DEMO-ALM-38140 Datasheet, PDF (5/16 Pages) Broadcom Corporation. – 50MHz – 4GHz PIN Diode Variable Attenuator Module

ALM-38140 Typical Broadband Performance at 25°C
(Vsupply = 2.7V, Vctrl = 1V - 5V)
0.00
-10.00
-20.00
-30.00
-40.00
-50.00
0
1000
2000
3000
Frequency (MHz)
Figure 1. S21 Vs Frequency as function of Vctrl
Vctrl=5.0V
Vctrl=4.0V
Vctrl=3.0V
Vctrl=2.0V
Vctrl=1.5V
Vctrl=1.2V
Vctrl=1.0V
4000
ALM-38140 Typical Over-Temperature Broadband Performance
(Vsupply = 2.7V, Vctrl = 1V & 5V)
0
25°C
-10
85°C
-40°C
-20
-30
-40
0
1000
2000
3000
4000
Frequency (MHz)
0
-10
-20
25°C
-30
85°C
-40°C
-40
0
1000
2000
3000
4000
Frequency (MHz)
Figure 2. S11 (Return Loss) at Vctrl =1V vs Frequency vs Temperature
Figure 3. S11 (Return Loss) at Vctrl =5V vs Frequency vs Temperature
0
-10
-20
25°C
-30
85°C
-40°C
-40
0
1000
2000
3000
4000
Frequency (MHz)
Figure 4. S22 (Return Loss) at Vctrl=1V vs Frequency vs Temperature
0
-10
-20
25°C
-30
85°C
-40°C
-40
0
1000
2000
3000
4000
Frequency (MHz)
Figure 5. S22 (Return Loss) at Vctrl=5V vs Frequency vs Temperature
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