Etrak ® Interface Type; Envelope Voltage Reference; I/Q Output Type; Out Min/Max - R&S SGT100A User Manual

®
R&S SGT100A
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:ADAPtion
eTrak
Selects one of the predefined interface types or allows user-defined settings.
See
cation",
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:ETRak

Envelope Voltage Reference

Defines whether the envelope voltage V
selected supply voltage V
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"
"Single-Ended" ●
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:TYPE
V Min/Max
out
Sets or displays the minimum and maximum values of the peak-to-peak voltage V
voltage on the interface between the circuit board and the DC modulator.
To measure the V
●
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
age V
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:VOUT:MIN
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:VOUT:MAX
User Manual 1176.8674.02 ─ 07
®
Interface Type
Chapter 7.5.2.2, "Signal Parameters for Testing According to the eTrak
on page 148.
cc
●
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.
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.
voltage:
out
Min/Max" values are calculated based on the selected supply volt-
out
Min/Max and enabled
cc
Generation of Envelope Tracking Signals
is set directly or it is estimated from the
out
.
Gain and V Offset in the DC modulator.
cc
Signal Generator Settings
on page 435
on page 435
on page 436
on page 427
R .
in
on page 437
on page 437
®
Specifi-
out
160