I
User Manual
T3DSO2000A Series Digital Oscilloscope
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1 General Inspection
Please check the instrument according to the following steps.
1. Inspect the shipping container.
Keep the shipping container and packaging material until the contents of the shipment
have been completely checked and the instrument 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. 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. Check the accessories.
Please check that you have received the accessories: Calibration Kit, Utility Kit, Power
Cord, USB cable. If the accessories are incomplete or damaged, please contact
Teledyne LeCroy immediately.
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T3DSO2000A Manual. Page I
Safety Information
General Safety Summary
Read the following precautions carefully to avoid any personal injuries, or damage to
the instrument or products connected to it. Use the instrument only as specied.
Use only the power cord supplied for the instrument.
Ground the instrument. The instrument is grounded through the ground conductor of
the power cord. To avoid electric shock, always connect to grounded outlets. Make sure
the instrument is grounded correctly before connecting its input or output terminals.
Connect the signal wire correctly. To avoid damage, observe input polarity and
maximum voltage/current ratings at all times.
Observe all terminal ratings and signs on the instrument to avoid re or electric shock.
Before connecting to the instrument, 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 or
components when the power is on.
Do not operate without covers. Do not operate the instrument with covers or panels
removed.
Use only the fuse specied for the instrument.
Use proper over voltage protection.
Use anti-static protection. Operate in an anti-static protected area. Ground
measurement cable conductors before connecting to the instrument to discharge any
static electricity before connecting the cables to the instrument.
Observe ventilation requirements. Ensure good ventilation. Check the vent and fan
regularly to prevent overheating.
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T3DSO2000A Manual. Page II
Safety Terms and Symbols
The following terms may appear on the instrument:
DANGER: Direct injury or hazard may occur.
WARNING: Potential injury or hazard may occur.
CAUTION: Potential damage to instrument/property may occur .
The following symbols may appear on the instrument:
CAUTION
Risk of
injury or
damage.
Refer to
manual.
WARNING
Risk of
electric
shock or
burn
Earth
Ground
Terminal
Protective
Conductor
Terminal
Frame or
Chassis
Terminal
ON/
Standby
Power
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
Alternating
Current
Temperature: 10 °C to 40 °C
Relative Humidity: 85% RH up to 40 °C
Altitude: ≤ 3000 m
Use indoors only.
Pollution Degree 2. Use in an operating environment where normally only dry,
non-conductive pollution occurs. Temporary conductivity caused by condensation
should be expected.
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T3DSO2000A Manual. Page III
AC Power
Input Voltage & Frequency: 100-240 V at 50/60, 100-120 V at 400 Hz
Automatic AC selection.
Power Consumption: 80 Watts maximum, 50 Watts typical, 4 Watts standby
Mains Supply Connector: CAT II per IEC/EN 61010-1:2010, instrument
intended to be supplied from the building wiring at utilization points (socket
outlets and similar).
Fuse Type
2A / 250 V (’T’ rated), 5mm x 20mm
1 General Inspection
Please check the instrument according to the following steps.
1. Inspect the shipping container.
Keep the shipping container and packaging material until the contents of the shipment
have been completely checked and the instrument 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. 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. Check the accessories.
Please check that you have received the accessories: Calibration Kit, Utility Kit, Power
Cord, USB cable. If the accessories are incomplete or damaged, please contact
Teledyne LeCroy immediately.
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T3DSO2000A Manual. Page IV
Care
Do not store or leave the instrument in direct sunshine for extended periods of time.
Note: To avoid damage to the instrument, please do not leave it in a corrosive
atmosphere.
Cleaning
Regularly perform the following steps to clean the instrument.
1. Disconnect the instrument from all power sources, then clean it with a soft, damp
cloth.
2. Remove loose dust on the outside of the instrument with a soft cloth. When
cleaning the LCD, take care to avoid scratching it.
Note: To avoid damage to the surface of the instrument, 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 (WEEE) and Batteries.
The product is subject to disposal and recycling regulations
that vary by country and region. Many countries prohibit the
disposal of waste electronic equipment in standard waste
recepticles. For more information about proper disposal and
recycling of your Teledyne LeCroy product,
!
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T3DSO2000A Manual. Page V
Contents
Contents
CONTENTS ................................................................................................... 2
1 INTRODUCTION ....................................................................................... 9
1.1 CALIBRATION .......................................................................................... 9
2 FIRST STEPS ............................................................................................. 9
ELIVERY CHECKLIST ......................................................................... 9
2.1 D
UALITY ASSURANCE ......................................................................... 9
2.2 Q
3 DOCUMENT CONVENTIONS ................................................................. 10
4 GETTING STARTED ................................................................................ 10
OWER ON .......................................................................................... 10
4.1 P
5 SHUT DOWN .......................................................................................... 11
YSTEM STATUS ................................................................................. 11
5.1 S
NSTALL OPTIONS .............................................................................. 11
5.2 I
6 PROBE ..................................................................................................... 11
ROBE SAFETY ................................................................................... 11
6.1 P
ROBE COMPENSATION .................................................................... 12
6.2 P
7 QUICK START ......................................................................................... 13
RONT PANEL OVERVIEW ................................................................. 13
7.1 F
EAR PANEL OVERVIEW ................................................................... 14
7.2 R
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
VERVIEW ........................................................................................... 16
8.1 O
8.2 M
8.3 G
8.4 C
ENU BAR ............................................................................................. 17
RID AREA............................................................................................ 18
HANNEL DESCRIPTOR BOX ............................................................ 19
8.5 TIMEBASE AND TRIGGER DESCRIPTOR BOXES ............................. 20
IALOG BOX ........................................................................................ 22
8.6 D
OUCH GESTURES.............................................................................. 23
8.7 T
8.8 M
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OUSE AND KEYBOARD OPERATION .............................................. 25
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T3DSO2000A Manual. Page 2
8.9 CHOOSING THE LANGUAGE ........................................................... 25
9 FRONT PANEL ..................................................................................... 25
VERVIEW ........................................................................................ 25
9.1 O
ERTICAL CONTROL ....................................................................... 26
9.2 V
9.3 HORIZONTAL CONTROL .................................................................. 26
RIGGER CONTROL.......................................................................... 27
9.4 T
UN/STOP BUTTON ......................................................................... 27
9.5 R
UTO SETUP BUTTON ..................................................................... 27
9.6 A
9.7 COMMON FUNCTION ....................................................................... 28
URSORS CONTROL ....................................................................... 28
9.8 C
NIVERSAL KNOB ............................................................................ 28
9.9 U
9.10 O
10 MULTIPLE APPROACHES TO RECALL FUNCTIONS ...................... 29
10.1 M
10.2 D
10.3 S
11 QUICKLY CAPTURE THE SIGNAL .................................................... 31
12 VERTICAL SETUP ................................................................................31
12.1 T
12.2 C
13 DIGITAL CHANNELS .......................................................................... 36
13.1 OVERVIEW ...................................................................................... 36
13.2 E
13.3 D
14 HORIZONTAL AND ACQUISITION SETUP ........................................ 40
14.1 T
14.2 A
14.2.1 Overview ........................................................................................ 41
THER BUTTONS ............................................................................ 29
ENU BAR ........................................................................................ 29
ESCRIPTOR BOX ......................................................................... 30
HORTCUT BUTTON ON THE FRONT PANEL ............................. 30
URN ON/OFF A CHANNEL ........................................................... 31
HANNEL SETUP ........................................................................... 32
NABLE/DISABLE THE DIGITAL CHANNELS ................................ 37
IGITAL CHANNEL SETUP ............................................................ 38
IMEBASE SETUP .......................................................................... 40
CQUISITION SETUP ...................................................................... 41
14.2.2 Acquisition ..................................................................................... 43
14.2.3 Roll Mode....................................................................................... 44
14.2.4 Sequence ...................................................................................... 44
14.3 H
14.4 ZOOM ............................................................................................... 49
15 TRIGGER ............................................................................................. 51
15.1 O
15.2 T
15.3 TRIGGER LEVEL ............................................................................. 53
15.4 T
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ISTORY ......................................................................................... 47
VERVIEW ...................................................................................... 51
RIGGER SETUP ............................................................................ 51
RIGGER MODE ............................................................................. 54
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T3DSO2000A Manual. Page 3
15.5 T
15.5.1 Overview ......................................................................................... 54
15.5.2 Edge Trigger ...................................................................................... 55
15.5.3 Slope Trigger .................................................................................. 56
15.5.4 Pulse Trigger .................................................................................. 57
RIGGER TYPE ................................................................................ 54
15.5.5 Video Tr
15.5.6 Window Trigger................................................................................ 62
15.5.7 Interval Trigger ................................................................................ 63
15.5.8 Dropout Trigger ............................................................................... 64
15.5.9 Runt Trigger..................................................................................... 65
15.5.10 Pattern Trigger .............................................................................. 65
15.6 T
15.7 H
15.8 T
15.9 NOISE REJECT ................................................................................ 69
15.10 Z
16 SERIAL TRIGGER AND DECODE ....................................................... 74
16.1 O
16.2 I2C T
16.2.1 I2C Signal Settings ........................................................................ 76
16.2.2 I2C Trigger ...................................................................................... 77
16.2.3 I2C Serial Decode .......................................................................... 80
RIGGER SOURCE........................................................................... 67
OLDOFF .......................................................................................... 67
RIGGER COUPLING ....................................................................... 68
ONE TRIGGER .............................................................................. 70
VERVIEW ....................................................................................... 74
igger .................................................................................. 58
RIGGER AND SERIAL DECODE ............................................. 76
16.3 SPI T
16.3.1 SPI Signal Settings .......................................................................... 82
16.3.2 SPI Trigger ...................................................................................... 85
16.3.3 SPI Serial Decode ........................................................................... 85
16.4 UART T
16.4.1 UART Signal Settings ...................................................................... 85
16.4.2 UART Trigger .................................................................................. 86
16.4.3 UART Serial Decode ....................................................................... 86
16.5 CAN T
16.5.1 CAN Signal Settings ........................................................................ 87
16.5.2 CAN Trigger ..................................................................................... 87
16.5.3 CAN Serial Decode ......................................................................... 87
16.6 LIN T
16.6.1 LIN Signal Settings .......................................................................... 89
16.6.2 LIN Trigger ....................................................................................... 89
