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SDG7000A User Manual
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The reference clock input/output terminals can be cascaded to synchronize multiple devices. For
details, please refer to the section "Multi-Device Synchronization".
6.3.7 Trigger in/Trigger out/Synchronous out
When internal or manual trigger is used for a frequency sweep, burst or other functions, the
trigger signal can be output from this port. When an external trigger is used, a trigger signal is
delivered to the port. It can also be output as a synchronization signal with the same signal
frequency. This enables synchronization with the modulating waveform when modulation is
enabled and synchronization with the carrier when modulation is disabled.
6.3.8 External modulation signal/counter input
When modulation is on, the port is automatically switched to the external modulation input. When
the frequency counter function is on, the port is automatically switched to the counter input,
eliminating the need for manual switching by the user.
6.3.9 Marker output
The output is valid when the specified position of the arbitrary waveform or I / Q signal mark
arrives, or when the specified frequency of the sweep signal arrives.
6.3.10 Digital signal output
The digital outputs are obtained by plugging in a matching Digital Bus Kit (LVDS or LVTTL). The
Digital Bus Kit for LVDS output is passive and requires no power supply. The Digital Bus Kit for
LVTTL output is active and requires a 5V power supply from the USB Host to transfer signals’
level from LVDS level to LVTTL level.
Figure 6-1: SDG7000A and Digital Logic Kit connected to an oscilloscope
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