Signal Generator Settings
R&S
®
SGT100A
160
User Manual 1176.8674.02 ─ 07
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:ADAPtion
eTrak
®
Interface Type
Selects one of the predefined interface types or allows user-defined settings.
See
Chapter 7.5.2.2, "Signal Parameters for Testing According to the eTrak
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:ETRak
Envelope Voltage Reference
Defines whether the envelope voltage V
out
is set directly or it is estimated from the
selected supply voltage V
cc
.
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:VREF
I/Q Output Type
Selects the type of output signal.
The provided parameters in the "I/Q Analog Outputs" dialog depend on the selected
output mode.
"Differential"
●
If "RF Envelope > On"
The inverted envelope signal
Ē
is output at the I BAR connectors.
●
If "RF Envelope > Off"
The analog I/Q signal components are output at the I/Q BAR con-
nectors.
"Single-Ended"
●
If "RF Envelope > On"
The envelope signal E is output at the I connectors.
●
If "RF Envelope > Off"
Single-ended output at the I/Q connectors.
You can define a bias between the output signal and ground.
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:TYPE
V
out
Min/Max
Sets or displays the minimum and maximum values of the peak-to-peak voltage V
out
voltage on the interface between the circuit board and the DC modulator.
To measure the V
out
voltage:
●
Use a suitable probe, i.e. use a differential probe if a "Wire to Wire" termination is
used and a single ended probe otherwise
●
Measure at the circuit board after the termination impedance
.
If estimated, the "V
out
Min/Max" values are calculated based on the selected supply volt-
and enabled
in the DC modulator.
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:VOUT:MIN
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:VOUT:MAX
Generation of Envelope Tracking Signals