
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
PHEMT GaAs IC SPDT Switch DC–4 GHz
Features
■ P1 dB +30 dBm Typical @ +3 V
■ IP3 43 dBm Typical @ +3 V
■ Low Insertion Loss (0.3 dB @ 0.9 GHz)
■ Low DC Power Consumption
■ Ultra Miniature Land Grid Array (LGA)
Package
■ PHEMT Process
LGA-6 (1.5 x 1.2 mm)
AS211-334
Description
The AS211-334 is an IC FET SPDT switch in a low cost
miniature LGA package. The AS211-334 features low
insertion loss and positive voltage operation with very low
DC power consumption. This general purpose switch can
be used in a variety of telecommunications applications.
Parameter
Frequency
Min.
Typ.
Max.
Unit
Insertion Loss
0.1–1.0 GHz
0.3
0.5
dB
0.5–2.0 GHz
0.4
0.6
dB
1.0–4.0 GHz
0.8
1.0
dB
Isolation
0.1–1.0 GHz
22
25
dB
0.5–2.0 GHz
20
23
dB
1.0–4.0 GHz
17
20
dB
VSWR
0.1–1.0 GHz
1.4:1
1.6:1
0.5–2.0 GHz
1.3:1
1.5:1
1.0–4.0 GHz
1.6:1
1.8:1
Electrical Specifications at 25°C (0, +3 V)
Preliminary
0.059 (1.50 mm)
± 0.006 (0.15 mm)
0.047
(1.20 mm)
± 0.002
(0.05 mm)
PIN 1
INDICATOR
L
C
L
C
0.019
(0.500 mm) BSC
0.008 (0.20 mm)
± 0.0008 (0.02 mm)
0.013 (0.32 mm)
± 0.002 (0.04 mm)
0.027 (0.50 mm)
± 0.002 (0.05 mm)
SEATING PLANE
0.039 (0.82 mm)
± 0.004 (0.09 mm)
0.014
(0.35 mm)
± 0.0008
(0.02 mm)
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics1
Rise, Fall (10/90% or 90/10% RF)
10
ns
On, Off (50% CTL to 90/10% RF)
20
ns
Video Feedthru
25
mV
Input Power for 1 dB Compression
0/+3 V
0.5–3.0 GHz
+30
dBm
0/+5 V
0.5–3.0 GHz
+34
dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +5 dBm
0/+3 V
0.5–3.0 GHz
+43
dBm
0/+5 V
0.5–3.0 GHz
+50
dBm
Control Voltages
VLow = 0 to 0.2 V @ 20 A Max.
VHigh = +3 V @ 100 A Max. to +5 V @ 200 A Max.
Operating Characteristics at 25°C (0, +3 V)
1. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.