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Reference
CSA7000 Series
Communications Signal Analyzers
TDS7000 Series
Digital Phosphor Oscilloscopes
071-7000-01
*P071700001*
071700001
To Use the Front Panel
You can use the dedicated, front-panel knobs and buttons to do the most commonly performed operations.
Turn INTENSITY to adjust waveform intensity.
Push FastAcq to turn Fast Acquisition
on and off.
Push CURSORS to turn cursors on and off.
Push PRINT to make a hard copy.
Push DEFAULT SETUP to return settings to the
default values.
Push AUTOSET to quickly set the vertical,
horizontal, and trigger controls for a
usable display.
Use the multipurpose knobs to control
parameters selected from the screen interface.
Push a FINE button to make small changes with
a multipurpose knob.
Push to turn the touch screen on and off.
Push ZOOM 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 additional 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.
Copyright E Tektronix, Inc. Beaverton, OR 97077
www.tektronix.com
To Use the Screen Interface
You can control all oscilloscope functions except the power switch using only the screen interface.
Touch here to
change to menu-bar
Choose the Toolbar operation.
Touch a button in the toolbar to display a
control window at the bottom of the display.
Touch a screen control to change a setting.
Touch a numerical control to assign that control
to a multipurpose knob. Turn the multipurpose
knob to adjust the parameter value.
Touch here to change to
toolbar operation.
Or 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.
To Display a Waveform
Attach a probe to CH 1 and connect the probe 1
to your signal.
CSA7404
CSA7154
CH 1
TDS7404
TDS7254
TDS7154
CH 1
TDS7104
TDS7054
CH 1
Push CH 1 if channel 1 is not 2
already displayed.
Push AUTOSET. 3
Adjust VERTICAL and HORIZONTAL 4
POSITION and SCALE if necessary to
optimize the display.
Adjust RESOLUTION to change the record 5 6
length and sample rate. You can acquire
more samples in the waveform to see more Adjust INTENSITY to change the
detail or acquire fewer samples with a brightness, vector fill, and display
faster update rate. persistence of acquired points.
To See More Waveform Detail
Use Zoom Use the Zoom function to magnify an acquisition vertically, horizontally, or in both
display dimensions. POSITION or FACTOR changes that you make to the Zoom
graticule affect only the zoom display, not the actual acquired waveform.
Push the ZOOM button to display a 1
zoom graticule.
Push the HORIZ button or the VERT button to 2
select the axis you want to magnify in the zoom Main graticule Zoom graticule
graticule. Use the multipurpose knobs to adjust
the zoomed waveform's position and
magnification factor.
You can also set up a zoom graticule 3
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 zoom graticule mode from the 4
drop-down list to magnify the highlighted
waveform segment.
Use Horizontal Delay Use horizontal DELAY to acquire waveform detail in a region that is separated from
the trigger location by a significant interval of time.
Trigger point
Acquired waveform
Delay time
Expansion point
Push the front-panel DELAY button. 1
Adjust the delay time with the horizontal 2
POSITION control, or enter the delay time
in the control window.
Adjust the horizontal SCALE to acquire 3
the detail you need around the delay
expansion point.
More Operating Tips:
H You can use Zoom and Horizontal Delay together to magnify a delayed
acquisition.
H Toggle Horizontal Delay on and off to quickly compare signal details at two
different areas of interest, one near the trigger location and the other centered at
the delay time.
To Use Fast Acquisition
Turn Fast Acquisition on to acquire up to 400,000 waveforms per second.
Push the front-panel FastAcq button. 1
Or select Fast Acquisitions in the
Horiz/Acq menu.
Adjust INTENSITY to optimize the intensity or 2
color grading for the signal you want to analyze.
Increasing intensity can make less-frequently
acquired points brighter in the display.
How DPOs Work
Unlike DSOs that have long dead times
between acquisitions, Digital Phosphor
Oscilloscopes (DPOs) continuously acquire
waveforms at rates comparable to analog
oscilloscopes. In Fast Acquisition mode, DPOs
continuously overlay the acquired information
into a three-dimensional database that is
updated on the display 30 times per second.
For each pixel in the display, the intensity (or
color) of the pixel is proportional to the
number of actual samples that the pixel
represents.
Analog Real Time sweeps
Digital Storage acquisitions
Digital Phosphor acquisitions
More Operating Tips:
H Choose one of the color grading palettes in the Display Colors control window to
see different sample densities represented in different colors.
H Turn AutoBright on in the Display Appearance control window. When you use
AutoBright, the displayed waveforms remain visible even at low trigger repetition
rates.
To Choose an Acquisition Mode
Select Acquisition Mode... in the 1
Horiz/Acq menu.
Or touch the Horiz button, and then
select an acquisition mode in the
horizontal/acquisition control window.
For Average or Envelope acquisition modes, 2
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.
record duration Displayed record points (at
How the Acquisition acquisition interval =
number of points in record maximum horizontal magnification)
Modes Work
Interval 1 2 3 4 Interval 1 2 3 4
Sample mode retains one sampled point from
each acquisition interval.
Sample
Waveform Data Base mode takes an ensemble
of acquisitions that is best for accurate eye WfmDB
pattern measurements.
