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AWG2021 Service Manual
H Autostep Mode. Autostep mode uses the waveform file list and output
parameter information in an autostep file. In this mode, the AWG2021
outputs one waveform when a trigger occurs, just as in Waveform
Advance mode. The difference is that in this mode, the SETUP output
parameters change with the waveform data. Also, the operation mode for
each step is triggered; the AWG2021 outputs each waveform or sequence
output once. Output then stops until the next trigger event. After the
AWG2021 generates each waveform in the autostep file, it does not start
over with the first file listed. To generate the waveform files again, you
must select the autostep file again for execution. Use the autostep editor
to modify the autostep file.
3. Set the trigger (gate) conditions for the external trigger (gate) source.
The external trigger (gate) signal is input from the TRIGGER INPUT
connector on the front panel. This connector allows external signals with a
maximum input voltage of 10 V
maximum input voltage of 5 V
When an operating mode other than Cont is selected, the AWG2021 displays
a side menu for selecting the trigger (gate) conditions for the external trigger
(gate) source. The following describes each of these items:
H Slope. This item sets the slope for external trigger signals. To select a
positive or negative slope, push the side menu Slope button. For a
positive slope, the AWG2021 applies the trigger at the rising edge of the
external trigger signal; for a negative slope, the trigger is applied at the
falling edge of the external trigger signal.
H Polarity (Gated Mode). This item sets the polarity for the gate that
outputs the waveform or sequence based on the level of the external gate
signal. To set the polarity, push the side menu Polarity button. For a
positive polarity, the AWG2021 outputs the waveform or sequence
waveform while the gate signal level is higher than the gate level
parameter set with the side menu Level item. For negative polarity,
waveform output occurs while the gate signal level is lower.
H Level. This item sets the external trigger (gate) signal level. To set this
parameter, push the side menu Level button, then use the numeric keys
or the general purpose knob to change the value. The trigger (gate) level
can be set in steps of 0.1 V within the range from –5.0 V to +5.0 V.
H Impedance. This item sets the input impedance for the external trigger
(gate) source to either 50 W or 1 MW. To select the value for this
parameter, push the side menu Impedance button.
into a 1 MW input impedance, and a
p-p
into a 50 W input impedance.
RMS
Operating Instructions
2-19
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