Function Output Commands - Stanford Research Systems DS360 Operating Manual And Programming Reference

Function Output Control Commands
Note: The analog output control commands may be selected only when the analog output type is selected.
If these commands are sent when the unit is in digital mode a "Not Appl" (not applicable)
message will be displayed on the screen and syntax error will occur. The command OUTD0
(analog output) should be sent at the beginning of any program that uses the analog output. Also
be aware that a couple of commands share common mnemonics and values with the digital output
(FUNC, STPE, FSTP).
FUNC (?) i
FREQ (?) x
AMPL (?) x
OFFS (?) x
The FUNC command sets the output function type to i as shown below. The
FUNC? query returns the current function.
i
0
1
2
3
4
The FREQ command sets the frequency to x Hertz. The FREQ? query returns the
current output frequency. The frequency is set and returned with 10mHz
resolution. If the current waveform is NOISE , an error will be generated and the
frequency will not be affected. This command doesn't set the frequencies for 2-
Tones. See TTAF and TTBF commands for 2-Tone frequencies.
The AMPL command sets the output amplitude to x. The value x must consist of
the numerical value and a units indicator. The units may be VP (V
DB (dB in relative mode only, see RELA command below), DM (dBm) or DV
(dBV). For example, the command AMPL1.0DM will set the output to 1.0 dBm.
Setting the amplitude to 0 Volts will produce DC only, (no AC component), with
the output controlled by the OFFS command. For amplitude- offset limits, see
chapter 3.
The AMPL?x query, where x is the units indicator, will return the amplitude in
those units. For example, the AMPL?VR query will return 10.00VR. The
returned units will match the units indicator and the amplitude will be returned in
those units.
This command doesn't set the amplitude for 2-Tones. See TTAA and TTBA
commands for 2-Tone amplitudes.
The OFFS command sets the output DC offset to x volts. The OFFS? query
returns the current value of the DC offset. For amplitude-offset limits see chapter
3.
Remote Programming
Function
Sine
Square
White Noise
Pink Noise
2 Tone
DS360 Ultra Low Distortion Function Generator
4-9
), VR (V ),
pp RMS