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SDS2000X HD Series Digital Oscilloscope User Manual
i n t . s i g l e n t . c o m 6 1
Apply to
With this setting, some common functions such as Trigger, FFT, Simple Measure, Cursor, Search,
DVM, Histogram, Mask Test, Counter, and AWG can be quickly applied to the selected channel. Once
a function is specified, it will switch directly to the function menu and automatically set that channel
as the source.
Impedance
1 MΩ: When a passive probe with high impedance is connected, the impedance must be set to
1 MΩ, otherwise the signal will not be detected.
50 Ω: Suitable for high-frequency signals transmitted through 50 Ω coaxial cables or active
probes. This can minimize the amplitude distortion caused by impedance mismatching.
Warning: The 50 Ω input setting is not a high-power input. Damage can occur
if the input exceeds the published specifications. See the datasheet
for more details.
Unit
Voltage unit "V" or current unit "A”. When using the current probe, the unit should be set to "A".
Deskew
Due to the skew between channels, cables, or probes, the delay of signals passing through different
measurement paths may be inconsistent. For example, two coaxial cables with a 1-inch difference in
length could introduce a skew of more than 100 ps. In some scenarios (e.g. measuring the setup/hold
time between clock and data), it may be necessary to compensate for the skew between channels.
The method of compensation: Probe the same signal simultaneously using two channels (including
the cables or probes that you intend to use for measurements) and adjust the deskew parameter of
one channel until the waveforms of the two channels observed on the screen coincide horizontally.
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