the display Take X cursors reference as an example to demonstrate the scaling effect of different settings Timebase 50 ns div X1 50 ns 1div X2 100 ns 2div www com informat...

Page 108: ...ber of X cursors 1div 2div remains fixed The value of X1 and X2 are changed to 100 ns 200 ns Fixed delay timebase is changed to 100 ns div the value of X cursors 50 ns 100 ns remains fixed The grid number of X cursors are changed to 0 5 div 1 div www com information itm com 1 800 561 8187 ...

Page 109: ... in addition they can be selected in the cursors dialog box Gestures Directly touch the cursor and drag it as shown below Touch the display area of X or Y in M1 mode and drag it to move the two cursors simultaneously as shown in the figure below This is equivalent to the operation on the cursor type X1 X2 or Y1 Y2 www com information itm com 1 800 561 8187 ...

Page 110: ...features a strong automatic measurement list These parameters can be automatically measured without cursors and include common measurements such as rise time fall time peak peak and period The T3DSO2000A can also measure multiple channels at the same time showing up to 5 parameter measurements with statistics while in the M1 display mode and up to 12 parameters in the M2 mode If you wish to view m...

Page 111: ... disable measure B Set the mode of measure Simple or Advanced Simple shows the specified basic measurement parameters of the selected channel In Advanced mode the measurement parameters can be added one by one as needed C Select measurement parameters D Clear all the selected measurements E Turn on the trend plot of the selected measurement F Set the display mode In M1 mode items and statistics ar...

Page 112: ...neous and CH Delay Touch a tab and in the area will display the corresponding parameters C Parameters Touch the parameter to be measured to activate it and touch it again to close the parameter D Background highlighted parameters represent it is activated In the figure above Pk Pk and ROV are activated E Description of the last selected parameter The correct steps to add a measurement parameter ar...

Page 113: ...B C2 Skew Once a parameter is selected it will appear in the parameter and statistical display area below the grid Touch in the blank area to add a parameter Touch in the upper right corner of each parameter to close the parameter Touch in the upper right corner of the area to close measurement Touch Clear in the dialog box to close all parameters The Favorite tab is used to store frequently used ...

Page 114: ...To remove Period from the Favorite tab Advanced Type Favorite Period Delete from favorite 18 3 Type of Measurement 18 3 1 Vertical Measurement Vertical measurement includes 19 parameters www com information itm com 1 800 561 8187 ...

Page 115: ...rage of data values Cycle Mean Average of data values in the first cycle Stdev Standard deviation of the data Cycle Stdev Standard deviation of the data in the first cycle RMS Root mean square of the data Cycle RMS Root mean square of the data in the first cycle Median Value at which 50 of the measurements are above and 50 are below Cycle Median Median of the first cycle Overshoot FOV Overshoot fo...

Page 116: ...edge Equal to 100 max top amplitude Preshoot RPRE Overshoot before a rising edge Equal to 100 base min amplitude L T Level measured at trigger position 18 3 2 Horizontal Measurement Horizontal measurement includes 17 parameters www com information itm com 1 800 561 8187 ...

Page 117: ... Duty Cycle The ratio of negative width to period BWidth Time from the first rising edge to the last falling edge at the 50 crossing BWidth Time from the first falling edge to the last rising edge at the 50 crossing Delay Time from the trigger to the first transition at the 50 crossing T M Time from the trigger to each rising edge at the 50 crossing 10 90 Rise Duration of rising edge from 10 90 90...

Page 118: ...ay measurement measures the time difference between two channels It includes 10 delay parameters Phase Phase difference between two edges FRFR The time between the first rising edge of source A and the following first rising edge of source B at the 50 crossing FRFF The time between the first rising edge of source A and the following first falling edge of source B at the 50 crossing FFFR The time b...

