Tektronix TDS6804B, TDS6604B Reference manual

Reference
TDS6000B Series Digital Storage Oscilloscopes
071-1490-00
*P071149000*
071149000
To Use the Front Panel
You can use the dedicated front-panel knobs and but tons to do the most commonly performed operations.
Turn INTENSIT Y to adjust waveform intensity.
CURSORS to turn cursors on and off.
Push
PRINT to make a hard copy.
Push
Push
DEFAULT SETUP to return settings to the
default values.
AUTOSET to quickly set the vertical,
Push
horizontal, and trigger controls for a
parameters selected from the screen interface.
Push a
FINE button to make small changes with
usable display.
a multipurpose knob.
Push to turn the touch screen on and off.
Push
MulitView Zoomt to add a magnified
graticule to the display. Push the HORIZ or VERT
button to select the axis that you want to
magnify.
Use these knobs and buttons to set horizontal
SCALE and POSITION for the waveforms. Push
DELAY to turn on horizontal delay, and then
use POSITION to set the delay time. Adjust
RESOLUTION to change the number of
acquired points in the waveform.
Use these knobs and buttons to set the basic
trigger parameters. Push
ADVANCED to display
a menu of Pinpointt trigger functions.
Use these buttons to start and stop
acquisition or start a single acquisition
sequence. The ARM, READY, and TRIG’D
lights show the acquisition status.
Turn channel displays on and off, and adjust the
channel
POSITION and SCALE using dedicated
knobs and buttons.
2
Copyright E Tektronix, Inc. Beaverton, OR 97077.
To Use the Screen Interface
You can control all oscilloscope functions except the power switch using only the screen interface.
Choose the Toolbar
Touch a button in the toolbar to display a
control window at the bottom of the displ ay.
Touch a screen control to change a setting.
Touch a numerical control to assign that control
to a multipurpose knob. Turn the mul tipurpose
knob to adjust the parameter value.
Touch here to change to
Touch here to change to menu bar operation.
toolbar operation.
Choose the Menu Bar
Use some menu items to
display a control window at the
bottom or side of the display.
Use some menu items to
directly change settings.
Touch here to close a
control window.
More Operating Tips:
H Use the touch screen to control the oscilloscope when bench space is
unavailable, such as on a cart or in an equipment rack.
H Plug in a mouse and keyboard if you have the bench space to use them. You can
plug in a USB mouse or keyboard anytime, even while the oscilloscope is running.
H Use the menu bar to access PC-related functions, such as Page Setup, Export,
and Copy.
3
To Display a Waveform
Attach a probe to CH 1 and connect the probe
to your signal.
Push CH 1 if channel 1 is not
already displayed.
1
TDS6000B Series
CH 1
Operating Tip:
H To Autoset multiple channels, turn on the desired
channels then press Autoset.
2
Push AUTOSET.
Adjust VERTICAL and HORIZONTAL
POSITION
Adjust RESOLUTION to change the record
length and sample rate. You can acquire
more samples in the waveform to see more
detail or acquire fewer samples with a
and SCALE if necessary to
optimize the display.
faster update rate.
3
4
5
Adjust INTENSITY to change the
brightness, vector fill, and display
persistence of acquired points.
6
4
To See More Waveform Detail
Use MultiView Zoom
Push the MultiView ZOOMt button to display a
zoom graticule, display zoom on zoom, and
create up to 4 zoomed views of a waveform.
Push the HORIZ button or the VERT button
to select the axis to magnify in the zoom
graticule. Use the multipurpose knobs to
adjust the position and magnification
factor of the zoomed waveform.
You can also set up a MultiView Zoom
graticule from the screen interface. First
touch and drag across the segment of the
waveform that you want to see in greater
detail.
Then select a MultiView Zoom mode from the
drop-down list to magnify the highlighted
waveform segment.
