Preliminary
GaAs IC 25 dB Voltage
Variable Attenuator 2.7–4.0 GHz
AV141-321
Features
■
Power Control for 3.5 GHz Fixed
Wireless Applications
■
Minimum 25 dB Attenuation
■
Positive 0.2–1.2 V Control Voltage
■
QFN-12 3 x 3 mm Package
■
Low Cost
■
No External Components Needed
Description
The AV141-321 is a GaAs IC PHEMT voltage variable
attenuator that has been designed for WLAN applications.
Operating from 2.7–4.0 GHz, the AV141-321 is ideal for
low cost applications such as 3.5 GHz fixed wireless LAN
power control applications.
Absolute Maximum Ratings
Characteristic
RF Input Power
Control Voltage
Operating Temperature
Storage Temperature
Value
1 W Max. > 500 MHz
-0.2 V, +6 V
-40°C to +85°C
-65°C to +150°C
1. All measurements made in a 50
Ω
system, unless otherwise specified.
2. For worst case state.
Electrical Specifications at 25°C
Parameter
Insertion Loss (V
C
= 1.2 V)
Maximum Attenuation (V
C
= 0.2 V)
VSWR — All Ports
Frequency
2.7–4.0 GHz
2.7–4.0 GHz
2.7–4.0 GHz
25
Min.
Typ.
0.7
30
1.5
1.8
Max.
1.0
Unit
dB
dB
Operating Characteristics at 25°C (0, +1.2 V)
Parameter
Switching Characteristics
Condition
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
2.7–4.0 GHz
2.7–4.0 GHz
0.2
Frequency
Min.
80
Typ.
50
150
25
13
20
1.2
Max.
Unit
ns
ns
mV
dBm
dBm
V
Maximum Input Power
for < 1 dB Attenuation Variation
Input 3rd Order Intercept Point (IIP3)
Control Voltage
1. All measurements made in a 50
Ω
system, unless otherwise specified.
2. For worst case state.
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 ]