Page 119: ...g edge of source B at the 50 crossing Skew Time of source A edge minus time of nearest source B edge 18 4 Trend After adding a measurement parameter Trend can be used to observe the change of the selected measurement value over time A Measurement parameter display area B Trend plot display area C Extend the range of time Touch it to expand the time range D Current value E Maximum value G Average v...

Page 120: ...at a time When statistics are enabled they are listed under the measurement items Touch a column to add or replace a measurement In M2 mode up to 12 parameter measurements are displayed at a time When statistics are enabled they are distributed on the right side of the measurement item Touch a row to add or replace a measurement www com information itm com 1 800 561 8187 ...

Page 121: ...ch the symbol in the statistics display area to clear and restart statistics 18 7 Statistics Histogram After enabling statistics on a selected measurement you can also activate a statistical histogram The histogram appears at the bottom of the statistics area This enables users to quickly view the probability distribution of the measured parameters The color of the histogram is consistent with the...

Page 122: ...imum value and the probability of a value falling into it F Close the enlarged histogram 18 8 Simple Measurements Enabling Simple Measurement displays all selected measurement parameters of the specified channel at the same time The font color of the measurement parameters is consistent with the color of the specified source Yellow for Channel 1 Purple for Channel 2 etc www com information itm com...

Page 123: ...he setting of gate cursors is similar to that of ordinary cursors See Select and Move Cursors for details The figure below shows a scenario in which the gate function is used to measure the peak peak parameter of the trough of an amplitude modulated waveform 19 Math 19 1 Overview The T3DSO2000A supports 2 math traces and multiple operators Addition subtraction multiplication x division differentia...

Page 124: ... operation E Set the label text of the math trace F Set the vertical position of the math operation The vertical scale and position of the math can also be set by using the knob G Enable Disable invert that is similar to the process used in Vertical Setup Units for Math Waveform Different operations have different dimensions Therefore the specific units displayed in Scale depend on the operation w...

Page 125: ... arithmetic operations including addition subtraction multiplication or division on any two analog input channels The values of Source A and Source B are computed point by point The following figure shows an example of F1 C1 C2 www com information itm com 1 800 561 8187 ...

Page 126: ... a stable way when using average mode 19 2 2 ERES The oscilloscope filters the sample which rejects noise in the high frequency domain so the signal to noise ratio SNR is improved As a result the effective number of bits ENOB of the oscilloscope is enhanced ERES operation does not require the signal to be periodic or repetitive nor does it require stable triggering but due to the digital filtering...

Page 127: ... is Where d Differential result y Values of source data i Data point index dx Differential interval The range of dx in the d dt menu is 2 20 The measurement units are point and the corresponding time difference range is 0 02 0 20 div div indicates the number of the pixel points that each division has and is 100 for the T3DSO2000A If dx 10 points the time difference is 0 01 10 0 1 div Then the diff...

Page 128: ...nal or even small offset errors of the oscilloscope itself may cause the integral output waveform to ramp up or down as shown below Integral without Offset Integral with Offset In addition the integral operation can be performed within a specified gate Touch Gate area in the math dialog box and enable Gate function then set Gate A and Gate B to define the gate The setting of the gate cursors is si...

Page 129: ...ncy Analysis The result of FFT Fast Fourier Transform calculations is the frequency spectrum of the source signal The horizontal axis of the FFT display is labeled using frequency Hz units instead of time seconds In addition the vertical axis provides the option of logarithmic scaling dBVrms dBArms or dBm In this mode the oscilloscope display is very similar to a spectrum analyzer www com informat...

Page 130: ...le rate in the time domain When N is greater than 2 Mpts FFT first decimates N by D and then takes the first 2 Mpts for the calculation In this case the FFT sample rate sample rate in time domain D For example in the case of sample rate in the time domain is 1 GSa s and the number of samples is 10 Mpts the FFT first decimates the samples by 4 to 2 5 Mpts and then takes the first 2 Mpts to calculat...

