Alpha Industries, Inc. [781] 935-5150 •Fax [617] 824-4579 •Email sales@alphaind.com •www.alphaind.com 1
Specifications subject to change without notice. 9/99A
GaAs IC SPST Switch
Reflective DC–10 GHz
Features
■Broadband DC–10 GHz
■Reflective
■7 Lead Hermetic Package
■Capable of Meeting MIL-STD
Requirements6
AS018R1-01, AS018R1-10
Description
The AS018R1-01 is a GaAs IC FET SPST reflective
switch. This device is ideal for microstrip applications and
has optimum broadband performance, since all leads are
RF isolated. This product is useful as a modulator and
switch in high reliability and commercial applications.The
AS018R1-10 is the gullwing version of this device for
surface mount applications.
Parameter1Frequency5Min. Typ. Max. Unit
Insertion Loss2DC–2.0 GHz 0.6 0.8 dB
DC–4.0 GHz 0.8 1.0 dB
DC–8.0 GHz 1.8 2.0 dB
DC–10.0 GHz 2.0 2.5 dB
Isolation DC–2.0 GHz 50 55 dB
DC–4.0 GHz 40 50 dB
DC–8.0 GHz 30 40 dB
DC–10.0 GHz 25 35 dB
VSWR3DC–2.0 GHz 1.2:1 1.3:1
DC–4.0 GHz 1.4:1 1.5:1
DC–8.0 GHz 1.6:1 1.8:1
DC–10.0 GHz 1.8:1 2.0:1
Electrical Specifications at 25°C
1. All measurements made in a 50 Ωsystem, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
3. Insertion loss state.
4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
5. DC = 300 kHz.
6. See Quality/Reliability section.
Parameter Condition Frequency Min. Typ. Max. Unit
Switching Characteristics Rise, Fall (10/90% or 90/10% RF) 3 ns
On, Off (50% CTL to 90/10% RF) 6 ns
Video Feedthru420 mV
Input Power for 1 dB Compression 0/-5 V 0.5–10 GHz 24 dBm
0.001 GHz 16 dBm
Intermodulation Intercept Point (IP3) For Two-tone Input Power 13 dBm 0.5–10 GHz 46 dBm
0.001 GHz 35 dBm
Control Voltages VLow = 0 to -0.2 V @ 20 µA Max.
VHigh = -3 V to -6 V @ 200 µA Max.
Operating Characteristics at 25°C
-01
0.130 (3.30 mm) TYP.
0.063 (1.60 mm) TYP.
0.45 (1.14 mm) TYP.
0.130 (3.30 mm) TYP.
0.220 (5.59 mm)
0.210 (5.33 mm)
0.268
(6.81 mm)
0.252
(6.40 mm)
0.013 (0.33 mm)
0.007 (0.18 mm)
0.007 (0.18 mm)
0.003 (0.08 mm)
0.065
(1.65 mm)
MAX.
0.160
(4.06 mm)
0.120
(3.05 mm)
0.031
(0.79 mm)
MAX.
GaAs IC SPST Switch Reflective DC–10 GHz AS018R1-01, AS018R1-10
2Alpha Industries, Inc. [781] 935-5150 •Fax [617] 824-4579 •Email sales@alphaind.com •www.alphaind.com
Specifications subject to change without notice. 9/99A
Insertion Loss vs. Frequency
Frequency (GHz)
0.5
DC 246810
1.0
1.5
2.0
2.5
Insertion Loss (dB)
3.0
Isolation vs. Frequency
Frequency (GHz)
20
DC246810
30
40
50
60
Isolation (dB)
70
Typical Performance Data
Pin Out
J1
GND
GND
GND
V1
V2
J2
-10
0.215 (5.46 mm)
0.080 (2.03 mm)
TYP.
0.345 (8.76 mm)
± 0.010 (0.25 mm)
0.268 (6.81 mm)
0.252 (6.40 mm)
0.385 (9.78 mm)
± 0.010 (0.25 mm)
0.060 (1.52 mm) TYP.
0.045 (1.14 mm)
TYP.
0.063
(1.60 mm)
TYP.
0.130 (3.30 mm) TYP.
0.013 (0.33 mm)
0.007 (0.18 mm)
0.030 (0.76 mm)
0.015 (0.038 mm)
0.029
(0.74 mm)
TYP.
0.065 (1.65 mm) MAX.
0.007
(0.18 mm)
0.003
(0.08 mm)
Characteristic Value
RF Input Power (RF In) 1 W
Control Voltage (VC) +0.2 V, -7.0 V
Operating Temperature (TOP) -55°C to +125°C
Storage Temperature (TST) -65°C to +150°C
Thermal Resistance (ΘJC)83°C/W
Absolute Maximum Ratings
V1V2J1–J2
0 -5 Isolation
-5 0 Insertion Loss
Truth Table
