GW Instek GDS-2000A series Option User Manual - Manual (Page 78)

GDS-2000A Series Options Manual
78
Trigger Threshold
Levels The trigger threshold levels for the can assigned
from a selected number of preset logic levels or a
user-defined threshold level can be set.
Note
The threshold levels set with the logic bus menu
will replace the logic levels that are set in the Logic
Analyzer menu (page 38).
1. Press Thresholds from the bottom
menu.
2. Press Select from the side menu
and choose a group of channels.
Group D0~D3, D4~D7, D8~D11,
D12~D15
3. Press Choose Preset to select a pre-
set logic threshold.
Logic Type Threshold
TTL 1.4V
5.0V CMOS 2.5V
3.3V CMOS 1.65V
2.5V CMOS 1.25V
ECL -1.3V
PECL 3.7V
0V 0V
4. Press Threshold to set a user
defined threshold.
Range ± 10V