Teledyne T3DSO1000, User Manual, Page: 176 / 227

158 User Manual
To Change the Logic Threshold for Digital Channels
1. Press the Digital button on the front panel to open the DIGITAL function menu.
2. Press the Threshold softkey to enter the THRESHOLDS menu.
3. Press the D0~D7 or D8~D15 softkey, then turn the Universal Knob to select a
logic family preset or select Custom to define your own threshold.
Figure 83 THRESHOLDS Function Menu
Logic Family Threshold Voltage
TTL 1.5V
CMOS 1.65V
LVCMOS3.3 1.65V
LVCMOS2.5 1.25V
Custom Variable from -3V to +3V
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The threshold you set applies to all channels.
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Values greater than the set threshold are high (1) and values less than the set
threshold are low (0).
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If the D0~D7 or D8~D15 softkey is set to Custom , press the Custom softkey, then
turn the Universal Knob to select the desired value and push the knob to
confirm.
To Reposition a Digital Channel
1. Press the Digital button on the front panel to open the DIGITAL function menu and
display the digital channel waveforms.
2. Press the knob control softkey then turn the Universal Knob to select the
channel that you wish to reposition. The selected waveform is highlighted in red.
3. Turn the Universal Knob to move the selected channel position.