DEMO-ALM-38140 Datasheet, PDF (8/16 Pages) Broadcom Corporation. – 50MHz – 4GHz PIN Diode Variable Attenuator Module

ALM-38140 Typical Over-Temperature With Phase Compensation Coil Performance
(Vsupply = 2.7 V, Vctrl = 1 V & 5 V)
0.00
-10.00
-20.00
-30.00
Vctrl=5.0V
Vctrl=4.0V
Vctrl=3.0V
Vctrl=2.0V
Vctrl=1.5V
Vctrl=1.2V
-40.00
Vctrl=1.0V
-50.00
800
900
1000
1100
1200
Frequency (MHz)
Figure 17. S21 Vs Frequency as function of Vctrl at Fc= 1GHz
0.00
-10.00
-20.00
-30.00
Vctrl=5.0V
Vctrl=4.0V
Vctrl=3.0V
Vctrl=2.0V
Vctrl=1.5V
Vctrl=1.2V
-40.00
Vctrl=1.0V
-50.00
1800
1900
2000
2100
2200
Frequency (MHz)
Figure 18. S21 Vs Frequency as function of Vctrl at Fc= 2GHz
0.00
-5.00
-10.00
-15.00
-20.00
-25.00
-30.00
-35.00
0
25°C
85°C
-40°C
500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Figure 19. S11 (Return Loss) at Vctrl =1V vs Frequency vs Temperature
0.00
-5.00
-10.00
-15.00
-20.00
-25.00
-30.00
-35.00
0
25°C
85°C
-40°C
500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Figure 20. S11 (Return Loss) at Vctrl =5V vs Frequency vs Temperature
0.00
-5.00
-10.00
-15.00
-20.00
-25.00
-30.00
-35.00
0
25°C
85°C
-40°C
500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Figure 21. S22 (Return Loss) at Vctrl =1V vs Frequency vs Temperature
0.00
-5.00
-10.00
-15.00
-20.00
-25.00
-30.00
-35.00
0
25°C
85°C
-40°C
500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Figure 22. S22 (Return Loss) at Vctrl =5V vs Frequency vs Temperature
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