370 Agilent X-Series Signal Generators SCPI Command Reference
Digital Signal Interface Module Commands
Digital Subsystem—Option 003 and 004 ([:SOURce])
:DIGital:DATA:OUTPut:STYPe
Supported N5172B/82B with option 003
:DIGital:DATA:OUTPut:STYPe IQ|IF
:DIGital:DATA:OUTPut:STYPe?
This command selects the output format for the IQ data. The IQ selection outputs digital I and Q
data. Whereas the IF (intermediate frequency) selection modulates the I and Q data onto the IF
frequency. The IF is calculated as 1/4 the clock sample rate. This command is valid only for the
N5102A output mode.
IQ This choice outputs I and Q digital data.
IF This choice outputs a modulated signal.
Example
:DIG:DATA:STYP IF
The preceding example sets the I and Q output data to modulate the intermediate frequency.
*RST IQ
Key Entry
Signal Type
:DIGital:DATA:POLarity:IQ
Supported N5172B/82B with option 003 or 004 or both
:DIGital:DATA:POLarity:IQ POSitive|NEGative
:DIGital:DATA:POLarity:IQ?
This command selects the logic level for I and Q data. Positive selects a high logic level at the output
as a digital one and negative selects a low logic level at the output as a digital one.
POS This choice selects a logic high level as digital one.
NEG This choice selects a logic low level as a digital one.
Example
:DIG:DATA:POL:IQ NEG
The preceding example sets low level logic.
*RST POS
Key Entry
IQ Polarity
:DIGital:DATA:QNEGate
Supported N5172B/82B with option 003 or 004 or both
:DIGital:DATA:QNEGate OFF|ON|0|1
:DIGital:DATA:QNEGate?
This command enables or disables the negation of the Q data sample. Negation changes the sample by
expressing it in two's complement form, multiplying by negative one, and converting back to the
selected numeric format.
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