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Signal Generator Settings
R&S
®
SGT100A
157
User Manual 1176.8674.02 ─ 07
Only if linear shaping is used, the V
CC
Norm can also be directly converted to V
CC
Pow
according to the following formula:
f
Pow
(x) = [f
Norm
(x) - V
in,min
/V
in,max
]*[(V
cc,max
- V
cc,min
)/(1 - V
in,min
/V
in,max
)]
For example, if f
Norm
(x) = V
CC
Norm = 0.178 V, f
Pow
(x) = V
cc
Pow
0
is:
V
cc
Pow
0
= [0.178 - 0.0071/0.2236]*[(1 - 0)/(1 - 0.0071/0.2236)]
V
cc
Pow
0
= 0.151 V
7.5.3 General RF Envelope Settings
To access the related settings and enable the generation of the envelope signal
1. Select the I/Q OUT connector to unfold the "I/Q Analog" block.
2. Select "I/Q Analog > I/Q Analog Settings > General".
3. Select "RF Envelope > On".
4. Select "I/Q Output Type > Differential".
5. Select "Envelope Voltage Adaptation > Auto Power".
Figure 7-11: RF Envelope Settings (Example)
Generation of Envelope Tracking Signals