Tektronix TDS5000 Series User manual

Reference
TDS5000 Series
Digital Phosphor Oscilloscopes
071-1020-00
*P071102000*
071102000

To Use the Front Panel
You can use the dedicated, front-panel knobs and buttons to do the most common operations.
Use the multipurpose knobs to control
parametersselectedfromthescreeninterface.
Push a FINE button to make small changes with
amultipurposeknob.
Push CH<X> to turn channel displays on and off.
Adjust the channel POSITION and SCALE or
change the input termination with dedicated
knobsandbuttons.
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.
Push AUTOSET to automatically set the vertical,
horizontal, and trigger controls to produce a
usabledisplay.
Push OFF to turn the optional touch
screen on and off.
Push DEFAULT SETUP to return settings to the
factorydefaultvalues.
Push PRINT to make a hard copy.
Push FastAcq to turn Fast Acquisition
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 andPOSITION 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.
Copyright ETektronix, Inc. Beaverton, OR 97077
Push CURSORS to turn cursors on and off.
Turn INTENSITY to adjust waveform intensity.

To Use the Screen Interface
Click a numerical control to assign that control
to a multipurpose knob. Turn the multipurpose
knob to adjust the parameter value.
Click a screen control to change a setting.
Or Choose the Menu Bar
Choose the Toolbar
Click a button in the toolbar to display a
control window at the bottom of the display.
Use some menu items to display a control
window at the bottom or side of the display.
Click here to change to menu-bar operation.
Click here to close a control window.
You can control all oscilloscope functions, including powering off the instrument, through the screen interface.
Use some menu items to directly
changesettings.
HUse the optional touch screen to control the oscilloscope when bench space is
unavailable, such as on a cart or in an equipment rack.
HPlug 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.
HUse the menu bar to access PC-related functions such as, Page Setup, Export,
andCopy.
More Operating Tips:
Click here to change to toolbar operation.

To Display a Waveform
Attach a probe to CH 1 and connect the probe
to your signal. 1
Push AUTOSET.3
Adjust VERTICAL and HORIZONTAL
POSITION and SCALE if necessary to
optimizethedisplay. 4
Push CH 1 if channel 1 is not
alreadydisplayed.2
Recommended Probe
Accessories
P5050 Passive Probes for
general-purpose applications P6243 and P6245 Active Probes or P6158 Low-C Probe for high-speed applications
P6246, P6247, P6248 Differential Probes
for differential signals and low-noise
applications
TCP202 Current Probe for
general-purpose applications
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
fasterupdaterate.
5
6
Adjust INTENSITY to change the brightness,
vector fill, and display persistence of acquired
points.

To See More Waveform Detail
You can also set up a zoom graticule
from the screen interface. Click and drag
across the segment of the waveform that
you want to see in greater detail.
3
1
Then select Zoom from the drop-down list to
magnifythehighlightedwaveformsegment. 4
Use Horizontal Delay
Adjust the delay time with the horizontal
POSITION control, or enter the delay time
in the control window.
2
Adjust the horizontal SCALE to acquire
the detail you need around the delay
expansionpoint.
3
Use Zoom
Push the ZOOM button to split the
screen and add a zoom graticule. 1
Use the Zoom function to magnify an acquisition vertically, horizontally, or in both
waveformdimensions.SCALE or POSITION changes you make to the Zoom graticule
affect only the display, not the actual waveform that is acquired.
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
Expansion point
Push the front-panel DELAY button.
HYou can use Zoom and Horizontal Delay together to magnify a delayed
acquisition.
HToggle 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.
More Operating Tips:
Main graticule 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.
2
Delay time

1
To Use Fast Acquisition
Push the front-panel FastAcq button.
Or select Fast Acquisitions in the
Horiz/Acq menu.
2
Adjust INTENSITY to optimize the intensity or
color grading for the signal you want to analyze.
Increasingintensitycanmakeless-frequently
acquired points brighter in the display.
HChoose one of the color grading palettes in the Display Colors control window to
see different sample densities represented in differentcolors.
Turn Fast Acquisition on to acquire up to 100,000 waveforms per second.
HTurn AutoBright on in the Display Appearance control window. When you use
AutoBright, the displayed waveforms remain visible even at low trigger repetition
rates.
More Operating Tips:
How DPOs Work
Analog Real Time sweeps
DigitalStorage acquisitions
DigitalPhosphor acquisitions
Unlike DSOs that have long dead times between
acquisitions,Digital Phosphor Oscilloscopes
(DPOs)continuouslyacquirewaveformsatrates
comparabletoanalog oscilloscopes. DPOs
continuouslyoverlaythe 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.

For Average orEnvelope acquisition modes,
click the # of Wfms control and then set the
number of waveforms with the multipurpose
knob. You can also double-click the control and
use the pop-up keypad.
To Choose an Acquisition Mode
1
2
Select Acquisition Mode... in the
Horiz/Acq menu.
Or click the Horiz button, and then select
an acquisition mode in the
horizontal/acquisitioncontrolwindow.
How the Acquisition
Modes Work
Displayed record points (at
maximum horizontal magnification)
Peak Detect
Interval1 2 3 4 Interval1 2 3 4
Sample
Average mode calculates the average value for
each record point over many acquisitions.
Average uses Sample mode for each individual
acquisition.
Envelope
Average
Acquisition 1 2 3
Three acquisitions from one source
Envelope mode finds highest and lowest record
pointsovermany acquisitions. Envelope uses
Peak Detect for each individual acquisition.
Sample mode retains one sampled point from
eachacquisition interval.
acquisition interval +record duration
number of points in record
Peak Detect mode uses the highest and
lowest of all the samples contained in two
consecutiveacquisition intervals.
Hi Res mode calculates the average of all
the samples for each acquisition interval. Hi Res

To Select a Trigger
You can also select a trigger type in the
Trigger menu.
Or click the Trig button and then select a
trigger type in the trigger control window
that is displayed.
SelecttheEDGE 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.

Trigger Selections
Trigger type Levels Trigger conditions
Edge
Glitch
Width
Runt
Timeout
Transition
Setup/Hold
Pattern
State
Single level
Single level
Single level
Two levels to define the
logic transition region
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
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.
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.
Pulses can be qualified with the logical states of other
channels (4-channel models only).
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.
Timers
None
One to specify glitch
width
Two to specify minimum
and maximum pulse
widths
One to specify an
optional minimum
runt-pulse duration
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
Single level None Trigger on NTSC, PAL, SECAM, Analog HDTV, and
Custom video formats.
Video
Window Two levels to define
signal transition region One to specify an optional minimum
violation width
Trigger when a signal violates either upper or lower
boundaries set outside the normal range of the signal.
Events can be qualified with the logical states of other
channels (4-channel models only).