Page 131: ...e FFT mode Normal Average and Max Hold F Set the average count in average mode G Reset average H Return to previous menu Windows Spectral leakage in FFTs can be considerably decreased when a window is used The T3DSO2000A provides five windows that have different characteristics and are applicable to different scenarios For example for a two tone signal with a very close frequency interval it is su...

Page 132: ...hin the lower half of the display In Split mode if Zoom is enabled the zoomed waveform and the frequency domain waveform are displayed on the lower half screen together Full Screen Time domain waveform and frequency domain waveform are displayed together Exclusive Only the frequency domain waveform is displayed Split Mode Zoom off Split Mode Zoom on Full Screen Mode Exclusive Mode www com informat...

Page 133: ...cope will automatically calculate the dBm value based on the Ext Load value set in area C Set the external load which is used to calculate the correct dBm result D Return to previous menu E Set the center frequency and horizontal scale Unit The unit of the vertical axis can be set to dBm dBVrms or Vrms dBVrms and Vrms respectively using either logarithmic or linear scaling dBVrms is recommended to...

Page 134: ...atically search the qualified harmonics and users can control the position of each marker Up to 8 markers are supported Touch Tools in the math dialog box to recall the FFT tools dialog box When the FFT tool type is set to peaks the dialog box is as follows A Turn on or off the table Turn on the table the peaks searched with the limit of Search Threshold and Search Excursion will be displayed in t...

Page 135: ...f the frequency display F Turn on or off the delta display G Set the search threshold Only peaks larger than the peak limit can be judged as peaks H Set the difference between the peak value and the minimum amplitude on both sides The difference should be greater than the search excursion which can be determined as the peak I Return to previous menu Note The FFT dialog box is longer than the displ...

Page 136: ...ire measurement of the DC component it is recommended to set the coupling mode of the source channel to AC 19 5 Formula Editor Touch Formula Editor in the operation setting page to recall the editor A Formula display text box B Text box operation area which can clear and modify the entered formula C Special operators D Operation source E Keyboard area which contains the basic arithmetic operators ...

Page 137: ...ence locations REFA REFB REFC REFD in the built in non volatile memory The saved reference waveform can be recalled to be compared with the current waveform A Channel waveform B Reference waveform C Reference vertical and horizontal information display area www com information itm com 1 800 561 8187 ...

Page 138: ...ce Waveform Set the vertical position of the reference waveform by the offset knob shared by Decode Digital Math and Ref on the front panel and set the vertical scale of the reference waveform by the scale knob 21 Search The T3DSO2000A can search for the specified events in a frame The location of the qualifying events are indicated by white triangle indicators along the top of the display In YT m...

Page 139: ...dialog box hidden in this example In the stop state the area shows the index of the current event total number of events The current event is the one in the center of the display Press the Search button on the front panel or touch the menu Analysis Search to recall the search dialog box and turn on it www com information itm com 1 800 561 8187 ...

Page 140: ...he current trigger settings to the search settings Copy to Trigger Synchronize the current search settings to the trigger settings Cancel Copy Cancel the last synchronization and restore the settings before it Note When performing a copy from trigger if the trigger type is not supported by search the operation is invalid Setup Menu Select and set the search type in the Setup Menu The T3DSO2000A pr...

Page 141: ...re supported Low Speed Medium Speed and High Speed Navigate by Search Event When the Search function is turned on and the acquisition is stopped Navigate is usable to find search events see the chapter Search for search function Touch Type in the navigate dialog box to select the navigate type as Search Event Touch Event Num to set the event number by the universal knob or the virtual keypad Press...

Page 142: ... set the frame number by the universal knob or the virtual keypad Press the navigation buttons on the front panel to play backward stop or play forward Touch Playing Mode to set the search event playing mode Touch Interval Time to set the playing interval by the universal knob or the virtual keypad Touch Stop On Search Event to set the stop play condition stop when the event is searched This setti...

