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250 mW Power Amplifier with T/R and Diversity Switches
AM55-0003
Specifications Subject to Change Without Notice
V 2.0
M/A-COM Inc.
s
1011 Pawtucket Boulevard, Lowell, MA 01853 USA
s
Telephone: 800-366-2266
3
Power Amplifier Small Signal
Performance1
Power Amplifier CW Performance at
Various Supply Voltages1
1. All data measured at TA = +25°C and VG1, VG2 and VG3 adjusted for first stage quiescent current of 20 mA, second stage current of 70 mA
and third stage current of 90 mA, respectively.
LINEAR GAIN, V
DD1 = VDD2 = VDD3
2.0
2.2
2.4
2.6
2.8
3.0
35
30
25
20
15
10
FREQUENCY (GHz)
INPUT MATCH
2.0
2.2
2.4
2.6
2.8
3.0
-5
-10
-15
-20
-25
-30
FREQUENCY (GHz)
OUTPUT MATCH
2.0
2.2
2.4
2.6
2.8
3.0
0
-5
-10
-15
-20
FREQUENCY (GHz)
POWER ADDED EFFICIENCY (%)
@ 2.45 GHz, V
DD1 = VDD2 = VDD3
-19
-14
-9
-4
1
50
40
30
20
10
0
INPUT POWER (dBm)
GAIN COMPRESSION @ 2.45 GHz, V
DD1 =VDD2 = VDD3
-19
-14
-9
-4
1
0
-1
-2
-3
-4
-5
-6
-7
INPUT POWER (dBm)
POWER OUTPUT @ 2.45 GHz, V
DD1 = VDD2 = VDD3
-19
-14
-9
-4
1
30
25
20
15
10
5
POWER INPUT (dBm)
5 V
4 V
6 V
3 V
3 V
4 V
6 V
5 V
6 V
3 V
4 V
5 V
6 V
3 V
5 V
6 V
5 V
4 V
3 V
6 V
5 V
3 V
4 V
4 V
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