GaAs PHEMT Switchable Gain LNA
AL108-338
Typical Performance Data at 25°C
15
Gain (Low)
25
Gain (dB),P
OUT
(dBm)
10
5
0
P
OUT
(dBm)
-5
-10
-15
-25
-20
-15
-10
-5
0
5
10
Gain (dB),P
OUT
(dBm)
20
15
10
Gain (High)
P
OUT
(dBm)
5
0
-25
-20
-15
-10
-5
0
5
10
P
IN
(dBm)
P
IN
(dBm)
Gain and Output Power
(Low Gain mode)
25
High Gain State
20
2.0
1.9
1.8
1.7
Gain and Output Power
(High Gain mode)
Gain (dB)
VSWR
15
Low Gain State
10
5
0
3.0
3.2
3.4
3.6
3.8
4.0
1.6
1.5
1.4
1.3
1.2
1.1
1.0
3.0
Output (Low Gain)
Input (Low Gain)
Output (High Gain)
Input (High Gain)
3.2
3.4
3.6
3.8
4.0
Frequency (GHz)
Frequency (GHz)
Gain vs. Frequency
12
Low Gain
10
8
6
4
2
0
3.1
VSWR vs. Frequency
Evaluation Board
0.850
Voltage
Control
Bias
Voltage
NF (dB)
High Gain
RF
Input
0.018
RF
0.850
Output
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
Frequency (GHz)
Noise Figure vs. Frequency
Dimensions in inches.
2
Alpha Industries, Inc.
[978] 241-7000
•
Fax
[978] 241-7906
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 1/02A
ALPHA [ ALPHA INDUSTRIES ]
