Mixed Signal Option (MSO, R&S
RTM-B1)
R&S
®
RTM20xx
208
User Manual 1317.4726.02 ─ 01
12 Mixed Signal Option (MSO, R&S
RTM-B1)
The Mixed Signal Option R&S
RTM-B1 adds logic analyzer functions to the classical
oscilloscope functions. Using the MSO option, you can analyze and debug embedded
systems with mixed-signal designs that use analog signals and correlated digital signals
simultaneously.
12.1 About MSO
The Mixed Signal Option provides 16 digital channels grouped in two logic probes (pods)
with 8 channels each. The instrument ensures that analog and digital waveforms are
timealigned and synchronized so that critical timing interactions between analog and
digital signals can be displayed and tested. The automatic alignment compensates the
skew between the probe connectors of the analog channels and the probe boxes of the
digital channels.
Digital channels and parallel buses
Each digital channel can be displayed on the screen and used as trigger source of some
trigger types. A pod of digital signals can be saved as reference waveform.
Digital channels may be grouped and displayed as a parallel bus. Up to 4 parallel buses
can be configured; and two bus types are supported: clocked bus and unclocked bus.
Trigger possibilities
One of the digital channels can be used as trigger source for edge and width triggers.
However, digital channels are not selectable if the B-trigger is enabled. Using the pattern
trigger, you can trigger on parallel buses and logical combinations of analog and digital
channels. For all digital trigger sources, the trigger level is the logical threshold. Addi-
tionally, you can define a trigger holdoff time for the edge and width trigger.
Cursor measurements
Cursor measurements can be performed on single digital channels and on pods. As for
all measurements, the instrument provides only sources that are active and appropriate
for the selected measurement type.
The sources D0 to D15 are available for time, ratio X, count, duty ratio and burst width
measurements. The pods D0...D7 and D8...D15 are available for V-marker measure-
ments, which delivers the 8-bit value of the pod.
Automatic measurements and statistics
Automatic time and count measurements can be performed on active digital channels.
As for all measurements, the instrument provides only sources that are active and appro-
priate for the selected measurement type.
About MSO