Use the MultiView Zoom function to magnify an acquisition vertically, horizont ally, or in both waveform dimensions. POSITION or FACTOR changes that you make to the MultiView Zoom graticule affect only the zoom display, not the actual acquired waveform. You can select and lock together waveforms, and then scroll them automatically.
1
2
Main graticule
MultiView Zoom
graticule
3
4
Use Horizontal Delay
Push the front-panel DELAY button.
Adjust the delay time with the horizontal
POSITION control, or enter the delay time
in the control window.
Adjust the horizontal SCALE to acquire
the detail you need around the delay
expansion point.
More Operating Tips:
Use horizontal the trigger location by a significant int erval of time.
Trigger point
1
DELAY to acquire waveform detail in a region that is separated from
Acquired waveform
Delay time
Expansion point
2
3
H You can use MultiView Zoom and Horizontal Delay together to magnify a delayed
acquisition. You can adjust the size of the zoom window to; 50, 80, or 100% from Vertical Zoom setup.
H Toggle Horizontal Delay on and off to quickl y compare signal details at two
different areas of interest, one near the trigger location and the other centered at the delay time.
5
To Choose an Acquisition Mode
Select Horizontal/Acquisition Setup. . . in
the Horiz/Acq menu or touch the Horiz
button; then open the Acquisition tab.
Select an acquisition mode in the
horizontal/acquisition control window.
For Average or Envelope acquisition modes,
touch the # of Wfms control and then set the number of waveforms with the multipurpose knob. You can also double-touch the control
and use the pop-up keypad.
How the Acquisition
Modes Work
Sample mode retains one sampled point from
each acquisition interval.
1
2
3
acquisition interval =
Interval 1 2 3 4 Interval 1 2 3 4
record duration
number of points in record
Sample
Displayed record points (at
maximum horizontal magnification)
Waveform Data Base mode takes an ensemble
of acquisitions that is best for accurate eye
pattern measurements.
Peak Detect mode uses the highest and
lowest of all the samples contained in two
consecutive acquisition intervals.
Hi Res mode calculates the average of all
the samples for each acquisition interval.
Envelope mode finds highest and lowest record
points over many acquisitions. Envelope uses
Peak Detect for each individual acquisition.
Average mode calculates the average value for
each record point over many acquisitions.
Average uses Sample mode for each individual
acquisition.
Peak Detect
Hi Res
Three acquisitions from one source
Acquisition 1 2 3
Max
WfmDB
Max
MinMin
Envelope
Average
6
To Select a Trigger
Using the Pinpoint trigger system select the
EDGE trigger type and then set the source,
coupling, slope, and mode with these
front-panel controls. Push
one of the other trigger types.
You can also select a trigger type in the Trig
ADVANCED to select
menu.
Or touch the
Trig button, a Trigger Type button
and then select a trigger type in the window
that is displayed. Most triggers can be logic
qualified.
Trigger Selections
Trigger type Levels Trigger conditions
Edge
Comm
Serial
Glitch
Width
Runt
Single level
Depends on Coding
Single level plus clock and bit pattern
Single level
Single level
Two levels to define the logic transition region
Timers
None
None
None
One to specify glitch width
Two to specify minimum and maximum pulse widths
Onetospecifyan optional minimum runt-pulse duration
Trigger on the rising, falling, or either edge, as defined by slope control. Coupling choices are DC, AC, AC LF Reject, AC HF Reject, and Noise Reject.
Trigger on comm signals. Optional on TDS6000B series.
Trigger on 64-bit serial pattern data. Optional on TDS6000B series.
Trigger on glitches narrower than the specified width or ignore glitches narrower than the specified width.
Trigger on pulses that have widths between the range of the two timers or outside the range of the two timers.
Trigger on a pulse that enters the transition region from one side but does not leave the region from the other side.
