Keysight Infiniium DSOS054A, Руководство пользователя

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28 Keysight Infiniium S-Series Oscilloscopes User’s Guide
2
Using the Oscilloscope
AUX OUT
This output signal is selected by the Infiniium oscilloscope application's
Calibration Output dialog box. It can be a DC level, the probe compensation signal
(a square wave used to adjust compensated passive probes), the trigger out
signal, or a demo signal.
10 MHz REF IN 50 Ω
The 10 MHz REF IN 50 Ω BNC connector is used to synchronize the oscilloscope's
horizontal timebase system to a reference clock that you provide.
The clock you provide must meet the following specifications:
•
Input frequency lock range: 10 MHz ±20 ppm
• Amplitude, sine wave input: 356 mVpp (-5 dBm) min to 5 Vpp (+18 dBm) max
• Amplitude, square wave input: 285 mVpp min to 4 Vpp max
• Input impedance: 50 Ω (typical)
To use an external reference clock, connect the external clock to the
10 MHz REF IN 50 Ω BNC connector; then, in the Infiniium oscilloscope
application's Horizontal dialog box ( Setup > Horizontal... ), enable the External
10 MHz Reference Clock.
10 MHz REF OUT 50 Ω
You can use the 10 MHz REF OUT 50 Ω BNC connector to send the oscilloscope’s
10 MHz reference clock output signal to another instrument’s reference clock
input.
The output has these characteristics:
•
Amplitude into 50 Ω (internal or external timebase reference selected): 1.65 ±0.05 Vpp
(8.3 ±0.3 dBm) sine wave
• Frequency accuracy, internal timebase reference selected: 10 MHz ±(12 ppb i
75 ppb/year aging)
• Frequency accuracy, external timebase reference selected: external reference
frequency (input to 10 MHz REF IN 50 Ω )
AUX TRIG IN 50 Ω
You can set up the oscilloscope to trigger on the auxiliary trigger signal connected
to this BNC input.
The input impedance is 50
Ω , and the signal you provide must be 5 Vpp maximum
between -5 V and +5 V.