Datasheet

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Protocol-based signal with communications pauses
Single-shot acquisition
Acquisition using segmented memory
Analysis of each segment using the history function
Long period with communications pauses
Missed acquisition due to limited memoryConventional single-shot acquisition
Acquisition of few pulses with many periods of inactivity
Acquisition of signal segments with activity
Display and analysis of each signal element
Application Card | Version 03.00
Fast analysis of sporadic errors with
segmented memory and history function
Your requirements
Sporadic errors cost valuable time during the development
of new products. Debugging protocol-based buses is es-
pecially difficult and time-consuming because the commu-
nications pauses between the individual data packets can
be very long. For example, a sensor will send a value over
an I
2
C bus only once per minute. The oscilloscope memory
typically limits the record length for analyzing errors and
their history to a few milliseconds.
T&M solution
A deep, segmented memory combined with dedicated
trigger conditions solves this problem by permitting the
acquisition of relevant sequences without long pauses.
Equipped with the R&S®RTB-K15 and the R&S®RTM-K15
options, this is exactly what the R&S®RTB2000 and the
R&S®RTM3000 oscilloscopes offer.
The R&S®RTA4000 oscilloscopes come with segmented
memory as standard.
Single shot
Long data sequences are usually acquired in a seamless
single shot. The maximum record length depends on the
available memory and the selected sampling rate. With a
maximum record length of only a few milliseconds, acqui-
sition is often limited to a single protocol packet.
Limiting the acquisition to active signal elements
only
During signal acquisition with segmented memory, the
available memory is divided into segments, each with a
defined number of samples. The user defines the length
of the segments based on the maximum packet length in
the signal. At the trigger point, the signal segment of inter-
est is stored in memory along with the trigger timestamp.
Time periods without activity are not acquired.
If minimal blind time is needed, the fast segmented mode
can be enabled. When this mode is activated, immediate
postprocessing and display of the signal are suppressed,
reducing the blind time between two acquisitions to a
minimum. The acquired data is analyzed at a later time.
Long acquisitions at maximum resolution with the
history function
Fast analysis of
sporadic errors with
segmented memory
and history function
Single-shot versus segmented acquisition
Oscilloscope Segmented memory
R&S®RTB2000 160Msample
R&S®RTM3000 400Msample
R&S®RTA4000 1000Msample
Fast_analysis_ac_en_3607-1220-92_v0300.indd 1 30.11.2017 09:37:00