16.6.3 LIN Serial Decode ........................................................................... 89
RIGGER AND SERIAL DECODE ............................................. 82
RIGGER AND SERIAL DECODE ......................................... 85
RIGGER AND SERIAL DECODE ............................................ 87
RIGGER AND SERIAL DECODE............................................... 89
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T3DSO2000A Manual. Page 4
16.7 F
16.7.1 FlexRay Signal Settings .................................................................. 90
16.7.2 FlexRay Trigger ............................................................................... 91
16.7.3 FlexRay Serial Decode .................................................................... 91
LEXRAY TRIGGER AND SERIAL DECODE ................................... 90
16.8 CAN FD T
16.8.1 CAN FD Signal Settings .................................................................. 93
16.8.2 CAN FD Trigger ............................................................................... 93
16.8.3 CAN FD Serial Decode ................................................................... 94
16.9 I2S T
16.9.1 I2S Signal Settings .......................................................................... 95
16.9.2 I2S Trigger ....................................................................................... 96
16.9.3 I2S Serial Decode ........................................................................... 97
16.10 MIL-STD-1553B T
16.10.1 MIL-STD-1553B Signal Settings .................................................... 98
16.10.2 MIL-STD-1553B Serial Decode ..................................................... 98
17 CURSORS ............................................................................................ 99
17.1 O
17.2 S
18 MEASUREMENT ................................................................................. 106
18.1 O
18.2 S
VERVIEW ........................................................................................ 99
ELECT AND MOVE CURSORS ..................................................... 105
VERVIEW ...................................................................................... 106
ET PARAMETERS ......................................................................... 108
RIGGER AND SERIAL DECODE ...................................... 93
RIGGER AND SERIAL DECODE .............................................. 95
RIGGER AND SERIAL DECODE ....................... 98
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 D
18.6 M
18.7 STATISTICS HISTOGRAM .............................................................. 117
18.8 S
18.9 G
19 MATH .................................................................................................... 119
19.1 O
19.2 A
19.2.1 Average .......................................................................................... 122
19.2.2 ERES ............................................................................................. 122
19.3 A
ISPLAY MODE .............................................................................. 116
EASUREMENT STATISTICS ........................................................ 117
IMPLE MEASUREMENTS .............................................................. 118
ATE ................................................................................................ 119
VERVIEW ....................................................................................... 119
RITHMETIC..................................................................................... 121
LGEBRA ........................................................................................ 123
19.3.1 Dierential ..................................................................................... 123
19.3.2 Integral .......................................................................................... 124
19.3.3 Square Root ................................................................................... 125
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T3DSO2000A Manual. Page 5
19.4 F
REQUENCY ANALYSIS ................................................................ 125
19.5 F
20 REFERENCE ..................................................................................... 133
21 SEARCH ............................................................................................ 134
22 NAVIGATE ......................................................................................... 137
23 MASK TEST ....................................................................................... 141
23.1 O
23.2 M
23.2.1 Create Mask ................................................................................. 143
23.2.2 Mask Editor .................................................................................. 144
23.3 P
23.4 O
24 COUNTER .......................................................................................... 147
24.1 O
24.2 M
25 POWER ANALYSIS ........................................................................... 149
25.1 O
25.2 P
ORMULA EDITOR ........................................................................ 132
VERVIEW ..................................................................................... 141
ASK SETUP ................................................................................. 143
ASS/FAIL RULE ............................................................................ 146
PERATION ................................................................................... 146
VERVIEW ..................................................................................... 147
ODE .............................................................................................. 148
VERVIEW ..................................................................................... 149
OWER QUALITY .......................................................................... 149
25.3 C
25.4 I
25.5 S
25.6 SLEW RATE .................................................................................... 155
25.7 M
25.8 O
25.9 TURN ON/TURN OFF ..................................................................... 157
25.10 T
25.11 PSRR .............................................................................................160
25.12 P
26 BODE PLOT........................................................................................ 162
26.1 O
26.2 C
26.2.1 Connection ................................................................................... 163
26.2.2 Sweep .......................................................................................... 163
26.3 D
26.4 D
URRENT HARMONICS ................................................................ 151
NRUSH CURRENT ........................................................................ 152
WITCHING LOSS ......................................................................... 153
ODULATION ................................................................................. 156
UTPUT RIPPLE ............................................................................ 157
RANSIENT RESPONSE ............................................................. 159
OWER EFFICIENCY .................................................................. 161
VERVIEW ..................................................................................... 162
ONFIGURATION ........................................................................... 163
ISPLAY ......................................................................................... 165
ATA ANALYSIS ............................................................................ 167
27 DISPLAY ............................................................................................ 169
28 ARBITRARY WAVEFORM GENERATOR ......................................... 175
28.1 O
28.2 O
28.3 WAVE TYPE ................................................................................... 175
28.4 O
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VERVIEW ..................................................................................... 175
UTPUT .......................................................................................... 175
THER SETTING ........................................................................... 177
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T3DSO2000A Manual. Page 6
29 SAVE/RECALL .................................................................................... 178
29.1 S
29.2 INTERNAL SAVE AND RECALL ..................................................... 179
29.3 E
29.3.1 File manager ................................................................................. 181
29.3.2 External Save and Recall Instance ............................................... 182
30 SYSTEM SETTING .............................................................................. 185
30.1 S
30.2 S
30.3 U
30.4 LANGUAGE ..................................................................................... 187
30.5 S
30.6 I/O S
30.6.1 LAN ................................................................................................ 187
30.6.2 VNC Port ........................................................................................ 188
30.7 D
30.8 I
30.9 R
AVE TYPE ..................................................................................... 178
XTERNAL SAVE AND RECALL .................................................... 180
YSTEM STATUS ........................................................................... 185
OUND ............................................................................................. 185
PGRADE SOFTWARE .................................................................. 185
CREEN SAVER ............................................................................. 187
ETTING .................................................................................... 187
ATE/TIME ...................................................................................... 188
NSTALL OPTIONS .......................................................................... 188
EFERENCE POSITION SETTING ................................................ 189
30.10 P
30.11 DO SELF CAL ................................................................................ 193
30.12 D
30.13 P
30.14 DEBUG ........................................................................................... 194
31 REMOTE CONTROL .......................................................................... 194
31.1 W
31.2 OTHER CONNECTIVITY ................................................................. 195
32 TROUBLESHOOTING ........................................................................ 196
33 CONTACT ........................................................................................... 198
ERFORM SELF-TEST ................................................................. 191
EFAULT ....................................................................................... 194
OWER ON LINE .......................................................................... 194
EB BROWSER .............................................................................. 194
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T3DSO2000A Manual. Page 7
1 Introduction
This user manual includes important safety and installation information related to
the T3DSO2000A series oscilloscopes and includes simple tutorials for basic
operation of the oscilloscope.
The series includes the following
models:
Model
T3DSO2104A 100 MHz bandwidth, 4-channel, 2
T3DSO2204A 200 MHz bandwidth, 4-channel, 2
T3DSO2354A 350 MHz bandwidth, 4-channel, 2
T3DSO2502A 500 MHz bandwidth, 2-channel, 2
Analog Bandwidth
GSa/s Sample rate
GSa/s Sample rate
GSa/s Sample rate
GSa/s Sample rate
Calibration
The recommended calibration interval is one year. Calibration should only be
performed by qualied personnel.
2 First steps
2.1 Delivery Checklist
First, verify that all items listed on the packing list have been delivered. If you note 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 Test Tools can repair or replace
any product that is returned to the authorized service center during the warranty period.
We must rst examine the product to make sure that the defect is caused by the
process or material, not by abuse, negligence, accident, abnormal conditions or
operation. Teledyne Test Tools shall not be responsible for any defect, damage, or
failure caused by any of the following:
a) Attempted repairs or installations by personnel other than Teledyne Test Tools.
b) Connection to incompatible devices/incorrect connection.
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T3DSO2000A Manual. Page 9
c) The use of non-Teledyne Test Tools accessories or supplies. Furthermore,
Teledyne Test Tools shall not be obligated to service a product that has been
modied. Spare, replacement parts and repairs have a 90-day warranty.
The oscilloscope's rmware has been thoroughly tested and is presumed to be
functional. Nevertheless, it is supplied without warranty of any kind covering detailed
performance. Products not made by Teledyne Test Tools are covered solely by the
warranty of the original equipment manufacturer.
3 Document Conventions
For convenience, text surrounded by a box border is used to represent the button of
the front panel. For example, Print represents the "Print" button on the front panel.
Italicized text with shading is used to represent the touchable or clickable 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
on the screen as step 2, and click the Update option on the screen as step 3 to enter
the upgrade interface.
4 Getting Started
4.1 Power on
The T3DSO2000A provides two ways for power on, which are:
Power on Line
When the “Power on Line” option is enabled, once the oscilloscope is connected to
the AC power supply through the power cord, the oscilloscope boots automatically.
This is useful in automated or remote applications where physical access to the
instrument is dicult/impossible.
Steps for enabling the "Power on Line" function:
Utility＞Power On Line
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Manual Power on
When the "Power on Line” option is disabled, the power button on the front panel is the
only control for the power state of the oscilloscope.
5 Shut down
Press the power button to turn o the oscilloscope. Or follow the steps below:
Utility＞Shutdown
Note:
The Power button does not disconnect the oscilloscope from the AC power supply. The
only way to fully power down the instrument is to unplug the AC power cord from the
outlet. 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 Option" for
details.
6 Probe
The T3DSO2000A series oscilloscope package includes passive probes as standard
accessories.
6.1 Probe Safety
A guard around the probe body provides a finger barrier for protection from electric
shock.
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T3DSO2000A Manual. Page 11
Connect the probe to the oscilloscope and connect the ground terminal to ground before
you take any measurements.
Note:
To avoid electric shock when using the probe, keep fingers behind the guard on the probe
body.
