ALPHA AS210-321 Datasheet
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
GaAs IC Reflective SPDT with Driver 3–6 GHz
Features
■ TX/RXSwitch for IEEE 802.11a Wireless
LAN Applications
■ Positive CMOS Level Control (0, +3 V)
■ Low Loss (< 1.3 dB)
■ Low DC Power Consumption
■ QFN-12 3 x 3 mm Package
■ Low Cost
■ No External Components Needed
AS210-321
Description
The AS210-321 is a GaAs PHEMT SPDT reflective switch
that has been designed for WLAN TX/RXapplications.This
device has been optimized to provide excellent
performance from 3–6 GHz. The AS210-321’s low
insertion loss make it an ideal choice for the 802.11a and
3.5 GHz fixed wireless LAN applications.
Parameter Frequency Min. Typ. Max. Unit
Insertion Loss 3–4 GHz 1.5 1.8 dB
5–6 GHz 1.0 1.5 dB
Isolation 3–5 GHz 23 27 dB
5–6 GHz 25 29 dB
Return Loss (On State) 3–6 GHz 7.5 12 dB
Electrical Specifications at 25°C (0, +3 V)
Preliminary
Parameter Condition Frequency Min. Typ. Max. Unit
Switching Characteristics Rise, Fall (10/90% or 90/10% RF) 100 ns
On, Off (50% CTL to 90/10% RF) 150 ns
Video Feedthru 25 mV
Input Intermodulation Intercept Point (IIP3) 0/+3 V 5–6 GHz 50 dBm
Control Voltages (C1)C
1
= “0” with @ 700 µA Max. 0 0.4 V
C1= “1” with @ 500 µA Max. 2.4 5.0 V
Supply Voltage (VS) 3.0 5.0 V
Supply Current 400 700 µA
Operating Characteristics at 25°C (0, +3 V)
Characteristic Value
RF Input Power 1 W Max. > 500 MHz
Supply Voltage -0.2 V, +6 V
Control Voltage -0.2 V, +6 V
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C
Absolute Maximum Ratings
GaAs IC Reflective SPDT with Driver 3–6 GHz AS210-321
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
C
1
J
1
N/C
N/C
N/C
V
S
J
2
N/C
N/C
N/C
J
3
N/C
Pin Out (Top View)
Typical Performance Data at 25°C
Return Loss vs. Frequency
Frequency (GHz)
Return Loss (dB)
3.0 3.5 4.0 4.5 5.0 6.05.5
-20
-15
-10
-5
0
Isolation vs. Frequency
Frequency (GHz)
Isolation (dB)
-50
-40
-30
-20
-10
0
3.0 3.5 4.0 4.5 5.0 5.5 6.0
Insertion Loss vs. Frequency
Frequency (GHz)
Insertion Loss (dB)
-2.00
-1.75
-1.50
-1.25
-1.00
-0.75
-0.50
-0.25
0
3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input IP3 vs. Frequency
Frequency (GHz)
Input IP3 (dB)
50
51
52
53
54
55
56
5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9
C
1
J1–J
2
J2–J
3
0 Isolation Insertion Loss
1 Insertion Loss Isolation
Truth Table
Ground is connected to paddle on bottom.
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