Page 143: ...de First set the trigger type to Runt to trigger on the dwarf pulse See the section Runt Trigger for details Then turn on the Search function and operate Copy from Trigger in the search dialog box so that the oscilloscope searches for the dwarf pulses according to the same setting as the trigger Set the horizontal scale to 10 ms div then 9 markers with 10 ms interval are shown on the display indic...

Page 144: ...at the same time Press the Run Stop button on the front panel to stop the acquisition and then follow the steps Navigate Type to select Search Event The following figure shows the first dwarf pulse In this example the list is enabled and time labels of each event are shown in the list www com information itm com 1 800 561 8187 ...

Page 145: ...g the rule is defined as a failure and a pulse can be generated from the Aux Out port on the back panel This is very useful to find and quantify anomalies in production tests or similar batch measurements When Pass Fail is enabled the signal output from the Aux Out is automatically switched to Pass Fail pulse www com information itm com 1 800 561 8187 ...

Page 146: ...p the test immediately and the counters in the information display area will stop Turn on the operation again re starts the test and all the counters are cleared Pressing the Clear Sweeps button on the front panel is equivalent F Turn on off the information display G Turn on off Stop on Fail When it is on the oscilloscope stops the acquisition once it detects a failure H Turn on off Failure to His...

Page 147: ...loaded D Load the mask from the location specified at C E Return to previous menu 23 2 1 Create Mask The mask can be created based on an existed waveform trace A Set the spacing of the mask to the trace in horizontal with the unit of division B Set the spacing of the mask to the trace in vertical with the unit of division C Create the mask based on settings in A and B D Specify the location of the...

Page 148: ...nd vertical adjustment range is 0 08 4 00 div X 0 2 div Y 0 2 div X 1 div Y 1 div Saving and recalling mask files msk is similar to the operation of setup files see the chapter Save Recall for details 23 2 2 Mask Editor The Mask Editor is a built in tool that provides an approach to create custom masks Below is its layout www com information itm com 1 800 561 8187 ...

Page 149: ...ile menu includes ordinary file operations such as New Create a new mask file Open Open an existed mask file Save Save the current mask file Exit Exit the Mask Editor tool Note The mask file created by the Create Mask cannot be recalled by the Mask Editor The contents of the Edit menu are equivalent to the Toolbar Toolbar Draw Creates vertices of a polygon by touching the display or entering value...

Page 150: ...st Even a single point outside the mask will cause a failure All Out All data points must be outside the mask to pass the test Even a single point inside the mask will cause a failure Any In Any data point inside the mask will be recognized as a pass All data points outside the mask will cause a failure Any Out Any data point outside the mask will be recognized as a pass All data points inside the...

Page 151: ...rn on or off statistics F Clear and restart the statistics Pressing the Clear Sweeps button on the front panel has an equivalent effect Mode See section Mode for details Statistics When statistics are enabled the counter will increment the data and display the statistics results on the screen Value The latest count Mean The average of all historical counts Min The minimum of all historical counts ...

Page 152: ...e is turned on the counter can count only when the gate source meets the specified conditions Touch Gate Setting to recall the gate setting dialog box A Turn on or off the gate B Select the gate type Level or After Edge C Gate source display area C1 and C2 are gate sources of each other C3 and C4 are gate sources of each other D When the gate type is level set the polarity Positive or Negative of ...

Page 153: ...nable Disable the test B Select the analysis item Power Quality Current Harmonics Inrush Current Switching Loss Slew Rate Modulation Turn On Turn Off Transient Response PSRR Power Efficiency Output Ripple etc C Turn on off the state of the analysis item 25 2 Power Quality The specific measurement parameters of power quality analysis include active power apparent power reactive power power factor p...

Page 154: ...rent crest current effective value and current crest factor Irms I_Crest Ipeak Irms Signal Settings Touch Signal to recall signal settings dialog box A Set the input voltage source B Set the input current source C Set the periods displayed D View the connection guide E Return to the previous menu Connection Guide Touch Signal Connection Guide to recall the connection guide of power quality as show...

