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12
Digital Channel
DHO900 series oscilloscope provides a standard logic analyzer (LA) function with 16
digital channels. The default channel label is D0-D15. The oscilloscope compares the
voltages acquired in each sample with the preset logic threshold. If the voltage of the
sample point is above the threshold, it will be stored as logic 1; otherwise, it will be
stored as logic 0. The oscilloscope displays the logic levels (1s and 0s) in a graphic
way for you to easily detect and analyze the errors in circuit design (hardware design
and software design).
You can enter the LA menu in the following ways.
• Press the front-panel
key to enter the menu.
• Click or tap the "LA" label at the bottom of the screen to enter the menu.
Figure 12.1 LA Menu
Before using the digital channels, connect the oscilloscope to the device under test
(DUT) using the optional PLA2216 active logic probe. To cater to different application
scenarios, PLA2216 provides two methods to connect the signal under test. For
details, refer to
PLA2216 Active Logic Probe User Guide
.
CAUTION
The digital channel input terminal does not support hot plugging. Do not insert or pull
out the logic probe when the instrument is powered on.
Digital Channel
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved. DHO900 User Guide
161
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