Preliminary
GaAs IC Reflective SPDT DC–6 GHz
AS209-321
Features
■ Single Broadband Design Covers
802.11a, 802.11b and 3.5 GHz Fixed
Wireless Applications
■ Positive Voltage Control (0, +5 V)
■ Low Insertion Loss Thru 6 GHz
■ High Linearity
■ QFN-12 3 x 3 mm Package
■ Low Cost
Description
Absolute Maximum Ratings
The AS209-321 is a GaAs PHEMT reflective SPDT
Characteristic
Value
switch that has been designed for WLAN T /R
X
X
applications. This device has been optimized to provide
excellent performance from DC–6 GHz.The AS209-321’s
high frequency, low loss and high linearity make it an
ideal choice for 802.11a, 802.11b and 3.5 GHz fixed
wireless LAN applications.
RF Input Power
1 W Max. > 500 MHz
Control Voltage
-0.2 V, +6 V
Operating Temperature
Storage Temperature
-40°C to +85°C
-65°C to +150°C
Electrical Specifications at 25°C (0, +5 V)
Parameter
Frequency
Min.
Typ.
Max.
Unit
Insertion Loss
DC–2 GHz
DC–3 GHz
DC–4 GHz
DC–6 GHz
0.7
0.8
1.1
1.2
1.0
1.2
1.4
1.5
dB
dB
dB
dB
Isolation
DC–2 GHz
DC–3 GHz
DC–4 GHz
DC–6 GHz
30
28
25
20
34
32
29
24
dB
dB
dB
dB
Return Loss (On State)
DC–2 GHz
DC–3 GHz
DC–4 GHz
DC–6 GHz
15
12
10
10
18
15
13
13
dB
dB
dB
dB
Operating Characteristics at 25°C (0, +5 V)
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
30
50
25
ns
ns
mV
Input Intermodulation Intercept Point (IIP3)
Control Voltages
0/+5 V
1–4 GHz
46
dBm
V
C1
V
C1
or V = “0”
or V = “1” with @ 200 µA Max.
0
3.5
0.5
5.0
V
V
C2
C2
Alpha Industries, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email sales@alphaind.com • www.alphaind.com
1
Specifications subject to change without notice. 1/02A