Preliminary
GaAs PHEMT Switchable Gain LNA
AL108-338
Features
■
For 3.2–3.8 GHz Fixed
Wireless Applications
■
Adjustable Gain
■
+7 dBm Output Power
■
+17 dBm Output IP3
■
2.7 dB Noise Figure
■
Single +5 V Supply
■
Input and Output Matched to 50
Ω
Description
The AL108-338 is an LNA designed for use in
3.2–3.8 GHz WLAN applications. The leadless surface
mount package houses a GaAs PHEMT MMIC that yields
low noise, good 50
Ω
match, high gain and powerful
P
1 dB
performance. Powered by a single 5 V supply, it
also offers a 10 dB gain adjustment range.
Absolute Maximum Ratings
Characteristic
RF Input Power
Bias Voltage
Storage Temperature
Operating Temperature
Value
20 dBm
6 V Max.
-40 to +85°C
-65 to +150°C
Electrical Specifications at 25°C (3.2–3.8 GHz)
Control Voltage = 0 V, Bias Voltage = 5 V, I
D
= 85 mA
Parameter
Gain
Output P
-1 dB
Output IP3
Noise Figure
Reverse Isolation
Input VSWR
Output VSWR
50
Ω
System
50
Ω
System
30
P
IN
= -30 dBm
18
Condition
Frequency
Min.
19
Typ.
21
6
19
2.5
40
1.5:1
1.5:1
2.0:1
2.0:1
2.9
Max.
Unit
dB
dBm
dBm
dB
dB
Control Voltage = 5 V, Bias Voltage = 5 V, I
D
= 85 mA
Parameter
Gain
Output P
-1 dB
Output IP3
Noise Figure
Reverse Isolation
Input VSWR
Output VSWR
50
Ω
System
50
Ω
System
30
P
IN
= -30 dBm
Condition
Frequency
Min.
8
20
Typ.
10
6
23
9
40
1.5:1
1.5:1
2.0:1
2.0:1
10
Max.
Unit
dB
dBm
dBm
dB
dB
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
1
ALPHA [ ALPHA INDUSTRIES ]
