DEMO-ALM-38140 Datasheet, PDF (9/16 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
25°C
85°C
-20.00
-40°C
-30.00
-40.00
-50.00
-60.00
0
500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Figure 23. S21 at Vctrl=1V (Attenuation) vs Frequency vs Temperature
0.00
-0.50
-1.00
-1.50
-2.00
-2.50
-3.00
-3.50
-4.00
-4.50
0
25°C
85°C
-40°C
500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Figure 24. S21 at Vctrl=5V (Insertion Loss) vs Frequency vs Temperature
20.00
0.00
-20.00
-40.00
-60.00
0.00
25°C
85°C
-40°C
10.00 20.00 30.00 40.00 50.00
Attenuation (dB)
Figure 25. Phase shift vs Attenuation vs Temperature at 900MHz
40.00
20.00
0.00
25°C
85°C
-40°C
-20.00
0.00
10.00 20.00 30.00 40.00 50.00
Attenuation (dB)
Figure 26. Phase shift vs Attenuation vs Temperature at 1900MHz
0.00
-5.00
-10.00
-15.00
-20.00
-25.00
-30.00
0.00
10.00
25°C
85°C
-40°C
20.00 30.00 40.00 _50.00
Attenuation (dB)
Figure 27. Return loss vs Attenuation vs Temperature at 900MHZ
0.00
-5.00
-10.00
-15.00
-20.00
-25.00
-30.00
0.00
10.00
25°C
85°C
-40°C
20.00 30.00 40.00 50.00
Attenuation (dB)
Figure 28. Return loss vs Attenuation vs Temperature at 1900MHZ
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