To avoid electric shock while using the probe, do not touch metallic portions of the probe
head while it is connected to a voltage source. Connect the probe to the oscilloscope and
connect the ground terminal to ground before you take any measurements.
6.2 Probe Compensation
When a probe is used for the first time, you should compensate it to match the input
channel of the oscilloscope. Non-compensated 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 Terminal”
under the compensation signal output terminal.
3. Press the Auto Setup button.
4. Check the waveform displayed and compare it with the following.
Under
Compensated
Perfectly
Compensated
Over
Compensated
5. Use a non-metallic screwdriver to adjust the low-frequency compensation adjustment
hole on the probe until the waveform displayed is as the “Perfectly compensated” in the
gure above.
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T3DSO2000A Manual. Page 12
7 Quick Start
7.1 Front Panel Overview
A
B
C
EFGH
I
A. Touch Screen Display: The display and major functions area. See the "Touch Screen
Display" chapter for more details.
B. Front Panel: Includes knobs and buttons. See the chapter "Front Panel" for more
details.
D
I
C. WaveGen: Built-in waveform generator output.
D. Probe Compensation/ Ground 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 stands to tilt the
oscilloscope for stable positioning of the oscilloscope.
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T3DSO2000A Manual. Page 13
7.2 Rear Panel Overview
B
A
F
D
C
E
A. Auxiliary Out: Outputs the trigger indicator. When Pass / Fail is enabled, outputs 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
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T3DSO2000A Manual. Page 14
7.3 Connecting to External Devices/Systems
7.3.1 Power Supply
The standard power supply for the instrument is 100~240 V, 50/60 Hz or 100~120 V,
400 Hz. Please use the power cord provided with the instrument to connect it to AC
power.
7.3.2 LAN
Connect the LAN port to the network with a network cable with RJ45 head for remote
control.
Follow the steps below to set LAN connection:
Utility＞System Setting＞I/O＞LAN Cong
7.3.3 USB Peripherals
Connect a USB storage device (FAT32 format) to 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
specications and documents of the probe can be obtained at
7.3.6 Logic Probe
To connect the logic probe: Insert the probe, with the correct side facing up, until you
hear a “click”.
To remove the logic probe: Depress the buttons on each side of the probe, then pull it
out.
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T3DSO2000A Manual. Page 15
8 Touch Screen Display
8.1 Overview
The entire T3DSO2000A display is a capacitive touch screen. Use your fingers to touch,
drag, pinch, spread, or draw a selection box. Many controls that display information also
work as “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.
E
A
D
B
F
H
D
C
G
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
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Trigger Level Line (Vertical) and Trigger Delay Indicator (Horizontal) show the trigger
position of the waveform.
Cursors show where measurement points have been set. Move the cursors to quickly
reposition the measurement point.
Channel Descriptor boxes include analog channels (C1 - C4), digital channels (D), math
(F1 - F2) and reference (Ref). They are located under the grid area, showing the
parameters of the corresponding traces. Touching the boxes creates a dialog box.
Timebase and Trigger Descriptor boxes show the parameters of the 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 can enter most menus by using the front panel or parameter description
labels instead of the menu bar. However, the following operations can only be accessed
through the menu bar:
Utility >Help
Acquire >Sequence
Acquire >XY Mode
Analysis >Mask Test
Analysis >Bode Plot
Analysis >Power Analysis
Analysis >Counter
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8.3 Grid Area
The grid area displays the waveform traces. Traces can be moved by dragging and rescaled by pinch and spread. The area is divided into 8 (vertical) * 10 (horizontal) grids.
The best display eect can be obtained by adjusting the waveform intensity and
graticule. Follow the steps below to set 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 Oset Indicator with a channel number shows
the oset position of the corresponding channel.
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8.4 Channel Descriptor Box
A. Channel Index
B. Bandwidth Limit indicator
C. Coupling and Input Impedance
D. Vertical Scale
E. Vertical Offset
F. Probe Attenuation Factor
Bandwidth Limit Indicators:
The T3DSO2000A has two available bandwidth limits: 20 and 200 MHz. They are indicated
by the following icons:
：20 MHz bandwidth limit
：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 o
Coupling and Input Impedance:
：DC coupling, 1 MΩ impedance
：DC coupling, 50 Ω impedance
：AC coupling, 1 MΩ impedance
：AC coupling, 50 Ω impedance
：Ground
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Vertical Scale: The scale of each grid in the vertical direction. For example, when the vertical
scale is 1.00 V/div, the full scale of the oscilloscope is 1.00 V/div*8 div=8 V.
Vertical Oset: The offset of the channel in the vertical direction. When the vertical oset is
0, the channel oset indicator is located in the middle of the vertical axis.
Probe Attenuation Factor: Set the probe attenuation factor to match the actual attenuation of
the probe. The oscilloscope automatically calculates the vertical scale according to the probe
attenuation factor. For example, the vertical scale of the oscilloscope is 100mV/div with 1X
attenuation, and 1V/div if the attenuation factor is changed to 10X. When inserting a
standard 10X passive probe with a probe sense terminal, the oscilloscope will automatically
set 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 Rate
Trigger delay: The time oset of the trigger position. When the trigger delay is 0, the trigger
delay indicator is in the center of the horizontal axis of the grid area.
Horizontal scale: Timebase, the time of each grid in the horizontal direction. For example, if
the scale is 500 μs/div, the time of each grid is 500 μs, and the full-screen time range of the
oscilloscope is 500 μs/div*10 div = 5 ms.
# Samples: The number of sample points on the current screen.
Sample Rate: The current sample rate.
A. Trigger source
E. Trigger type
B. Trigger coupling
C. Trigger mode
D. Trigger level
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F. Trigger slope
Trigger source
• C1~C4: Analog channels
• EXT: External trigger channel
• EXT/5:5x attenuation of external trigger channel
• AC Line: AC mains supply
• D0~D15: Digital channels
Trigger coupling: Coupling mode of the current trigger source. It is only valid when the
trigger source is C1~C4, EXT or EXT/5.
• DC：All the signal’s frequency components are coupled to the trigger circuit for highfrequency bursts or where the use of AC coupling would shift the eective trigger level.
• AC：The signal is capacitively coupled. DC levels are rejected. See the datasheet for
details of the cut-o frequency.
• HFR：Signals are DC coupled to the trigger circuit, and a low-pass lter network
attenuates high frequencies (used for triggering on low frequencies). See the
datasheet for details of the cut-o frequency.
• LFR：The signal is coupled through a capacitive high-pass filter network, DC is
rejected and low frequencies are attenuated. For stable triggering on medium to highfrequency signals. See the datasheet for details of the cut-o 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. This is
helpful when first analyzing unknown signals. Otherwise, Auto functions the same as
Normal when a trigger condition is found.
• Normal: Sweeps only if the input signal meets the trigger condition. Otherwise, it
continues to display the last acquired waveform.
• Stop: Stops the acquisition and displays the last acquired waveform.
Trigger level: The source voltage level or levels that mark the threshold
fire. Trigger levels specified in Volts normally remain unchanged when the vertical gain or
oset is modified.
for the trigger to
Trigger type: See the chapter "Trigger" for details.
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8.6 Dialog Box
The dialog box on the right side of the screen is the main area for setting the parameters of
the selected function.
A. Title bar. Touching the bar can hide the dialog box, and
touching again can open the dialog box.
B. Parameter setting area.
C. Scroll bar. When parameters are more than the
displayed range, the blue scrollbar will be displayed. By
sliding the dialog area up and down, or rolling the mouse
wheel, it can scroll to the area not displayed.
To Set Parameters
The T3DSO2000A provides a couple of dierent 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
from the pop-up list.
Virtual Keypad: Sets parameters with a numerical value. Touch the
parameter region, and the parameter can be adjusted by the universal
knob on the front panel; touch the region again, then the virtual keypad
appears：
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T3DSO2000A Manual. Page 22
Let’s use the operation of setting the “deskew” of a channel as an example: If the
expected value is 65 ns, input “65” on the virtual keypad, and then choose the unit n to
complete the operation. On the virtual keypad, touching the button Max, Min, and Default
quickly set the parameter to its maximum, minimum and default values.
Hide Dialog Box
When the dialog box is opened, the grid area will be compressed horizontally to display
the complete waveform. After setting the parameters, in order to achieve the best
waveform display eect, 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 in the grid area.
Drag the waveform left and right to
move it on the horizontal axis
Pinch and spread the waveform
horizontally to re-scale the timebase
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T3DSO2000A Manual. Page 23
Drag the waveform up and down to
move it on the vertical axis
Touch and drag the cursor to move it Touch and drag the cursor information
Pinch and spread the waveform
vertically to re-scale the vertical gain
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
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T3DSO2000A Manual. Page 24
8.8 Mouse and Keyboard Operation
The T3DSO2000A user interface features mouse control as well as the touch screen. If
the oscilloscope is connected to a USB mouse, you can click on the object with the
mouse instead of touching the object. Similarly, if a USB keyboard is connected, you
can use the keyboard to input characters instead of using the virtual keyboard.
8.9 Choosing the Language
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 panel are multifunction. They can be pushed as well as
rotated. Pushing a knob quickly recalls a
specific function, which is indicated by the
silkscreen near to the knob.
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T3DSO2000A Manual. Page 25
9.2 Vertical Control
A. When a channel is disabled, push the channel button to
turn it on. When the channel is turned on but inactive,
push the button to activate it. When the channel is turned on
and activated, push the button to disable it.
A
B. Press the button to turn on the digital channel and open the
DIGITAL dialog box. Press again to turn off the digital
channels.
C. Press the button to turn on the math function and open the
MATH dialog box. Press again to turn o math function.
D. Press the button to turn on the reference function and
open the REFERENCE dialog box. Press again to turn o
the reference function.
E. Analog channels (C1-C4), digital channels (d), math (F1- F2)
and references (Ref) share the same vertical knob.
Rotate the knob to adjust the vertical 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.
B
F. Analog channels (C1-C4), digital channels (D), math (F1-F2) and references (Ref)
share the same oset knob. Rotate the knob to adjust the DC oset or vertical position
of the channel. Push to set the offset to zero. When the digital channel is active, rotate
the knob to change the position of the selected digital channel.