Timeout
Transition
Setup/Hold
Pattern
State
Window
Single level
Two levels to define the logic transition region
Independent levels for Data and Clock
Independent levels for each channel
Independent levels for each channel
Independent levels to specify window
One to specify time-out time
One to specify transition time
One to specify setup time and one to specify hold time
One to specify pattern duration
None
Onetospecifyinsideor outside time
Trigger when a signal does not make a transition for a specified length of time.
Trigger when a logic signal spends more time or less time in the transition region than a specified amount of time.
Trigger on violations of setup or hold time between a Data signal and a Clock signal. The specified setup and hold times can be positive or negative values.
Trigger when a Boolean combination of up to four channels becomes true. Trigger immediately or only after the combination is true for a specified time duration.
Trigger on transition of one channel when a Boolean combination of up to three other channels is true.
One to specify inside or outside time
7
To Use the A (Main) and B (Delayed) Triggers
You can use the A Event (Main) trigger alone or combine it with the B Event (Delayed) trigger to capture more complex signals.
Set the A trigger type and source in
the A Event (Main) tab of the trigger
control window.
Choose a function in the AB Sequence tab of
the trigger control window.
Set the trigger delay time or the number
of B events, as appropriate.
Set the B trigger characteristics in the B Event
(Delayed) tab of the trigger control window.
Trigger on B Event
1
2
3
4
Posttrigger record
A trigger point
Pretrigger record
Acquired waveform record
The A trigger arms the oscilloscope.
Posttrigger acquisition starts on nth B event.
B Trigger After Delay Time
The A trigger arms the oscilloscope.
Posttrigger acquisition starts on the first B
edge after the trigger delay time.
A trigger
source
B trigger
source
A trigger
source
B trigger
source
Waiting for nth
event (Where n=5)
A trigger point
Trigger
delay time
B trigger point
B trigger point
More Operating Tips:
H B-trigger delay time and horizontal delay time are independent functions. When
you establish a trigger condition using either the A trigger alone or the A and B triggers together, you can also use horizontal delay to delay the acquisition by an additional amount.
H Trigger levels for A & B and multiple channels can be shared or independent.
8
To Perform Mask Testing
Select Mask Setup in the Masks menu.
Choose a mask type.
Choose a mask standard.
Select Autoset to automatically set up the
controls based on the input signal.
Optionally select Autofit to align each
acquired signal with the mask to
minimize the number of hits.
Use the Source tab to select the source of
your signal.
1
2
3
4
5
Use the Tolerance tab to increase or decrease
the mask margin used in mask testing.
9
To Set Up Mask Pass/Fail Testing and View Results
Use the Pass/Fail Setup tab to set up Pass/Fail
testing.
Use the Pass/Fail controls to start, stop, or
continuously run a mask test.
Use the Polarity controls to select testing the
positive, negative, or both the positive and
negative pulses.
Enter the number of waveforms to acquire and
use in your mask test.
Enter the number of waveforms that must fail to
consider the test a failure.
Enter the time that the instrument delays before
starting the mask test.
1
2
3
4
When using masks that enable the Waveform Database mode, the # of Wfms field changes to # of Sampl es field.
5
6
Use the Pass/Fail Test Notification controls
to select how you want to be notified when
Use the Pass/Fail Results tab to view the
a failure occurs and when the
mask test completes.
results of your mask testing.
10
To Take Automated Measurements
Touch the Meas button, and then select up to eight measurements using the measurement
Use the tabs to choose measurements in
control window.
the various categories.
Or choose a measurement for the selected
waveform directly in the Measure menu.