Page 155: ...d IEC 61000 3 2 is an international standard that limits mains voltage distortion by prescribing the maximum value for harmonic currents from the second harmonic up to and including the 40th harmonic current There are 4 different classes in the EN 61000 3 2 that have different limit values Class A Balanced 3 phase equipment household appliances excluding equipment identified as class D tools exclu...

Page 156: ...s passed or failed according to the selected standard The rows in the table or the bars in the bar chart are rendered in different colors based on the pass fail state When the value is greater than 85 of the limit but less than 100 of the limit it is defined as a critical state Total Harmonic Distortion THD where Xn is the nth harmonic and X1 is the basic component 25 4 Inrush Current A large curr...

Page 157: ...e current is close to zero This is a typical oscilloscope dynamic range limitation when trying to measure weak voltage and or current in the presence of relatively large switching voltage and or current To correct the skew between the oscilloscope channels or probes the deskew procedure should be performed once initially and re run when any part of the hardware setup changes for example a differen...

Page 158: ...put switch This value is a percentage of the maximum switching voltage Adjusting the value to ignore background noise This value is used to determine the threshold hysteresis of the switch edge B Set the current reference i e the switch level at the beginning of the input switch edge This value is the percentage of the maximum switching current This value can be adjusted to ignore background noise...

Page 159: ... area where the voltage level is lower than the voltage reference adjustable the power calculation formula is P Vce sat I In the off area where the current level is lower than the current reference adjustable the power calculation formula is P 0 watt Connection Guide Touch Signal Connection Guide to recall the connection guide of switching loss as shown in the figure below Please follow the instru...

Page 160: ...tion analysis measures the control pulse signal of the switching device MOSFET and observes the pulse width duty period frequency and other trends of the control pulse signal in response to different events Connection Guide Touch Signal Connection Guide to recall the connection guide of modulation as shown in the figure below Please follow the instructions in this figure for connection Touch the i...

Page 161: ...0 of its steady state output Turn off analysis determines the time taken for the power supply to fall to 10 of its maximum output voltage Signal Settings Touch Signal to recall signal settings dialog box A Set the input voltage source B Set the output voltage source C Set the input type AC or DC D Set the duration the range is 5 ns 20 s The oscilloscope will set the timebase according to the value...

Page 162: ...ed after a power supply has been turned off and has fallen to a certain percentage of its maximum output voltage The turning off time is between T2 and T1 where T1 When the input voltage finally falls to a certain percentage usually 10 of its maximum amplitude T2 When the output DC voltage finally falls to a certain percentage usually 10 of its maximum amplitude Connection Guide Touch Signal Conne...

Page 163: ... Set the overshoot percentage of output voltage which can be used to determine the stable band value of transient response and adjust the vertical scale of the oscilloscope F View the connection guide G Return to previous menu Configuration Touch Config to recall configuration dialog box A Set the input low current value This is the expected low current value before or after the load change B Set ...

Page 164: ...nsmitted to the voltage regulator Measure the AC RMS ratio of input to output and plot the relationship between the ratio and frequency The background noise of the oscilloscope is higher than that of the network analyzer and the sensitivity is lower than that of the network analyzer so the PSRR measured by the oscilloscope is difficult to exceed 60 dB The PSRR test is generally acceptable for samp...

Page 165: ...power supply under test The configuration of PSRR is the same as that of the bode plot see the chapter Bode Plot for details Connection Guide Touch Signal Connection Guide to recall the connection guide of PSRR as shown in the figure below Please follow the instructions in this figure for connection Touch the icon on the top right of the guide to close 25 12 Power Efficiency Power efficiency analy...

Page 166: ...alysis is complete you can move the markers on the chart to see the gain and phase values measured at each frequency point You can also adjust the scale and offset settings for the amplitude and phase plots Touch Analysis Bode Plot to recall the bode plot dialog box A Turn on off the bode plot B Configure the bode plot DUT AWG connection sweep parameters C Turn on off the operation D Set display p...

