Instructions

Logic Analyzer (R&S RTH-B1 MSO)
R&S
®
Scope Rider RTH
255User Manual 1326.1578.02 ─ 15
You can set the digital threshold in several ways:
●
The same threshold and hysteresis are used for all logic channels: Enable "Thresh-
old" and set the values for channels D0 - D3, and D4 - D7.
●
Different thresholds and hysteresis are used for individual channel groups: Disable
"Threshold" and set the threshold and hysteresis for each group.
You can select the threshold voltages for various types of integrated circuits in the list,
or set a user-defined value.
"TTL"
1.4 V
"ECL"
-1.3 V
"CMOS"
2.5 V
"GND"
0 V (for CAN channels, requires option R&S RTH-K3)
"CAN"
2 V (for CAN channels, requires option R&S RTH-K3)
"7 V Supply"
7 V (for LIN channels, requires option R&S RTH-K3)
"12 V Supply"
12 V (for LIN channels, requires option R&S RTH-K3)
"18 V Supply"
18 V (for LIN channels, requires option R&S RTH-K3)
Remote command:
LOGic:GROup<m>:TECHnology on page 491
LOGic:GROup<m>:USER on page 491
Hysteresis
Hysteresis avoids the change of signal states due to noise oscillation around the
threshold level. Set a small hysteresis for clean signals, and large hysteresis for noisy
signals.
Threshold
Logic 0 Logic 1 Logic 0
Hysteresis
Remote command:
LOGic:GROup<m>:HYSTeresis on page 492
Deskew
Enables deskewing.
Deskew compensates delays that are known from the circuit specifics or caused by the
different length of cables. The skew between the probe boxes of the digital channels
and the probe connectors of the analog channels is automatically aligned by the instru-
ment.
Select Channel, Deskew
You can set the deskew for all channels of a logic probe at once, or for each logic
channel separately.
Logic Analyzer Settings