Remote Interface Reference 4
Keysight 33210A User’s Guide 191
FREQuency {<frequency>|MINimum|MAXimum}
FREQuency? [MINimum|MAXimum]
Set the output frequency. MIN selects the lowest frequency allowed for the
selected function and MAX selects the highest frequency allowed. The default is
1 kHz for all functions. The FREQ? query returns the frequency setting in hertz for
the function currently selected.
– Function Limitations: The frequency limits are function dependent, as shown
in the above table. If you send a command specifying a frequency that is not in
the appropriate range for the current function, an error will occur. For example,
if the current function is “ramp” and you send the command FREQ 10 MHz, a
“Data out of range” error is generated and the frequency is set to 100 kHz,
which is the maximum for a ramp waveform.
–
Duty Cycle Limitations:
For square waveforms, the function generator
may not
be able to use the full range of duty cycle values at higher frequencies as
shown below.
20% to 80% (to 5 MHz)
40% to 60% (to 10 MHz)
If you change to a frequency that cannot produce the current duty cycle
, the duty
cycle is automatically adjusted to the maximum value for the new frequency.
For example, if you currently have the duty cycle set to 70% and then change
the frequency to 6 MHz, the function generator will automatically adjust the
duty cycle to 60% (the upper
limit for this frequency).
From the remote
interface, a “Settings conflict
”
error will be generated and the duty cycle will
be adjusted as described.
Function Minimum Frequency Maximum Frequency
Sine
Square
Ramp
Pulse
Noise, DC
Arbs
1 mHz
1 mHz
1 mHz
1 mHz
Not Applicable
1 mHz
10 MHz
10 MHz
100 kHz
5 MHz
Not Applicable
3 MHz
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