Page 167: ...enerator connection settings Touch Interface to select the connection type When selecting LAN it needs to Set IP and Save it Touch Test to confirm whether the arbitrary waveform generator is connected correctly 26 2 2 Sweep Touch Sweep Type to select the sweep type There are two types Simple and variable level A Set the sweep type to simple B Set the sweep frequency The frequency mode can be linea...

Page 168: ... reference level and load need to be set G Set the load A Set the sweep type to Vari Level B Select a profile Up to 4 profiles can be edited C Set the frequency mode D Set the number of sweep points E Set the offset of the sweep signal F Set the signal amplitude unit When it is set to dB reference level and load need to be set G Variable level signal display area H Touch Edit to turn on the profil...

Page 169: ...f the corresponding node Touch to activate the cell adjust the value through the universal knob or touch the cell again to call up the virtual keypad 26 3 Display Bode plot display settings include amplitude phase cursors and trace visibility Amplitude Set the amplitude coordinate axis of the bode plot Touch Display Amplitude to recall the amplitude setting dialog box www com information itm com 1...

Page 170: ...loscope automatically sets the scale and reference level F Return to the previous menu Phase Set the phase coordinate axis of the bode plot Touch Display Phase to recall the phase setting dialog box A Set the scale of the phase coordinate axis B Set the reference level the max value of the phase coordinate axis C Set the phase unit Degree or Rad D Auto Set According to the output signal phase curv...

Page 171: ...nning curves to observe the details of specific curves Touch Display Trace Visibility to recall the setting dialog box 26 4 Data Analysis With the data list cursor measurement and automatic measurement functions the bode plot curve can be analyzed in detail The data list provides the information of each scanning point The cursors can be used to flexibly measure the change of each position of the c...

Page 172: ... off the data list B Set the selected row in the list Adjust the universal knob to set or directly touch the list display area to select a specific line C Set the data source D Save Recall the data Saving and recalling bode plot data csv is similar to the operation of setup files see the chapter Save Recall for details E Return to previous menu Measure Touch Measure to recall the measure setting d...

Page 173: ... Clear the current measurement F Close the measurement configuration window For example to add UF measurements for C2 and GM measurements for C3 follow the steps below Measure Position Source UF Measure Position Source GM 27 Display Display settings include display type of waveform color persistence grid type trace brightness graticule brightness etc Press the Display Persist button or touch the m...

Page 174: ...le brightness 0 100 J Set the LED light 30 100 Display Type There is no difference between the vector and dot display types when the number of samples of a frame is greater than 1000 When the sample number is below 1000 there are some differences Vectors The samples are connected by lines i e interpolated and displayed The interpolation methods include linear interpolation and sin x x interpolatio...

Page 175: ...lent sampling Stop the acquisition to view the original samples of each frame separately Dots display in Run state Color Grade Color grade uses color temperature to map the probability of the waveforms The greater the probability that the waveform appears in a pixel the warmer the color of the pixel The smaller the probability the colder the color temperature of that pixel The picture below shows ...

Page 176: ...cquisitions are displayed with reduced intensity New acquisitions are shown in their normal color with normal intensity In combination with the T3DSO2000A s high waveform update rate and persist function in some cases anomalies in the waveform can be found in a short time without complex trigger settings to improve test efficiency Below is an example to display glitches in a data sequence with an ...

Page 177: ... persist time 1s 5s 10s 30s Choose different persist times The oscilloscope updates with the newly acquired waveform display Acquired waveforms will be cleared after the corresponding time has expired Infinite Select Infinite previous acquisitions will never be erased until a Clear Display or Clear Sweeps operation is performed Set Grid M1 Display 8 10 grid M2 Display 2 2 grid M3 Display without g...

Page 178: ...T3DSO2000A Manual Page 174 M2 Display 2 2 grid M3 Display without grid www com information itm com 1 800 561 8187 ...