9.3 Horizontal Control
A. Rotate to adjust the horizontal scale (time/div). Push to enable Zoom.
Push again to exit Zoom mode.
B. Push to enable Zoom. Push again to exit Zoom mode.
C. Push to enable horizontal Roll. Push again to exit Roll mode.
timebase settings larger than 50 ms/div, it is recommended to set the
oscilloscope to Roll mode so that the waveform is displayed in real
time.
D. Rotate to adjust trigger delay. Push to set trigger delay to zero.
At
B
C
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9.4 Trigger Control
A. Opens the trigger setup dialog box
B. Auto mode: Triggers after a preset period if no valid trigger occurs
C. Single mode: Triggers once when all conditions are met
D. Normal mode: Triggers repeatedly when all conditions are met
E. Trigger level adjustment: Push to set the level to 50% of the waveform
F. Trigger 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 optimum waveform
display. You can also perform an Auto Setup operation following the steps
Trigger ->Auto Setup.
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T3DSO2000A Manual. Page 27
9.7 Common Function
A. Press the button to turn on the search function and open the SEARCH dialog box.
Press again to turn o the search function.
B. Press the button to turn on navigate function and open the NAVIGATE dialog box.
Press again to turn o the navigate function
C. Press the button to turn on history function and open the HISTORY dialog box.
Press again to turn o the search function.
D. Press the button to turn on serial bus decode function and open the DECODE dialog
box. Press again to turn o 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
dierent cursor.
9.9 Universal Knob
When the parameter setting area is highlighted, you can use the
Universal Knob to adjust or set the parameter. Press the knob to
select an option from the list. The default function of the Universal
Knob is to adjust the intensity of the waveform traces.
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T3DSO2000A Manual. Page 28
9.10 Other Buttons
Enables/Disables measurements and recalls the MEASURE dialog box.
Performs a screenshot save to an external storage device. The
supported format includes bmp \ jpg \ png.
Enables/Disables the touch screen. The LED on the button lights to
indicate that the touch screen is working.
Resets the oscilloscope to the default configuration.
Clears the displayed data and any measurements, including display
persistence, measurement statistics, average sweeps, and Pass/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 o
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 Functions
The oscilloscope can recall functions through dierent approaches.
10.1 Menu Bar
If you are familiar with common current computer programs, you may first choose to
access a function by the drop-down menu from the menu bar at the top of the
display.
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T3DSO2000A Manual. Page 29
For example, to open the trigger setup dialog box, you can follow the
steps below:
Trigger>Menu
The operations can be completed either by touch or by
mouse clicks.
10.2 Descriptor Box
For setup of channels, math, ref, timebase and trigger, there are dialog boxes at the
bottom of the display. For the introduction of the 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 trigger setup dialog box, press the Setup button in the
trigger control area on the front panel.
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T3DSO2000A Manual. Page 30
11 Quickly Capture the Signal
This is an example describing how to acquire a signal quickly. In this example, we
assume the signal is connected to channel 1 and other channels are disabled.
First, press the channel 1 button to turn on channel 1. The LED on the
button lights and the descriptor box of channel 1 is displayed at the
bottom of the screen.
Second, press the Auto Setup button. The oscilloscope will automatically
adjust the vertical scale, horizontal scale, and trigger level according to the
input signal to get the optimum waveform display.
Auto Setup will not work on all signal types, 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
descriptor box and a dialog box will appear on the display. Push the same button again
to disable the channel.
From the Touch Screen
Touch the + button and then select the expected channel to turn it on, and its channel
descriptor box and a dialog box will appear on the display. Touch the channel
descriptor box and then touch the Off button to disable it.
Turn on C1 Turn o C1
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12.2 Channel Setup
Touch the channel descriptor box, a quick dialog will pop up. Vertical scale and oset
can also be set from this dialog box.
A. Touch the region to set the vertical scale with the
universal knob or virtual keypad
B. ▲ to increase the vertical scale and ▼ to decrease
C. Check to coarsely adjust the vertical scale and
uncheck to enable fine adjustment
D. Touch the region to set the oset with universal
knob or virtual keypad
E. ▲ to increase the oset and ▼ to decrease
F. 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 vertical direction. The oscilloscope automatically switches to fine mode
when the vertical scale is altered by a touch gesture.
Activating a channel or touching in the quick dialog of the channel recalls the
channel dialog box, displaying more parameters, see next page.
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T3DSO2000A Manual. Page 32
A. Turn channel on/o
B. Coupling (DC, AC or GND)
C. Bandwidth limit (Full, 200 MHz or 20 MHz)
D. Probe attenuation (1X, 10X, 100X or custom)
E. Set the label text. Click to recall the label setting. Users can
customize the text and display of the label
F. Quickly apply a specified operation (Trigger, Cursor,
Measure, FFT, Search, Mask Test, Counter and AWG) to
current channel
G. Impedance: Select the input impedance
H. Units for the channel, Volts or Amps
I. Deskew one channel against another channel
J. Enable/disable invert
Coupling
• DC: All of the input signal frequency components are passed
to the display.
• AC: The signal is capacitively coupled. DC signal
components are rejected. See the Data sheet for details of
the cut-o frequency. AC coupling is suitable for observing
AC signals with DC oset, such as power ripple.
• GND: The channel is grounded by an internal switch. GND coupling is used to
observe the zero oset 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 high-frequency components can pass through. When the
frequency component of a signal is very low, better signal-to-noise ratios (SNR) can be
obtained by enabling one of the available bandwidth limits. The T3DSO2000A provides
two bandwidth limit options: 20 MHz and 200 MHz. The bandwidth limit eectively lowers
the input frequency response of the input to the selected limit value.
Probe Attenuation
The T3DSO2000A provides 1X, 10X, 100X and custom probe attenuation factor options.
The custom values can be between 10
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-6
to 10
6
.
T3DSO2000A Manual. Page 33
The oscilloscope will automatically convert the vertical scale according to the current
probe attenuation factor. For example, the vertical scale of the oscilloscope under 1X
attenuation is 100 mV/div, and the vertical scale will be automatically set to 1 V/div if the
probe attenuation is changed to 10X. If a standard probe with readout terminal is
connected, the oscilloscope will automatically set the probe attenuation to match the
probe.
Label
Users can set the label text for channels. Open the label setting dialog box to select the
source, customize the label text, and set the display. The source can be C1~C4, F1~F2,
and RefA~RefD. The length of the label is limited to 20 characters. The characters
beyond this length will not be displayed. When the “Display” option is set to “on”, the
label will be displayed on the right side of the channel oset 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 function menu and automatically
set that channel as the source.
Impedance
• 1 MΩ: When a passive probe with high impedance is connected, the impedance must
be set to 1 MΩ, otherwise the signal will not be detected.
• 50 Ω: Suitable for high-frequency signals transmitted through 50 Ω coaxial cables and
can minimize the amplitude distortion caused by impedance mismatching.
Unit
Set the vertical scale units to "V" or to "A”. When using a voltage probe, the units should
be set to "V". When using a current probe, the units should be set to "A".
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Deskew
Due to the skew between channels, cables or probes, the delay of signals passing
through dierent measurement paths may be inconsistent. For example, two coaxial
cables with a 1-inch dierence 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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13 Digital Channels
13.1 Overview
T3DSO2000-LS Probe
The T3DSO2000-LS is a logic probe designed to monitor up to 16 digital signals at once.
The 16 digital channels are separated into two groups and each group has its own
threshold, making it possible to simultaneously view data from dierent logic families.
!
The equipment shall be used only for the purposes specied 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. Excessive bending can damage the cable.
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Note: To avoid personal injury or damage to the logic probe and any associated
equipment, the following safety precautions should be noted.
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T3DSO2000A Manual. Page 36
Do not use equipment in humid or explosive environment.
Only used indoors. The T3DSO2000-LS is designed to be used indoors and should only
be operated in a clean, dry environment.
Do not use the equipment when you suspect a problem. Do not use the T3DSO2000-LS if
the T3DSO2000-LS or any parts are damaged. Maintenance work shall be performed
by maintenance personnel with appropriate qualifications.
Keep the product surface clean and dry.
T3DSO2000A-MSO Option
The software option adds the following functions 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
installation of the serial decode option.
13.2 Enable/Disable the Digital Channels
Turning on or o the digital channels is similar to analog channels. Digital data can be
stored as waveform les. Horizontal cursors and most of the horizontal measurements
also apply to digital waveforms.
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T3DSO2000A Manual. Page 37
A. Digital channel waveform display, which shares the same grid area with the analog
channels.
B. Digital channel descriptor box
C. Dialog box
D. Digital channel indicators. Up to 16 digital channels are organized in two groups with
dierent thresholds: D15~D8 and D7~D0. Every channel can be turned on or o
individually.
E. Labels can be set to data, address or custom characters.
From the Front Panel
Press the Digital button on the front panel to turn on digital channels and display the
waveforms. Press again to turn off.
From the Touch Screen
Click + at the bottom of the display and select the "Digital" to turn on; click the digital
channel descriptor box, and clicking O on the pop-up menu to turn o. 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 it. Decrease the height to provide
more adjustment area.
B. ▲ to increase position and ▼ to decrease the
channel location.
C. Reset the position to default value
D. The range in height of the digital channels display
area. You can use the universal knob or virtual
keypad to set it. If the display height covers all of
the available divisions, there will not be room to
adjust the position.
E. ▲ to increase and ▼ to decrease the number of
divisions occupied by the digital channels
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T3DSO2000A Manual. Page 38
F. Reset the height to default value
G. Turn o the digital channels
H. Open digital dialog box on the right side
Height=8div, Position=0div Height=4div, Position=1div
The quick menu only covers the height range and position of the digital channels display
area. More settings can be found in the dialog box.
A. Turn on/off the digital channels
B. Labels can be set to data, address or custom 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 level can be set in the Logic Setting.
The input voltage less than the threshold is recognized as a
'0', and the input voltage greater than the threshold is
recognized as a ‘1’.