Automated Measurement Selections
Amplitude Time More Histogram
Amplitude
High
Low
Max
Min
Pk-- Pk
Rise Time
Fall Time
Positive
Duty Cycle
Positive
Width
Negative
Width
Negative
Duty Cycle
Area
Cycle Area
Phase
Wfm
Count
Hits in
Box
Peak
Hits
Max
Min
Pk-- Pk
ExtRatio
Ext Ratio %
Ext Ratio (dB)
Comm
Eye Height
Eye Width
Crossing %
Eye Top
Eye Base
RMS
Positive
Overshoot
Negative
Overshoot
Cycle
RMS
Mean
Cycle Mean
Period
Frequency
Delay
Burst
Width
Median
Std Deviation
± 1σ
Mean
± 2σ
± 3σ
Jitter P-P
Jitter RMS
Jitter 6σ
Noise P-P
Noise RMS
S/N Ratio
Cyc Distortion
Q-Factor
11
To Customize an Automated Measurement
Use Gating to confine the measurement to a certain portion of the waveform. Use cursors or any of the four MultiView Zoom areas to define
the gate region.
Measurement statistics characterize the
stability of the measurement.
Adjust the measurement reference levels to
different relative or different fi xed values.
Select snapshot to see a one-time view of all valid Normal or Comm measurements.
To Set Up a Histogram
Touch and drag across the segment of the
waveform that you want the histogram to cover.
To set up a horizontal histogram, for exam ple,
make the box wider than it is tall.
Select Histogram Horizontal from the
drop-down list.
View the histogram at the top or edge of
the graticule.
If you need to make any adjustments to the
histogram, use the histogram setup control
window. Select
Waveform Histograms in the
Measure menu.
1
2
3
4
Take automated measurements on histogram
data. See previous page for information.
12
5
To Take Measurements With Cursors
Push the front-panel CURSORS button.
Select the waveform you want to measure and
a cursor type in the cursor control window.
Or you can activate cursors on the selected
waveform directly in the
Push Setup and place cursors with the
multipurpose knobs or enter the cursor
Cursor menu.
locations numerically.
1
2
3
If you choose Waveform cursors to take
measurements between waveforms,
select the source for each cursor.
Read cursor measurement
results in the display.
4
5
More Operating Tips:
H You can set the cursors to move together in tandem if you choose the Tracking
cursor mode. The cursors move independently if you choose the Independent cursor mode.
H If you use the zoom graticule, you can place a cursor directly on a specific
waveform point to take precision measurements.
H You can also move cursors by touching or clicking them and then dragging them
to a new position.
13
To Use Math Waveforms
Select
Math Setup in the Math menu.
1
Choose one of the predefined math equations.
Or touch Editor to define a more advanced math
waveform. Then build the waveform expression
using sources, operators, constants,
measurements, and functions.
To Use Spectral Analysis
In the Math menu, select Spectral Controls to
define FFT magnitude and phase waveforms.
When an FFT waveform is selected, you can
use the multipurpose knobs to adjust the FFT
waveform just as you would using a spectrum
analyzer.
2
Adjust FFT center frequency
Adjust FFT span
14
You can view time-domain and
frequency-domain waveforms
simultaneously. You can also use
gating to select only a portion of the
time-domain waveform for spectral
analysis.
To Store Information
To Save and Recall Waveforms
To save or recall waveforms, select
Reference Waveforms and then Save Wfm. . .
or Recall Wfm. . . in the File menu.
Or touch the Refs button.
1
Use the reference setup control window to copy
a live waveform into one of four nonvolatile
reference waveform storage locations. You can
also display these waveforms as reference
waveforms.
Select Save Wfm to File to store the live
waveform as a file on a disk drive. You can
recall a waveform stored on disk int o one
of the internal reference waveform
locations for display.
To Save and Recall Instrument
Setups
To save an instrument setup, select
Instrument Setup in the File menu.
Or touch the
Setups button.
2
3
1
Use the settings control window to save the
current setup into one of ten internal storage
locations. Use the pop-up keyboard to label the
setups for easy identification.
Or select
current setup on a disk drive. You can recall any
setup stored on disk and then save it in an
To restore the oscilloscope to a known initial state,
push the front-panel
Or select
Save Settings to File to store the
internal setup storage location for
quicker access.
DEFAULT SETUP button.