Page 179: ...o recall the AWG dialog box A Turn on off the output of AWG B Select the waveform type Sine Square Ramp Pulse Noise DC and Arb C Set the frequency D Set the amplitude E Set the offset F Other AWG settings output load overvoltage protection and so on 28 2 Output For safety pressing the Wave Gen button does not automatically turn on the output of AWG To turn on the output touch Output in the AWG dia...

Page 180: ...n the pop up window There are 6 tabs in the window Under each tab a catalog of waveforms are listed Built in waveforms are stored in Common Math Engine Window and Trigo Stored waveforms are located in the Stored menu Users can edit arbitrary waveforms using our EasyWave PC software and send the stored waveforms to the instrument through the remote interface or import the stored waveforms through a...

Page 181: ...mode The object of the Zero Adjust is when AWG outputs 0V DC signal the measured mean value of the corresponding channel is within 1mV Auto Steps In this mode the adjustment can only be performed with CH1 of the oscilloscope Connect the output of AWG to CH1 of the oscilloscope press Auto and the AWG will start to automatically adjust The scope will display Zero adjust completed when the adjustment...

Page 182: ...o 1 No 10 Reference The reference waveform data are saved to external memory with the ref file extension The saved file contains the reference waveform data and its setup information such as the vertical scale vertical position and timebase BMP Saves the screenshot to external memory in bmp format JPG Saves the screenshot to external memory in jpg format PNG Saves the screenshot to external memory...

Page 183: ...tion will be recalled by pressing the Default button on the front panel The following table shows the relationship between the save types and save recall operations Save Recall only supports saving Reference to external memory However the reference waveform itself can be saved to internal memory See the chapter Reference for details 29 2 Internal Save and Recall Setup can be saved recalled to from...

Page 184: ...cation index selected in the step D Recall oscilloscope setup from internal memory Follow the steps below A Select Mode as Recall B Select Type as Setup C Select Recall Path as Internal D Select No of internal storage locations 1 10 optional E Touch Recall to perform the recall operation 29 3 External Save and Recall Before performing an external save or recall make sure the USB storage device is ...

Page 185: ...manager Left window Displays a list of available drives and internal folders The selected folder has an icon with a blue background The triangle tag on the left of the folder indicates that the folder includes subfolder s Clicking the tag expands the folder to show the subfolder s in the left window Right window Displays the files and the subfolders contained in the selected folder www com informa...

Page 186: ...Dir Create a new folder under the current path Rename Rename the selected file or folder Delete Delete the selected file or folder Save Recall command bar Execute the Save Recall command Save As Save as the filename specified by the user Visible when the mode is Save Save Save as system default file name Visible when the mode is Save Recall Recall the specified file Visible when the mode is Recall...

Page 187: ...olor of the display Inverted saves images with a white background color for ink saving print Touch File Manager to open the file manager Third select the Udisk0 t3dso2000a directory in the file manager Fourth touch Save As click the pop up text box to recall the virtual keyboard and input the file name and then touch OK t3dso2000a www com information itm com 1 800 561 8187 ...

Page 188: ...hot to the U Disk Recall the setup file uart_decode xml stored in the path Udisk0 t3dso2000a First insert the U disk with the file uart_decode xml stored folder t3dso2000a Second set the parameters of the Recall operation Select Mode as Recall Select Type as Setup Select Recall Path as External Touch File Manager to open the file manager Third select the Udisk0 t3dso2000a directory in the file man...

Page 189: ...us System information includes the contents shown below 30 2 Sound Perform Utility System Setting Sound to enable or disable the audible buzzer Indicates the buzzer is on Indicates the buzzer is off 30 3 Upgrade Software The firmware is upgradeable through external USB memory devices U disk Make sure the U disk contains the correct upgrade file ads is connected to the oscilloscope before performin...