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Input Signal
Sampling
Points
Digital Waveform
Threshold
The configurable logical level includes TTL, CMOS, LVCMOS 3.3V,
LVCMOS 2.5V and Custom.
The setting range of the custom threshold is -10.0V to + 10.0V.
14 Horizontal and Acquisition Setup
14.1 Timebase Setup
The timebase setup is used to adjust the scale and oset 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.
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A. Set the horizontal scale (timebase) by the virtual keypad
B. ▲ to increase and ▼ to decrease the horizontal scale
C. Set the trigger delay by the virtual keypad
D. ▲ to increase and ▼ to decrease the trigger delay
E. Set the trigger delay to zero
F. Set the trigger delay to the left part of the screen
G. Set the trigger delay to the right part of the screen
H. Open the Acquire dialog 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 dialog box
F. Select the vertical resolution. In 10 bits mode, the
bandwidth is limited to around 100 MHz
Acquisition: See the section " Acquisition" for details.
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Memory Depth: The maximum memory depth that can be supported. According to the
formula "acquisition time = sample points x sample interval", setting a larger memory
depth can achieve a higher sample rate for a given time base, but more samples require
more processing time, degrading the waveform update rate. With 200 Mpts memory
depth, the T3DSO2000A can still run at full sample rate (2 GSa/s) even when set to the 10
ms/div timebase.
Note: The memory depth here is the upper limit of the memory space allocated by the
oscilloscope. The actual sample points are related to the current timebase and may be
less than memory depth. The actual sample points information can be obtained in the
timebase descriptor 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
20k 10k
200k 100k
Dual-Channel Mode
2M 1M
20M 10M
200M 100M
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 -- At small timebase settings, the number of original points on the screen
may be less than the number display pixels in the grid area, so interpolation is necessary
to display a continuous waveform. For example, at 1 ns/div timebase and 2 GSa/s
sample rate, the number of original points is 20, but the grid area includes 1000
horizontal pixels. In this case, the oscilloscope needs to interpolate the original points by
50.
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• X: Linear interpolation, the simplest way of interpolation, connects two original points
with a straight line.
• Sinc: Sin(x)/x interpolation, the original point is interpolated according to the
Nyquist reconstruction formula, which has a good time-domain recovery eect
for sine wave. But for step signals/fast rise times, it will introduce false overshoot
due to the Gibbs phenomenon.
X Interpolation Sinc Interpolation
Acq mode -- "Fast" is the default setting. The T3DSO2000A provides a very high
waveform update rate in fast mode. "Slow" mode will slow down the waveform update on
purpose.
Resolution -- The vertical resolution. "8-bits" is the default setting. In "10-bits" mode, the
vertical resolution is 4x better, while the bandwidth is limited to about 100 MHz.
14.2.2 Acquisition
The acquisition mode is used 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 eect 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 eective to observe occasional narrow pulses or spurs
with a low sample rate, but the noise displayed is larger. In peak mode, the oscilloscope
will display all pulses with a pulse width longer than 400 ps.
In the following example, a narrow pulse sequence with a pulse width of 3.4 ns and a
period of 200 Hz is sampled at 2 MSa/s sample rate in normal mode and peak mode. As
we can see, because the sample interval (500 ns) is much larger than the pulse width
(3.4 ns), it is difficult to capture the narrow pulses in normal mode, but peak mode can
ensure that each pulse is captured.
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Normal mode
Peak mode
14.2.3 Roll Mode
Press the Roll button on the front panel to enter roll mode. In this mode, the waveform
moves across the screen from right to left, similar to a strip chart recorder. The
horizontal delay control of the waveform will be disabled when roll mode is active. It only
operates at timebase values of 50 ms/div and above.
If you would like to stop the display in Roll mode, press the Run/Stop button. To clear
the display and restart an acquisition 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, until the specied segments are acquired. As a result, the dead time
between trigger events is minimized, thus greatly improving the waveform update
rate. If sequence mode is enabled, the display will not update until all of the sequences
have been acquired.
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The T3DSO2000A can achieve a minimum 2μs trigger interval in Sequence mode,
corresponding to a waveform update rate of 500,000 wfm/s.
After the acquisition is nished, the oscilloscope will map all the segments together to
the screen. If you need to view and analyze each frame separately, history mode will
help (see the section " History" for details). History mode provides timestamp labels for
each segment.
In addition to minimizing the dead time, another advantage of Sequence mode is that
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 rise time of the
pulse is 2 ns, while the fall time is 100 ns. Pulse width is 108 ns, and amplitude is 1.6
Vpp. Press the AutoSetup button on the front panel.
Set the coupling mode of C1 to DC50Ω, and vertical scale to 500 mV/div, vertical
oset to 0. Set the trigger level to 0.
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In normal mode, 5 pulses can be obtained on the screen with the sample rate of 1 GSa/s
at the maximum memory depth.
Set the trigger mode to "Single", the timebase to 50 ns/div. Turn on the Sequence
mode, and set the segments to maximum (5,000 in this 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 that have been acquired.
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In the example, 5000 pulses can be obtained with the sample rate of 2 GSa/s at the
maximum memory depth.
14.3 History
Press the History button on the front panel
or touch Analysis>History to recall history
dialog 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.
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The oscilloscope automatically stores acquired frames. It can stores up to 90,000
frames but the number varies due to the channel memory depth and timebase
settings. Turn on history mode, then the stored frames can be recalled and measured.
Continuing with the example in the section above. In Sequence mode, all waveforms
that satisfy the trigger conditions are mapped to the display. If you need to observe a
single frame, you can use history mode.
To enable history mode, touch the Frame No. area 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 of the frame,
synchronized with the real-time clock of the oscilloscope; Delta T is the acquisition
time interval between adjacent two frames, it is shown as 50 ms in the following
diagram, which is consistent with the period of the actual waveform.
Acq Time label Delta T label
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In addition to manually specifying a frame, history mode supports autoplay.
Press the softkey to replay the waveform from the current frame to the rst.
Press the softkey to stop replay.
Press the softkey to replay the waveform from the current frame to the last.
Touch the Interval Time area to control the speed of automatic play. In the process of
automatic play, the list will automatically scroll to the current frame.
14.4 Zoom
The T3DSO2000A supports waveform zoom in the horizontal
direction. Press down the horizontal knob on the front panel to turn
on the zoom function.
When the Zoom function is on, the waveform 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 horizontal and vertical scale
knob. Rotating the horizontal and vertical position knob to move the position of the
region. When the main window is activated, the scale knobs and position knobs are
used to change the scale and delay/oset of the main window. The operations above
can also be performed by dierent gestures. Below is the example of changing the
setting on horizontal directions by gestures:
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Adjust the horizontal position of the zoom area by dragging left and right in the zoom
area of the main window or waveform in Zoom window
Adjust the horizontal 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
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15 Trigger
15.1 Overview
The oscilloscope only acquires waveforms of interest (i.e. the ones that satisfy the
trigger condition) and aligns all trigger events at the trigger position to form a stable
waveform display. The trigger is one of the most important features of an oscilloscope
since we can only analyze a signal that we are able to trigger in a reliable and stable
manner.
The trigger position is movable on the display. The following diagram shows the
structure of the acquisition memory. The acquisition memory is divided into pre-trigger
and post-trigger buers and the boundary between them is the trigger position. Before
the trigger event arrives, the oscilloscope fills the pre-trigger buer first, and then
continuously updates it in FIFO mode until the trigger event arrives. After the trigger
event, the data lls the post-trigger buer. When the post-trigger buer is full, an
acquisition is completed.
Below are the denitions 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 trigger event is detected and the oscilloscope starts to fill the post-trigger
buer.
Trigger settings should be based on the features of the input signal. For example, a
sine wave with a repeatable period can be triggered on the rising edge; for capturing
hazards in a combinational logic circuit, the pulse trigger can be se
some knowledge of the signal-under-test to quickly capture the desired waveform.
t. You need to have
15.2 Trigger Setup
Touch the trigger descriptor box to display the quick menu of trigger settings. The
trigger setup dialog box is displayed on the right side of the screen.
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A. Touch the level region and rotate the Level knob on the front panel to adjust trigger
level; touch the region again and the virtual keypad will be available
B. ▲ to increase and ▼ to decrease the trigger level
C. Set trigger level to the vertical center of the waveform
automatically
D. Set the trigger mode to "Auto", which is equivalent to
pressing the Auto button on the front panel
E. Set the trigger mode to "Single", which is 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 specic types)
D. Set holdo (None/Time/Events)
E. Set trigger coupling mode (DC/AC/LF Reject/HF Reject)
F. Enable/disable Noise Rejection. When Noise Reject is on,
the trigger hysteresis is increased, so the noise immunity
of the trigger circuit is better. As a compromise, the trigger
sensitivity degrades
G. Set the Zone trigger
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Trigger Related Label
Trigger level Indicator Horizontal 0 position
Indicator
Horizontal 0 position (out
of screen) Indicator
15.3 Trigger Level
Both analog and digital triggers must have a correct trigger level value. The
oscilloscope judges whether a waveform satisfies the trigger condition when it crosses
the trigger level, shown in the example as a yellow dashed horizontal line. If it does,
the crossing time is the trigger position, the blue dashed vertical line. In the following
figure, the trigger condition is set as to capture a rising edge. When the signal with
positive slope crosses the trigger level, the trigger condition is satised 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 yellow dashed lines are
shown here for illustration purposes only, the scope does not display these. There is
also a zero voltage level marker shown circled in red.
In some special trigger, the system will automatically set the trigger level, such as
using AC Line as the trigger source.
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15.4 Trigger Mode
The trigger mode determines how the oscilloscope acquires waveforms.
Auto：An internal timer triggers the sweep after a preset timeout period if no trigger has
been found, so that the oscilloscope continuously updates the display whether a trigger
happens or not. Auto mode is suitable for
unknown signals or DC signals.
Note: In Auto mode, if the signal satisfies the trigger conditions but cannot trigger the
oscilloscope stably, it may be that interval between two trigger events exceeds the
timeout period. Try Normal mode in this case.
