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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

161

Rigol DHO914 User Manual

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