Recall Default Setup in the File menu.
2
3
15
To Print a Hard Copy
To print a hard copy to an attached printer or a
network printer, push the front-panel PRINT
button.
Or select
you can make changes to the page orientation
Print in the File menu. If necessary,
in the Page Setup dialog box.
The Page Setup dialog box also includes
selectors for the print palette and a feature
called Ink Saver. Ink Saver optimizes the
display colors and shades for printing hard
copies on white paper.
To Copy or Export Your Results
You can use the Windows clipboard to
copy information. Simply select the item
to copy, copy it, and then paste it into
another Windows application.
You can export waveform data into a comma-
separated ASCII file for use in a spreadsheet or
data analysis program. Select
File menu to set the output content and format
for images, waveforms, or measurements.
16
Export Setup in the
To Run Application Software
You can install and run optional application software on your oscilloscope. These software packages provide advanced capability supporting many applications. Two examples are shown below; additional packages may be available. Contact your Tektronix representative for more information.
TDSJIT3 Jitter Analysis Software to
Use
characterize timing performance. Analyze
jitter on contiguous clock cycles using
single-shot acquisitions.
Use TDSET3 Ethernet Compliance Tests
Software to test to all three Ethernet standards:
10baseT, 100BaseT, and 1000BaseT.
Follow the instructions provided with the
application software to install it. To run
the software, select the application in the
File / Run Application menu.
17
To Connect to a Network
Like any other Microsoft Windows-based
computer, you can connect the oscilloscope
to a network to enable printing, file sharing,
internet access, and other communications
functions.
To make a network connection, consult with
your network administrator, and then use the
standard Windows utilities to configure the
oscilloscope for compatibility with your
network. See your manual or online help f or
more information.
Use OpenChoice software tools to create
custom applications internal to the
oscilloscope or remotely using GPIB of
Ethernet connections.
Network
To Use a Dual Monitor
Connect a keyboard, mouse, and monitor to
the oscilloscope and configure Windows for
dual-monitor mode. You can operate the
oscilloscope while having full use of
Windows and other installed applications on
the external monitor.
Connect the monitor to the upper XGA port
on the oscilloscope rear panel. Use the
Settings tab in the Windows Display
Properties dialog box to set up a
dual-monitor configuration.
Operating Tip:
H In order to get full advantage from the software such
as TDSJIT3 and RT-Eyet, use an external monitor. Scope graticule and measurement results can be viewed on the oscilloscope and plots such as histograms, eye diagrams, and jitter trend plots can be viewed on the monitor.
18
Rear Panel Inputs and Outputs
Removable hard disk drive to provide individual
environment for each user or to secure data;
loosen and then pull on thumb screws to release
the disk
CD-RW drive accessible from Windows; press
cover to open the drive, option FHD
Connectors for speaker and microphone
USB 2.0 connectors for mouse, keyboard,
or other peripherals
PS-2 connector for mouse
PS-2 connector for keyboard
RJ-45 connector to connect to network
Upper VIDEO port to connect a monitor for
dual-monitor operation
COM1 serial port
Parallel port (Centronics) to connect printer or
other device
Lower XGA port to replicate the oscilloscope display
on an external monitor
GPIB port to connect to controller
Auxiliary input (external trigger) input, External
reference input and reference output
19
Recommended Probes and Accessories
TDS6000B Series
P7240 4 GHz Active Probe for general-purpose applications
P7330 & P7350 Differential probes for differential-signal and low-noise applications
P7350SMA Differential probe for differential-signal and low-noise applications
P7260 6 GHz 5x/25x Active Probe
P7380SMA 8 GHz Differential signal acquisition system for high speed applications
TCA-1MEG Buffer Amplifier to connect 1MΩ accessories
P7380 8 GHz Active Probe for signal integrity applications
TCA-SMA, TCA-BNC 50,TCA-N,and TCA-75 adapters for your probes and cables
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