Atec Tektronix-TDS500D-700D Series - Manual (Page 2)

HIGH FIDELITY SIGNAL
ACQUISITION
The high waveform capture
rate of the TDS 500D/700D
DPO series, together with its
high bandwidth and sample
rate, delivers instantaneous
signal feedback to show the
true signals that other scopes
may be missing. The DPO
acquisition acquires up to
1000 times more data than
typical DSOs, allowing the
capture of complex signals,
reducing debugging times
from hours to seconds.
Channels can be transpar-
ently combined to achieve
higher sample rates and
longer record lengths. The
record length can be option-
ally increased to 8M points,
providing a high-resolution
representation of the signal
over a long period of time.
All of the TDS products pro-
vide wide dynamic range, flat
response, fast overdrive
recovery, calibrated DC offset,
1 mV/div sensitivity
(10 mV/div maximum sensi-
tivity on TDS 794D),
1 ns peak detect, and internal
calibration.
POWERFUL AND FLEXIBLE
TRIGGERING
In addition to basic triggering
such as edge and pulse-
width, these Digtial Phosphor
Oscilloscopes have several
trigger modes tailored for
specific design and debug
applications. Logic and pulse
triggers, including
setup/hold, glitch, slew rate,
and timeout triggers, capture
hard-to-catch digital design
problems. The optional video
trigger provides line and field
selection for NTSC, PAL, and
HDTV standards. The optional
communications trigger capa-
bility addresses needs to
acquire a wide variety of
AMI, CMI, NRZ, and Ethernet
communication signals.
ADVANCED PERFORMANCE
FEATURES
Digital Phosphor
Oscilloscopes provide three
dimensions of signal informa-
tion including amplitude,
time, and the distribution of
amplitude over time; in the
form of quantitative intensity
information. The resulting
information-rich display
enables the user’s eye to inte-
grate the subtle patterns and
variations of actual signal
behavior.
Color –Grading displays histor-
ical information that has been
acquired over time. This is
especially powerful when
used in DPO operation,
where the colors show rela-
tively how often random
events occur.
Automatic Measurements elimi-
nate the need for manually
measuring the waveform
against the graticule or with
cursors. Measurement gating,
(gating not available for DPO
operation) allows the user to
select a specific part of the
live waveform for measure-
ment. Measurement statistics
(min, max, mean, and stan-
dard deviation), give addi-
tional information about the
variations in the measure-
ments over time (for example,
worst case excursions),
increasing the confidence in
the quality of the measure-
ments.
Waveform Histograms allow the
examination of the statistical
nature of the signal. Horizon-
tal histograms, which are use-
ful for evaluating signal jitter,
sample the waveform within
a specified region, sort the
values into time bins, and
plot the accumulated bin val-
ues versus time. Vertical his-
tograms, which are useful for
evaluating signal noise, sam-
ple the waveform within a
specified region, sort the val-
ues into amplitude bins, and
plot the accumulated bin val-
ues versus amplitude.
For histograms of DPO acqui-
sitions (both live and stored),
the specified region can be
repositioned and will update
to reflect the underlying 3
dimensional data base (32
bits in shallow mode, 64 bits
in deep mode).
Communication Mask
Testing (available as an
option) allows mask compli-
ance testing of a wide variety
of communication signals to
industry standards. Special-
ized measurement acces-
sories, unique trigger modes,
built-in optical reference
receiver filters, mask autoset,
and mask violation counting
make these measurements
easily and repeatably.
page 2
A traditional DSO is unable to display the details and
dynamic changes of this composite video waveform.
The same composite video signal, captured with a Digi-
tal Phosphor Oscilloscope, shows all the details of this
complex waveform, in real-time.