Normal：Triggers and acquisitions only occur when the trigger conditions are met.
Otherwise, the oscilloscope holds the last waveform on the display and waits for the
next trigger. Normal mode is suitable for acquiring:
• Only events specied 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\o waveforms on a power rail
• Rare events
15.5 Trigger Type
15.5.1 Overview
The trigger modes of the T3DSO2000A are digital designs. Compared with analog
trigger circuits, digital triggers can not only greatly optimize trigger precision, trigger
jitter, but also support multiple trigger types and complex trigger conditions.
Edge-- Trigger on a rising edge, falling edge or both
Slope-- Trigger when an edge crosses two thresholds which lie inside or
outside a selected time range
Pulse--Trigger at the end of a pulse when the pulse width lies inside or
outside a selected time range
Video--TV trigger on falling edge
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Window--Trigger when the signal leaves the widow region.
Interval--Trigger on the second edge when the time between the edges is
inside or outside a selected time range
Dropout--Trigger when the signal disappears for longer than the Dropout
value.
Runt--Trigger when a pulse crosses the 1s
before re-crossing the 1st threshold again
Pattern-- Trigger when pattern condition transitions from false to true. All
inputs set to DC coupling
Serial--Trigger on specied condition in a serial bus. See the chapter
"Serial Trigger and Decode" for details.
t threshold but not the 2nd
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.
Rising Edge Falling
Edge
Trigger level
Possible
Trigger Points
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 the falling edge
Alter -- Trigger on both rising edge and falling edge
Holdo, coupling, and noise reject can be set in edge trigger, see the sections "Holdo",
" Trigger Coupling" and " Noise Reject" for details.
Note: Press the Auto Setup button, and the oscilloscope will set the trigger type to Edge.
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15.5.3 Slope Trigger
The slope trigger looks for a rising or falling transition from one level to another level
in the specified time range. For example, positive slope time is defined as the time
dierence between the two crossing points of trigger level lines A and B with the
positive edge as shown in the figure below.
Touch the Source area to select trigger source, and touch the Slope area to select
rising or falling.
Rising -- Only trigger on the positive slope
Falling -- Only trigger on the negative slope
Adjust Upper/Lower Level
The slope trigger requires upper and lower trigger levels. When
the trigger type is slope trigger, touch the trigger descriptor box,
the pop-up quick 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
level, and rotate it to set the value.
The lower level should always be less than or equal to the upper level. In the trigger
descriptor box, the lower level is displayed.
Set Limit Range
Touch the Limit Range area in the trigger dialog box to select the time condition and
set the corresponding time in the Upper Value/Lower Value area.
Less than a time value（≤）-- Trigger when the positive or negative slope time of the
input signal is lower than the specified time value.
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Great than a time value（≥）-- Trigger when the
positive or negative slope time of the input signal is
greater than the specified time value.
Within a range of time value（[--,--]）-- Trigger when
the positive or negative slope time of the input signal
is greater than the specified lower limit of time and
lower than the specified upper limit of time value.
Outside a range of time value（--][--）-- Trigger when
the positive or negative slope time of the input signal
is greater than the specified upper limit of time and
lower than the specified lower limit of time value.
Holdo, coupling, and noise reject can be set in slope
trigger, see the sections " Holdo", " Trigger Coupling"
and " Noise Reject" for details.
Positive Pulse Width
Trigger Level
Negative Pulse Width
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
Less than a time value（≤）-- Trigger when the positive or negative pulse time of the
input signal is lower than the specified time value. Below is an example of trigger
condition is set to positive pulse width < 100ns
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Greater than a time value（≥）--Trigger when the positive or negative pulse time of the
input signal is greater than the specified time value. Below is an example of trigger
condition is set to positive pulse width > 100ns
Within a range of time value（[--,--]）-- Trigger when the positive or negative pulse time
of the input signal is greater than the specified lower limit of time and lower than the
specied upper limit of the time value. Below is an example in which the trigger
condition is set to 100 ns＜positive pulse width＜300 ns.
Outside a range of time value（--][--）-- trigger when the positive or negative pulse
time of the input signal is greater than the specified upper limit of time and lower than
the specied lower limit of the time value.
Holdo, coupling, and noise reject can be set in pulse trigger, see the sections
"Holdo", "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 horizontal interval
of the waveform based on the video trigger settings you have selected. The
T3DSO2000A supports standard video signal for NTSC (National Television Standards
Committee), PAL (Phase Alternating Line), HDTV (High Definition Television) and a
custom video signal trigger.
Source, standard and synchronization mode can be set in the video trigger dialog box.
When the synchronization mode is "Select", line and field can be specied.
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Touch the Standard and select the video standard. The T3DSO2000A supports the
following video standards:
TV Standard
NTSC Interlaced Bi-level
PAL Interlaced Bi-level
HDTV 720P/50 Progressive Tri-level
HDTV 720P/60 Progressive Tri-level
HDTV 1080P/50 Progressive Tri-level
HDTV 1080P/60 Progressive Tri-level
HDTV 1080i/50 Interlaced Tri-level
HDTV 1080i/60 Interlaced Tri-level
Custom
Scan Type Sync Pulse
The table below shows the parameters of 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
Trigger Position Line Field
(Line Value) / 1 (1:1) 1
(Line Value) / 2 (2:1) 1, 2, 3, 4, 5, 6, 7, 8
(Line Value) / 4 (4:1) 1, 2, 3, 4, 5, 6, 7, 8
(Line Value) / 8 (8:1) 1, 2, 3, 4, 5, 6, 7, 8
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 eld can also be varied. If the "Of Lines"
is set to 800, the correct relationship between them is as follows:
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Of Lines Interlace Of Fields Trigger Line Trigger Field
800 1:1 1 800 1
800 2:1 1/2/4/8 400 1/1 - 2/1 - 4/1 - 8
800 4:1 1/2/4/8 200 1/1 - 2/1 - 4/1 - 8
800 8:1 1/2/4/8 100 1/1 - 2/1 - 4/1 - 8
Set the video trigger for video signal
Touch Sync for trigger mode selection, video trigger mode has "Any" and "Select"
options. In "Any" mode, the video signal can be triggered on any line that meets the
conditions. In "Select" mode, the signal can be triggered by a specied field and a
specified line
For progressive scanning signals (e.g. 720p/50, 720p/60, 1080p/50, 1080p/60), only
the specied line can be selected to trigger when the synchronization mode is “Select”.
For interlaced scanning signals (such as NTSC, PAL, 1080i/50, 1080i/60, Custom),
when the synchronization mode is "Select", the specified line and the specified field
can be selected to trigger.
The following table shows the corresponding relations between line and field for all
video standards (except for Custom)
Standard Field 1 Field 2
NTSC 1 to 263 1 to 262
PAL 1 to 313 1 to 312
HDTV 720P/50, 720P/60 1 to 750
HDTV 1080P/50, 1080P/60 1 to 1125
HDTV 1080i/50, 1080i/60 1 to 563 1 to 562
To gain familiarization with the video trigger, try these two examples:
• Trigger on a specic 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 greater than 1/2 grid. The example below sets to trigger on
Field 1, Line 22 using the NTSC video standard.
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1. Press the Setup button on the front panel to open the trigger menu.
2. In the trigger menu, touch Type, select "Video".
3. Touch the Source and select CH1 as the trigger source.
4. Touch the Standard and select the "NTSC".
5. Touch the Sync and select the "Select" to make the Field and Line optional, then
select "1" in the "Field", and set the "Line" to "22" by using the universal knob or
the virtual keypad.
Trigger on a Specific Line of Video(NTSC)
Use "Custom" to Trigger Video Signals
Custom video trigger supports video signals with frame 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 Custom Setting to open the custom setting menu, touch the Interlace
to select the required interlace ratio (assuming that the interlace ratio is 8:1).
Then set the frame rate, select the number of lines and the number of fields.
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T3DSO2000A Manual. Page 61
6. Touch the Sync to select the synchronization mode for the input signal:
a) Select the "Any" mode, and the signal can be triggered on any line that
meets the trigger condition.
b) Select the "Select" mode, then set the specified line and the specified field
to trigger the signal. Assuming that the "Field" is set to 8, you can select any
field from 1 to 8, and each field can choose any line from 1 to 100.
15.5.6 Window Trigger
Window trigger is similar to edge trigger, except that it provides an upper and a lower
trigger level. The instrument triggers when the input signal passes through the upper
level or the lower level.
There are two kinds of window types: Absolute and Relative. They have dierent trigger
level adjustment methods. Under the Absolute 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 on both rising and falling edges.
• If the upper trigger level is within the waveform amplitude range while the lower
trigger level is out of the waveform amplitude range, the oscilloscope will trigger on
the rising edge only.
• If the lower trigger level is within the waveform amplitude range while the upper
trigger level is out of the waveform amplitude range, the oscilloscope will trigger on
the falling edge only.
To set window trigger via the Absolute window type
Refer to "Adjust Upper/Lower Level" in the section " Slope Trigger".
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To set window trigger via the Relative window type
When the window trigger type is set to "Relative", touch the
trigger descriptor box. The pop-up menu will show two userdened parameters: “Level +/-Delta" and "Level Center".
The above two parameters can be set in the following two
ways:
1. Select the parameter in the Level +/-Delta area of the
quick menu, then set the parameter value by the virtual
keypad or the Level knob on the front panel. Setting the
center level is similar.
2. Directly use the Level knob on the front panel. Press the
knob to switch between “Level +/-Delta" and "Center
Level", and rotate it to set values.
Note: "Level +/-Delta” represents 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.
Holdo, coupling, and noise reject can be set in window trigger, see the sections
"Holdo", " Trigger Coupling" and " Noise Reject" for details.
15.5.7 Interval Trigger
Trigger when the time dierence between the neighboring rising or falling edges meets
the time limit condition.
When the trigger condition is set as an interval between two neighboring rising edges
and it is less than the set time value, the trigger diagram is as follows:
Trigger source, slope (rising, falling), limit range and time value can be set in the trigger
dialog box. Holdo, coupling, and noise reject can be set in the interval trigger, see the
sections " Holdo", " Trigger Coupling" and " Noise Reject" for details.