Page 190: ...t If the parse succeeds it will show the following dialog Users can choose Cancel to cancel the upgrade or Reboot to restart the oscilloscope immediately and continue the upgrade Otherwise the oscilloscope will restart automatically to finish the upgrade After the reboot check the version number in System Status Warning Do Not turn off the power during upgrading otherwise the oscilloscope may not ...

Page 191: ...fy the period before screen saver or select Off to disable the screen saver Any action from the mouse touch screen or front panel can disable the screen saver 30 6 I O Setting 30 6 1 LAN Operate the following steps to set the LAN port Perform Utility System Setting I O Setting LAN Config to open the LAN Config dialog box A Check Automatic DHCP to enable dynamic IP In this case the oscilloscope mus...

Page 192: ...Month and Year to edit these fields Touch the Modify button to perform the change 30 8 Install Options The T3DSO2000A provides a few options to enhance its functionality Contact your local Teledyne Test Tools sales representative or Teledyne Test Tools technical support to purchase the corresponding option key Then perform the following steps to install the option Go to Utility Options where all o...

Page 193: ... contracts around the center of the display Fixed Position When the timebase is changed the horizontal delay remains fixed to the grid position on the display As the horizontal timebase scale is changed the waveform expands contracts around the position of the horizontal display Vertical Ref Fixed Offset When the vertical scale is changed the vertical offset remains fixed As the vertical scale is ...

Page 194: ... Timebase 10 ns div Horizontal Delay 20 ns 2 div Fixed position timebase is changed to 5 ns div the grid number of delay 2 div remains fixed while the horizontal delay changes to 10 ns www com information itm com 1 800 561 8187 ...

Page 195: ...the oscilloscope has any electrical or mechanical problems on the user interface such as color distortion the sensitivity of buttons and knobs Screen Test The screen test is used to find out whether the oscilloscope display has serious color distortion bad pixels or screen scratches Perform Utility Do Self Test Screen Test and the oscilloscope will enter the screen test interface as shown below Th...

Page 196: ...rface Knob test Turn each knob clockwise counter clockwise and press down Observe whether the value on the corresponding knob default 0 on the screen increases or decreases in real time and whether the knob lights up when it is pressed Button test Press each button and check whether the corresponding button icon on the screen lights up in real time Press the Run Stop button three times to exit the...

Page 197: ... state and the most precise measurement It is recommended to perform a self calibration if the change of ambient temperature is more than 5 Note Make sure the oscilloscope has been warmed up or operated for more than 30 minutes before the self calibration Please do the self calibration as follows 1 Disconnect everything from all inputs 2 Operate Utility Do Self Cal and it will pop up the following...

Page 198: ...d for remote control in multiple ways 31 1 Web Browser A built in web server provides an approach to control the oscilloscope by a web browser It doesn t require any additional software to be installed on the controlling computer Set the LAN port correctly see section LAN for details input the IP address of the oscilloscope in the browser address bar and then the user can browse and control the os...

Page 199: ... a screenshot C Click here to save the waveform data as a binary bin file and download it to the local computer D Click here to download an executable program that converts binary waveform files bin format files to csv files E Click here to perform a firmware upgrade 31 2 Other Connectivity The T3DSO2000A also supports remote control of the instrument by sending SCPI commands via NI VISA Telnet or...

Page 200: ...is sampled but no waveform of the signal is displayed 1 Check whether the probe is correctly connected to the signal connecting wire 2 Check whether the signal connecting wire is correctly connected to the BNC namely channel connector 3 Check whether the probe is correctly connected to the item to be tested 4 Check whether there are signals generated from the item to be tested 5 Resample the signa...

Page 201: ...to Note Using AutoSetup could automatically finish the above setting 6 Touch screen does not respond to touch operation 1 Check whether the Touch button backlight on the front panel is lighted up If not the touch screen is not turned on Press the button to enable the touch screen 2 Restart the instrument 7 The USB storage device cannot be recognized 1 Check whether the USB storage device can work ...

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