The FSx_IQ_Source model downloads data from any of the R&S FSIQ / FSP / FSU / FSQ Spectrum and Signal Analyzers into ADS.
It outputs IQ data as recorded from the detector.
Name |
Description |
Default |
Unit |
Type |
RunRFSetup |
RF parameters shall be set: 1, 0 |
1 |
-- |
bool |
RunPreSim |
Sampling is done before the simulation: 1, 0 |
1 |
-- |
bool |
RunPostSim |
Sampling is done after the simulation: 1, 0 |
0 |
-- |
bool |
RunPreset |
Instrument is presented: 1, 0 |
1 |
-- |
bool |
LocalFileName |
Name of the copy of the IQ data file (extension-free) 1) |
'IQ_In' |
-- |
string |
LocalFileType |
Type for file format to store on disc: TIM=0, SIG=1 |
1 |
-- |
int |
RFFrequency |
RF Frequency |
1 GHz |
Hz |
real |
RFLevel |
RF Level |
-30 dBm |
dBm |
real |
RFRefOscSource |
Source for 10 MHz reference frequency: INT=0, EXT=1 |
0 |
-- |
int |
IQSampleClock |
Sampling rate for the data acquisition 2) |
1 MHz |
Hz |
real |
IQSampleLength |
Number of IQ samples to record 3) |
1024 |
-- |
int |
IQPreTrigSamples |
Number of measurement values to be recorded before the trigger point |
0 |
1 |
int |
IQFilter |
Analog filters bandwidth in front of the A/D converter: 300 kHz, 1 MHz, 3 MHz, 10 MHz, 20 MHz, 50 MHz 4) |
3 MHz |
Hz |
real |
IQAvgOn |
Averaging for IQ data: 1, 0 5) |
0 |
-- |
bool |
IQAvgCount |
Average count for IQ capture 5) |
1 |
1 |
int |
IQSource |
Source for the IQ data: RF=0, BB=1 6) |
0 |
-- |
int |
IQBBDither |
Baseband Dithering: 1, 0 6) |
0 |
-- |
bool |
IQBBLowPass |
Baseband 36 MHz lowpass filter activated: 1, 0 6) |
0 |
-- |
bool |
IQBBBalanced |
Baseband IQ mode balanced: 1, 0 6) |
0 |
-- |
bool |
IQBBImp |
Baseband Impedance of the IQ inputs: 50 Ω=0, high=1 6) |
0 |
-- |
int |
TriggerMode |
Mode for triggering: IMM=0, EXT=1, IFP=2, RFP=3 7) |
0 |
-- |
int |
TriggerLevel |
Level for IFP and RFP trigger |
-30 dBm |
dBm |
real |
Name |
Description |
Signal Type |
Pin "I" |
I data from the data acquisition |
Scalar Floating Point |
Pin "Q" |
I data from the data acquisition |
Scalar Floating Point |
1) |
If no filename is entered, no copy is generated on the local PC and the file is only downloaded to the ARB. |
2) |
The sampling rate can be set
|
3) |
The number of samples can be set
|
4) |
20 MHz and 50 MHz filters are available with FSQ only. |
5) |
Only available for FSU and 32 MHz sampling rate and IQPreTriggerSamples >= 0. |
6) |
Baseband only available with FSQ and option FSQ-B71. |
7) |
RFP for FSP with option FSP-B6. |
1. |
RunPreSim and RunPostSim determine if the communication with the instrument shall be done before and/or after the simulation of the circuit. |
2. |
If RunPreset is selected, the command "SYST:PRES" (equivalent to pressing the PRESET key at the frontpanel) will be executed before other settings are performed on the instrument. |
3. |
If RunRFSetup is selected, the settings for RFFrequency, RFLevel, RFRefOscSource and RFOn will be executed. |
4. |
The data from the instrument are always stored as SIG files with the name "FSx_IQ_IN_I.SIG" and "FSx_IQ_IN_Q.SIG" in the "\data" directory of the current project. |
5. |
IQSampleClock and IQSampleLength must be entered according to the valid value range as described in the table above. |
6. |
IQPreTriggerSamples specified the number of samples between the trigger event and the start of the IQ data recording itself. |
7. |
If IQScaleMode is set to VOLT, IQ input samples are assumed to be voltage values. An overrange of the values will result in an error. If MAX is selected, IQ input samples will be scaled to fit the value range of the D/A converter with maximum dynamic range. |
8. |
IQAvgOn and IQAvgCount switches the averaging of IQ samples within the FSU on or off. If averaging is selected, IQ data are averaged inside the instrument with phase synchronized sampling according to the external trigger. |
9. |
If an FSQ with option FSQ-B71 is used, IQSource can be switched between RF and Baseband (BB) source. For baseband inputs, additional options (IQBBDither , IQBBLowPass , IQBBBalanced and IQBBImp). |
10. |
The TriggerMode can be switched between Immediate (IMM), External (EXT - Trigger provided by the backpanel BNC connector), IF Power (IFP - Standard Bandwidth Detector) and RF Power (RFP - Bandwidth Extended Detector for FSP). |
This component requires the license "Design Environment" (ads_schematic) for placing the component.