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15.5.8 Dropout Trigger
Dropout trigger includes two types: Edge and state.
Edge
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 rising edge (or
falling edge) passes through the trigger level is greater than the set time, as shown in
the figure 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. Holdo, coupling, and noise reject can be set in the dropout trigger,
see the sections " Holdo", " Trigger Coupling" and " Noise Reject" for details.
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15.5.9 Runt Trigger
Runt trigger looks for pulses that cross one threshold but not another as shown in the
figure below:
• A positive runt pulse across through the low level but not the high level.
• A negative runt pulse across through the high level but not the low level.
Holdo, coupling, and noise reject can be set in the dropout trigger, see the sections
"Holdo", " 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 are
set to "Don’t Care", the oscilloscope will not trigger.
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Logic (AND, OR, NAND, NOR), source, limit range, and time value can be set in the
trigger dialog box. When the logic is "OR" or "NAND", the setting of the time limit is
invalid.
Source Setting
Touch the Source Setting area to recall the following dialog box and set up for each
channel separately. Each channel can be set to "Low", "High" or "Don't Care". The
threshold can be determined 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.
Logic settings of analog channels Logic settings of digital channels
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.
Holdo can be set in pattern trigger, see the sections " Holdo" for details.
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15.6 Trigger Source
The trigger sources supported by each trigger type are dierent. See the table below for
details:
15.7 Holdo
Holdo is an additional condition for triggers and can be used to stabilize the triggering
of complex waveforms (such as a pulse series). It can be set to a time or number of
events.
Holdoff by Time
Holdo time is the amount of time that the oscilloscope waits before re-arming the trigger
circuitry. The oscilloscope will not trigger until the holdo time expires.
Use the holdo to trigger on repetitive waveforms that have multiple edges (or other
events) between waveform repetitions. You can also use holdo to trigger on the first
edge of a burst when you know the minimum time between bursts.
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For example, to achieve a stable trigger on the repetitive pulses shown in the figure
below set the holdo time (t) to 200 ns < t < 600 ns.
Holdoff by Event
The holdo event is the number of events that the oscilloscope counts before re-arming
the trigger circuitry. The oscilloscope will not trigger until the counter tracking holdo
events reaches the set value. In the following figure, the holdo event is set to 3, and the
signal is triggered on the fourth edge.
Parameter Start Holdo On denes the initial position of holdo
Acq Start-- The initial position of holdo is the rst time point satisfying the trigger
condition. In the example above, each holdo starts from the first rising edge of the
pulse sequence.
Last Trig Time--The initial position of holdo 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 holdo starts from that point.
15.8 Trigger Coupling
The coupling setting of a trigger is only valid when the trigger source is C1~C4, EXT or
EXT/5.
• DC: All of the signal’s frequency components are coupled to the trigger circuit for highfrequency bursts or where the use of AC coupling would shift the eective trigger level.
• AC: The signal is capacitively coupled. DC levels are rejected. See the datasheet for
details of the cut-o frequency.
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• HFR: Signals are DC coupled to the trigger circuit and a low-pass filter network
attenuates high frequencies (used for triggering on low frequencies). See the
datasheet for details of the cut-o frequency.
• LFR: The signal 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.
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.
Noise Reject O
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Noise Reject On
15.10 Zone Trigger
The T3DSO2000A includes a zone trigger to help isolate elusive glitches. There are two
user-defined areas: Zone1 and Zone2. Users can set the property of each zone as
“intersect” or “not intersect” as an additional condition to further isolate the interesting
event quickly. “Intersect” only includes events that occur within the zone. “Not-intersect”
events include all events that occur outside of the zone.
Touch Trigger>Zone to recall zone dialog box:
A. Turn on or o zone trigger
B. Select the source: C1~C4
C. Turn on or o 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 o zone2
G. Set the property of zone2: Intersect or Not intersect
H. Set the coordinate of zone2. The range is within the waveform
area
The zones can be created and moved by gestures or by setting
Zone>Zone Setting in the dialog box. The color of the zone’s outline
is consistent with the color of the specified source (Channel 1 =
Yellow, etc...).
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Gesture
When the zone trigger is turned on, touch-and-hold on any position within the waveform
area and draw a rectangular box, as shown in the following figure:
When the users finger moves o 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.
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Select C1 as the source, turn on zone1,
and set the property as "Intersect"
Select C1 as the source, turn on zone1,
and set the property as "Not Intersect"
Dialog Box
Touch Zone> Zone Setting to recall the dialog box.
A. Set the left border of the zone
B. Set the right border of the zone
C. Set the top border 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:
With a simple edge trigger, it is unlikely to trigger consistently on this anomaly.
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Thanks to the high waveform update rate of the T3DSO2000A, we can confirm
there is bus contention 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:
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Now, we can accurately capture the exact bus contention waveform:
16 Serial Trigger and Decode
16.1 Overview
The T3DSO2000A supports serial bus triggering and decoding on the following serial
bus protocols: I
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 setting
2C, SPI, UART, CAN, LIN, and also support optional FlexRay, CAN FD,
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Press the Decode button or touch the Analysis>Decode to turn on the serial decode
dialog box:
A. Set the list of decode result
B. Select the bus to set, Bus1 and Bus2
C. Turn on/o the bus
D. Set the bus display
E. Select the serial bus protocol
F. Touch to set the signal, including the mapping relation
between channels and bus signals, and the thresholds.
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 Trigger and Serial Decode
• CAN FD Trigger and Serial Decode
• I2S Trigger and Serial Decode
• MIL-STD-1553B Trigger and Serial Decode
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16.2 I2C Trigger and Serial Decode
This section covers triggering and decoding I2C signals. Please read the following for
more details: " I2C Signal Settings", " I2C Trigger" and " I2C Serial Decode".
16.2.1 I2C Signal Settings
Connect the serial data signal (SDA) and the serial clock signal (SCL) to the oscilloscope,
set the mapping relation between channels and signals and then set the threshold level of
each signal. The signal settings of decoding and triggering are independent. If you want to
synchronize the settings 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 only appears when adjusting the threshold level.
Copy Setting Touch the Copy Setting in the decode dialog box to synchronize the settings
between the trigger and decoding congurations.
A. Copy the decode settings to trigger
B. Copy the trigger settings to decode
C. Return to the previous menu.
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Note: The synchronization is not automatic. If the settings at one place change, a copy
operation is necessary to re-synchronize.
16.2.2 I2C Trigger
When the protocol is set to I2C, the following trigger conditions can be set: Start, Stop,
Restart, No Ack, EEPROM, or an R/W frame with specific device address and data
value.
Touch Trigger Setting in the I2C trigger dialog box
to select the trigger condition:
Start — The oscilloscope will be triggered when the
SDA line transitions from high to low while the SCL
is high.
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 an ACK
bit for the EEPROM. Set the data value and compare type according
to Data1 and Limit Range. If EEPROM’s data is greater than (less
than, equal to) Data1, the oscilloscope will be triggered at the edge
of ACK bit after the Data byte. It’s not necessary for a Data byte to
follow the EEPROM.
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7 Address & Data — the oscilloscope will be triggered on read or write frame in 7-bit
address mode.
Frame (Start: 7-bit address: R/W: Ack) — Data1 and Data2 are set to “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)
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If you set the trigger condition to 7 address & data or 10 address & data:
• Address can be selected in the hexadecimal range of 0x00 to 0x7F
(7-bit) or 0x3FF (10-bit). If the address is selected as "0xXX (7-bit
address)" or "0xXXX (10-bit address)", the address is ignored. It
will always trigger on the Ack bit followed by the address.
• Data1 and Data2 can be selected in the hexadecimal range of
0x00 to 0xFF. If the data is selected as "0xXX", the data is ignored.
It will always trigger on the Ack bit followed by the address.
• R/W Bit can be specied 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-bits" or "10-bits" to match the address of the
input signal.
• Touch the Data Length and turn the universal knob or by virtual keypad to set the
data length to match the data length of the input signal.
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16.2.3 I2C Serial Decode
The layout of the touch screen display when I2C decoding is enabled is as follows:
A. Waveform display area, shows the original waveforms of the bus signals
B. Bus display, shows the decode result of the bus. At most two buses can be
decoded at the same time. Touch Bus Operation of the dialog box to turn on or o
selected bus, and touch Bus Display to select the display type of decode result
(Binary, Decimal, Hex or ASCII) and set the bus location on the display
C. List display area. The decoding 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.
• The after a data or address byte represents ACK (acknowledgment), and
indicates no acknowledgment.
• The data value is displayed in white.
• A red point at the end of a segment indicates there is not enough space on the display
to show the complete content of a frame, and some content is hidden, such as .
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List
• TIME — The horizontal oset of the current data frame head relative to the trigger
position.
• Address — Address value. For example, "0x2AB" means that address = 2AB with
acknowledgement.
• R/W — Read address or write address.
• DATA — 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 included.
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16.3 SPI Trigger and Serial Decode
This section covers triggering and decoding SPI signals. Please read the following for
more details: " SPI Signal Settings", " SPI Trigger" and " SPI Serial Decode".
16.3.1 SPI Signal Settings
Connect the CLK, MOSI, MISO and CS signals to the oscilloscope and set the mapping
relation between channels and signals. Then set the threshold level of each signal. The
process of specifying the source and threshold is similar to " I2C Signal Settings".
CLK
In addition to specifying the source and the threshold level, for the CLK signal, it is also
necessary to specify 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 of the clock is aligned with the data, the falling edge is selected to latch the
data.
CS
The CS signal should be set to correct CS Type, including CS, ~CS, and Clock Timeout.
• CS – Active high. The CS signal needs a complete rising edge on the screen to be
regarded as active.
• ~CS – Active low. The ~CS signal needs a complete falling edge on the screen to be
regarded as active.
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• Clock Timeout – It is not necessary to specify the source and the threshold level for
the CS signal. The only parameter for the CS signal is the timeout Limit, which is the
minimum time that the clock signal must be held idle for before the oscilloscope
acquires valid data. This setting is suitable for the case where the CS signal is not
connected, or the number of oscilloscope channels is insuicient (such as two-channel
oscilloscopes).
