Acquiring Waveforms
TDS5000 Series User Manual
3-5
Use input conditioning to ensure that the oscilloscope acquires the best possible
data for processing. To do this:
H Set the vertical scale to control the size of the vertical acquisition window
for each channel to capture all or part of the input signal vertical amplitude.
When vertical scaling is set to capture a fraction of the input signal (to
increase detail), the vertical offset control determines which part of the input
signal is captured by the vertical acquisition window.
H Set the horizontal scale to control the size of the horizontal acquisition
window to capture as much as you want of the input signal(s). Set the
horizontal position to delay the window relative to a trigger and to control
where in the input signal (data stream) that the horizontal acquisition
window acquires.
For more background on acquisition windows, refer to Input Conditioning
Background on page 3--14.
The oscilloscope can automatically obtain and display a stable waveform of
usable size. Push the AUTOSET button to automatically set the oscilloscope
controls based on the characteristics of the input signal. Autoset is much faster
and easier than a manual control-by-control setup.
The oscilloscope can also be reset to its factory default settings by pushing the
front-panel DEFAULT SETUP button.
Use of some input conditioning controls or features may be limited when other
control settings are in effect. Voltage offset is incompatible with reference
waveforms because offset is an acquisition control.
The following sections provide details that can make it easier to set up and
acquire your waveforms.
Probes and Signal Connection. Select the probe or cable that brings the signal into
the oscilloscope. Choose the probe or cable that best fits your acquisition task,
whether it’s connecting an active probe to test a digital circuit, or connecting to a
test fixture through BNC cables to characterize a device. The connection to the
oscilloscope depends on your application.
Tektronix provides a variety of probes and cables for this product. Refer to
Accessories and Options on page 1--31 for a list of TDS5000-compatible probes.
You can also check your Tektronix catalog for connection accessories to support
your probing requirements. For more information about a particular probe, read
the documentation that came with that probe.
Up to four acquisition channels are available. You can display each channel as a
waveform and/or use the channel data to create other waveforms, such as math
and reference waveforms.
Connecting and
Conditioning Your Signals