Signal Generator Settings
R&S
®
SGT100A
163
User Manual 1176.8674.02 ─ 07
The termination influences the way an enabled
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:TERMination
Bipolar Input ← DC Modulator characteristics
If the "
> Differential", enables the instrument to generate a bipolar sig-
nal.
The envelope signal E swings above and below the inverted envelope signal E BAR;
the R&S
SGT calculates and applies a suitable envelope
automatically, see
Figure 7-12: Effect of a "Bipolar Input > On"
This parameter influences the lower limit of the supply voltage V
cc
.
The generated signal is conform with the MIPI
®
Alliance specification "Specification for
Analog Reference Interface for Envelope Tracking".
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:BINPut
V
pp
Max ← DC Modulator characteristics
Sets the maximum value of the peak-to-peak driving voltage V
pp
of the used external
DC modulator.
The V
pp
limits:
●
The value range of the supply voltage
V
pp
≥
V
CC
Max
●
> Differential, the voltage of the generated envelope signal
as follows:
V
pp
≥
V
out
Max[E] - V
out
Max[E BAR], where [E] and [E BAR] refer to the envelope
signal and the inverted envelope signal.
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:VPP[:MAX]
Gain ← DC Modulator characteristics
Sets the gain of the used external DC modulator.
Remote command:
[:SOURce<hw>]:IQ:OUTPut[:ANALog]:ENVelope:GAIN
Generation of Envelope Tracking Signals