The method of copying settings is the same as I2C signal settings. See " I2C 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 on the CS signal shown in the screen:
When the CS type is set to Clock Timeout, turn on Cursor, measure the clock idle time
between frames as 300 μs, and measure the interval between clock pulses as 2.4 μs,
then set the timeout to a value between 2.4 and 300 μs. In this example it is set to 10 μs:
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If the data width is set 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:
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16.3.2 SPI Trigger
The trigger condition for the SPI trigger is mainly about data.
Touch Trigger Setting in
the dialog box to set data:
A. Trigger Type: MISO or MOSI
B. Data Length: 4~96 bits
C. Set to trigger on the specified data value. Touch Data
Value twice, and enter the value by the virtual keypad,
or touch All Same to set all bits to 0, 1 or ignored ("X")
D. Set the bit order to MSB or LSB
E. Return to previous menu
16.3.3 SPI Serial Decode
The configuration of SPI decoding is similar to I2C.
In the Bus Config menu, Data Length (4-32 bit) and Bit Order
(LSB or MSB) are congurable.
16.4 UART Trigger and Serial Decode
This section covers triggering 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".
In the BusConfig menu of trigger or decode, the following
parameters are available:
A. Touch to select the baud rate: 600,1200, 2400, 4800,
9600, 19200, 38400, 57600, 115200 b/s or Custom
B. Data Length: 5~8 bit
C. Parity Check: None, Odd, Even, Mark or Space. If the
data is 9 bits, the 9
Space parity
th bit is
treated as Mark parity or
D. Select the number of stop bits
E. Set the idle level
F. Set the bit order
G. Return to previous menu
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The method of copying settings is the same as I2C signal settings. See " I2C Signal
Settings" for details.
16.4.2 UART Trigger
Touch Trigger Setting in the dialog box to set the trigger
condition:
A. Source Type: RX or TX
B. Trigger Condition: Start, Stop, Data or Error
C. When the "trigger condition" is Data, set the compare
type to: =, ＞, ＜
D. When the "trigger condition" is Data, set the data
value
E. Return to previous menu
Trigger Condition
• 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 0x.
• Error — The oscilloscope performs parity check on the data according to the parity
type set by the user, and triggers if the check value is incorrect.
16.4.3 UART Serial Decode
The configuration of UART decoding is similar to that of I2C decoding.
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16.5 CAN Trigger and Serial Decode
This section covers triggering and decoding CAN signals. Please read the following for
more details: " CAN Signal Settings", " CAN Trigger" and " CAN Serial Decode".
16.5.1 CAN Signal Settings
Connect the CAN_H and CAN_L 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".
In BusConfig menu of trigger and decode, baud rate can be set to: 5 kb/s, 10 kb/s, 20
kb/s, 50 kb/s, 100 kb/s, 125 kb/s, 250 kb/s, 500 kb/s, 800 kb/s, 1 Mb/s or Custom.
The method of copying settings is the same as I2C signal settings. See " I2C Signal
Settings" for 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 specied 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 universal knob.
• ID —The oscilloscope triggers on the data frame that matches the specified ID. ID,
ID Bits (11-bit or 29-bit), and Curr ID Byte (1st, 2nd, 3rd, or 4th byte) can be set.
• ID + Data —The oscilloscope triggers on the data frame that matches the specified
ID and data.ID, ID Bits (11-bit or 29-bit), Curr ID Byte (1st, 2nd, 3rd, or 4th byte),
Data1 and Data2 can be set.
• Error—The oscilloscope triggers on the error frame.
16.5.3 CAN Serial Decode
The configuration of CAN decoding is similar to that of I2C decoding.
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On the bus:
• ID is displayed in green.
• LEN (data length) is displayed in light yellow.
• DATA is displayed in white.
• CRC is displayed in blue.
• The red point at the end of a segment indicates there is not enough space on the
display to show the complete content of a frame and some content is hidden.
In the list view:
• Time — The horizontal oset 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 — Acknowledge bit.
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16.6 LIN Trigger and Serial Decode
This section covers triggering and decoding LIN signals. Please read the following for
more details: “ LIN Signal Settings”, “ LIN Trigger” and “ LIN Serial Decode”.
16.6.1 LIN Signal Settings
Connect the LIN 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”.
In BusConfig menu of trigger and decode, baud rate can be set to: 600 b/s,1200 b/s,
2400 b/s, 4800 b/s, 9600 b/s, 19200 b/s or Custom.
The method of copying settings 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 matches the specied ID and
data.ID, Data1, and Data2 can be set.
• Data Error —The oscilloscope will trigger when a data error happens.
16.6.3 LIN Serial Decode
The configuration of LIN decoding is similar to that of I2C decoding.
On the bus:
• ID is displayed in green
• LEN (data length) and CHK are displayed in blue
• DATA is displayed in white.
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In the list view:
• Time — The horizontal oset of the current data frame head relative to the trigger
position.
• ID — ID of the frame.
• Data length — Data length.
• ID Parity — ID parity check.
• Data — Data values.
• Checksum — Data checksum.
DYNE
TELEDYNE
NE
NE
DYNE
16.7 FlexRay Trigger 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".
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In the BusConfig menu of the trigger and decoding section, the baud rate can be set to
2.5 Mb/s, 5.0 Mb/s, 10.0 Mb/s or Custom.
The method of copying settings is the same as I2C signal settings. See " I2C Signal
Settings" for details.
16.7.2 FlexRay Trigger
Touch Trigger Setting in the FlexRay trigger dialog box to set
the trigger conditions：
• TSS— The oscilloscope triggers on the transmission start
sequence.
• Frame— The oscilloscope triggers on the frame.
• Set Frame header indicators: Payload preamble indicator, null frame indicator,
sync frame indicator, startup frame indicator.
• Touch ID to set the frame ID by the universal knob or virtual keypad. The range
of ID is 0x000 to 0x7.
• Touch Compare 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 (Conict Avoidance Symbol/ Media
access Test Symbol) or WUS (Wake-up Symbol)
• Errors— The oscilloscope will trigger when a data error happens, including errors on
FSS, BSS, FES, Header CRC, and Frame CRC.
16.7.3 FlexRaySerial Decode
The configuration of FlexRay decoding is similar to that of I2C decoding.
On the bus:
• The signatures (CAS/MTS, WUP) are displayed in yellow-green.
• TSS transmission start sequence, displayed in yellow-green. The null frame
indicator, the Sync frame indicator, and the Startup frame indicator are displayed in
the frame and displayed in pink.
• The ID is displayed in the frame and is displayed in green.
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• PL (Valid Data Length) is displayed in frames, in words, in light yellow.
• HCRC (Head Check Code) is displayed in the frame and displayed in blue.
• CYC (cycle) is displayed in the frame and displayed in light yellow.
• 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 oset 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
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16.8 CAN FD Trigger and Serial Decode
This section covers triggering and decoding CAN FD signals. Please read the following
for more details: " CAN FD Signal Settings", " CAN FD Trigger" and " CAN FD Serial
Decode".
16.8.1 CAN FD Signal Settings
Connect the CAN FD 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".
In BusConfig menu of trigger and decode, the nominal baud rate can be set to: 10 kb/s,
25 kb/s, 50 kb/s, 100 kb/s, 250 kb/s, 1 Mb/s or Custom. The data baud rate can be set
to: 500 kb/s, 1 Mb/s, 2 Mb/s, 5 Mb/s, 8 Mb/s, 10 Mb/s or Custom.
The method of copying settings is the same as I2C 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 o 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
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
universal knob.
• ID— The oscilloscope triggers on the data frame that matches the specified ID. ID, ID
Bits (11-bit or 29-bit), and Curr ID Byte (1st, 2nd, 3rd, or 4th byte) can be set.
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• ID + Data— The oscilloscope triggers on the data frame that matches the specified ID
and data.ID, ID Bits (11-bit or 29-bit), Curr ID Byte (1st, 2nd, 3rd, or 4th byte), Data1
and Data2 can be set.
• Error— The oscilloscope triggers on the error frame.
• Error Frame
• Stuff Bit Error
• CRC Mismatch Error: The oscilloscope triggers when the calculated CRC does not
match the transmitted CRC.
• Stuff Bit Cnt Err: Eective only when ISO is turned on, the oscilloscope triggers
when the stu bit count is incorrect.
• Stuff Bit Cnt Par. Err: Eective only when ISO is turned on, the oscilloscope
triggers when the polarity of the stu 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 displayed in light yellow.
• D (Data) is displayed in white.
• CRC is displayed in blue.
• Ack is displayed in pink.
• The red point at the end of a segment indicates there is not enough space on the
display to show the complete content of a frame and some content is hidden.
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In the list view:
• Time— The horizontal oset of the current data frame head relative to the trigger
position.
• Type— Type of the frame. Standard CAN frame is represented by "Std", CAN FD
frame is represented by "FD", the extended frame is represented by "Ext" and the
remote frame is represented by "RTR".
• ID— Frame ID.
• Length— Data length.
• Data— Data bytes.
• CRC— Cycle redundancy check.
• Ack— Acknowledge bit.
16.9 I2S Trigger and Serial Decode
This section covers triggering 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"
BCLK
In addition to specifying the source and the threshold level, BCLK signals also require
the specification of the Edge Select.
• Rising– Data latched on the rising edge of the clock.
• Falling– Data latched on the falling edge of the clock.
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WS
In addition to specifying the source and the threshold level, WS signals also require the
specication of the Left CH.
• Low–Select left channel when WS is low and right channel when WS is high.
• High–Select the right channel when WS is low and left channel whenWS is high.
The method of copying settings is the same as I2C signal settings. See " I2C Signal
Settings" for details.
16.9.2 I2S Trigger
Touch Trigger Setting in the I2S trigger dialog box to set the
trigger conditions：
A. Audio 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 Condition" is Data, set the data value
I. Return to previous menu
Trigger Condition
• 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 related to the number of Data Bits.
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