Rohde & Schwarz RTE - Parallel Buses - Digital Probes

Mixed signal option (MSO, R&S RTE-B1)
R&S
®
RTE
904User Manual 1326.1032.02 ─ 20
Threshold
Logic 0 Logic 1 Logic 0
Hysteresis
By default, same threshold and hysteresis value are used for all digital channels and all
parallel buses: "Coupling" is enabled.
You can also set different thresholds for the individual channel groups: Disable "Cou-
pling" and set the threshold value for each group. As long as the buses are disabled,
you can set different thresholds for each bus. Active buses use the same threshold and
hysteresis values, the settings of the last activated bus take effect.
The range of threshold levels and the minimum voltage swing is given in the data
sheet.
"Threshold"
Enter the value directly in the field.
"Technology"
Selects the threshold voltage for various types of integrated circuits
from a list and applies it to all digital channels. The value is set to
"Manual" if a user-defined threshold was entered directly.
"Coupling"
Sets the threshold and the hysteresis for all digital channels and all
buses to the same value.
"Hysteresis"
Defines the size of the hysteresis. Three values are available:
●
Normal: the instrument sets a small value suitable for the signal
and its settings. Use this setting for clean signals.
●
Maximum: the instrument sets the maximum value that is possible
and useful for the signal and its settings. Use this setting for noisy
signals.
●
Robust: sets different hysteresis values for falling and rising
edges to avoid an undefined state of the trigger system. Use this
setting for very noisy signals.
Remote command:
BUS<m>:PARallel:TECHnology on page 1905 (all buses)
DIGital<m>:TECHnology on page 1901 (bus1)
BUS<m>:PARallel:THReshold<n> on page 1904 (all buses)
DIGital<m>:THReshold on page 1901 (bus1)
BUS<m>:PARallel:THCoupling on page 1905 (all buses)
DIGital<m>:THCoupling on page 1902 (bus1)
BUS<m>:PARallel:HYSTeresis<n> on page 1906 (all buses)
DIGital<m>:HYSTeresis on page 1902 (bus1)
14.1.2 Parallel buses - digital probes
Access: "Analysis" menu > "Parallel buses" > "Digital Probes" tab
Digital channels and parallel buses