Peak Detect mode uses the highest and Max Max
lowest of all the samples contained in two Min Min
consecutive acquisition intervals. Peak Detect
Hi Res mode calculates the average of all
the samples for each acquisition interval. Hi Res
Three acquisitions from one source
Acquisition 1 2 3
Envelope mode finds highest and lowest record
points over many acquisitions. Envelope uses
Peak Detect for each individual acquisition. Envelope
Average mode calculates the average value for
each record point over many acquisitions. Average
Average uses Sample mode for each individual
acquisition.
To Select a Trigger
Select the EDGE trigger type and then set the
source, coupling, slope and mode with these
front-panel controls. Push ADVANCED to select
one of the other trigger types.
You can also select a trigger type in the
Trigger menu.
Or touch the Trig button and then select a
trigger type in the trigger control window
that is displayed.
Trigger Selections
Trigger type Levels Timers Trigger conditions
Edge Single level None Trigger on rising or falling edge, as defined by slope
control. Coupling choices are DC, AC, AC LF Reject, AC
HF Reject, and Noise Reject.
Comm Depends on Coding None Trigger on telecom signals. Optional on TDS7000 series.
Trigger on serial pattern data.
Serial Single level plus clock None Optional on TDS7000 series (not available on TDS7104 or
and bit pattern TDS7054).
Glitch Single level One to specify glitch Trigger on glitches narrower than the specified width or
width ignore glitches narrower than the specified width.
Width Single level Two to specify minimum Trigger on pulses that have widths between the range of
and maximum pulse the two timers or outside the range of the two timers.
widths
One to specify an
Runt Two levels to define the optional minimum Trigger on a pulse that enters the transition region from
logic transition region runt-pulse duration one side but does not leave the region from the other side.
Timeout Single level One to specify time-out Trigger when a signal does not make a transition for a
time specified length of time.
Transition Two levels to define the One to specify transition Trigger when a logic signal spends more time or less time
logic transition region time in the transition region than a specified amount of time.
Setup/Hold Independent levels for One to specify setup Trigger on violations of setup or hold time between a Data
Data and Clock time and one to specify signal and a Clock signal. The specified setup and hold
hold time times can be positive or negative values.
Pattern Independent levels for One to specify pattern Trigger when a Boolean combination of up to four
each channel duration channels becomes true. Trigger immediately or only after
the combination is true for a specified time duration.
State Independent levels for None Trigger on transition of one channel when a Boolean
each channel combination of up to three other channels is true.
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 1
the A Event (Main) tab of the trigger
control window.
Choose a function in the AB Sequence tab of 2
the trigger control window.
Set the trigger delay time or the number 3
of B events, as appropriate.
Set the B trigger characteristics in the B Event 4
(Delayed) tab of the trigger control window.
Pretrigger Posttrigger
record record
Acquired waveform record
Trigger on B Event A trigger point
A trigger
The A trigger arms the oscilloscope.
source
Posttrigger acquisition starts on nth B event.
B trigger
source
B trigger point
Waiting for nth
event (Where n=5)
B Trigger After Delay Time A trigger point
The A trigger arms the oscilloscope. A trigger
Posttrigger acquisition starts on the first B source
edge after the trigger delay time.
B trigger
source Trigger
delay time 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 When using the B trigger, the A trigger can be any of the following types: Edge,
Glitch, Width, or Timeout. The B trigger type is always Edge type.
To Perform Mask Testing
(standard on CSA7000, optional on TDS7000 series)
Select Mask Setup in the mask menu. 1
Choose a mask type. 2
Choose a mask standard. 3
Select Autoset to automatically set up the 4
controls based on the input signal.
Optionally select Autofit to align each 5
acquired signal with the mask to minimize the
number of hits.
Use the Source tab to select the source of
your signal.
Use the Tolerance tab to increase or decrease
the mask margin used in mask testing.
To Setup Mask Pass/Fail Testing and View Results
(standard on CSA7000, optional on TDS7000 series)
Use the Pass/Fail Setup tab to setup Pass/Fail 1
testing.
Use the Pass/Fail controls to start, stop, or 2
continuously run a mask test.
Use the Polarity controls to select testing the 3
positive, negative, or both the positive and
negative pulses.
Enter the number of waveforms to acquire and 4 When using masks that enable the Waveform Database mode, the
use in your mask test. # of Wfms field changes to # of Samples field.
Enter the number of waveforms that must fail to 5
consider the test a failure.
Enter the time that the instrument delays before 6
starting the mask test.
Use the Pass/Fail Test Notification controls
to select how you want to be notified when
a failure occurs and when the
mask test completes.
Use the Pass/Fail Results tab to view the
results of your mask testing.
To Take Automated Measurements
Touch the Meas button, and then select up to
eight measurements using the measurement
control window.
Use the tabs to access measurements by
category.
Or choose a measurement for the selected
waveform directly in the Measure menu.
Automated Measurement Selections
Amplitude Time More Histogram Comm
(optional on TDS7000 series)
Amplitude Max Positive Area Wfm ExtRatio Eye Height Eye Top
Rise Time Width Max
Count
High Min Negative Cycle Area Hits in Eye Width Eye Base
Fall Time Min Ext Ratio %
Width Box
Positive Negative Peak
Low Pk-- Pk Duty Cycle Phase Pk-- Pk Ext Ratio (dB) Crossing %
Duty Cycle Hits
Cycle Burst
RMS Period Delay Width Median Mean Jitter P-P Noise P-P Cyc Distortion
RMS
Positive
Overshoot Mean Frequency Std Deviation