Tektronix TDS7054, TDS7104 Reference manual

Reference
TDS7000 Series Digital Phosphor Oscilloscopes
071-0701-00
*P071070100*
071070100
To Use the Front Panel
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 .
DEFAULT SETUP to return settings to the
Push
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.
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. Adjust the
channel
POSITION and SCALE or change the input
termination with dedicated knobs and buttons.
Copyright E Tektronix, Inc. Beaverton, OR 97077
To Use the Screen Interface
Y ou can control all oscilloscope functions except the power switch using only the screen interface.
Touch here to change to menu-bar
Choose the Toolbar
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.
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 change to
toolbar operation.
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. Y ou 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
to your signal.
Push CH 1 if channel 1 is not
already displayed.
Push AUTOSET.
1
2
3
Adjust VERTICAL and HORIZONTAL
POSITION
Adjust RESOLUTION to change the record
length and sample rate. Y ou 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.
Recommended Probe
Accessories
4
5 6
Adjust INTENSITY to change the
brightness, vector fill, and display
persistence of acquired points.
P6139A Passive Probes for general-purpose applications
P6243 and P6245 Active Probes or P6158 Low-C Probe for high-speed applications
P6247 and P6248 Differential Probes for differential signals and low-noise applications
TCP202 Current Probe for general-purpose applications
To See More Waveform Detail
Use Zoom
Push the ZOOM button to split the screen and add a zoom graticule.
Push the HORIZ button or the VERT button to
select the axis you want to magnify in the zoom
graticule. Use the multipurpose knobs to adjust
scale and position of the magnified waveform.
Y ou can also set up a zoom graticule
from the screen interface. Touch and drag
across the segment of the waveform that
you want to see in greater detail.
Then select Zoom from the drop-down list to
magnify the highlighted waveform segment.
Use Horizontal Delay
Use the Zoom function to magnify an acquisition vertically, horizontally, or in both waveform dimensions. affect only the display , not the actual waveform that is acquired.
SCALE or POSITION changes you make to the Zoom graticule
1
2
Main graticule Zoom graticule
3
4
Use horizontal the trigger location by a significant interval of time.
DELAY to acquire waveform detail in a region that is separated from
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.
Trigger point
Delay time
1
Acquired waveform
Expansion point
2
3
More Operating Tips:
H Y ou 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 200,000 waveforms per second.
Push the front-panel FastAcq button.
Or select
Adjust INTENSITY to optimize the intensity or
color grading for the signal you want to analyze.
Increasing intensity can make less-frequently
acquired points brighter in the display.
Fast Acquisitions in the
Horiz/Acq menu.
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. 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.
1
2
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.
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