DATA SHEET
AS338-12, AS338-12LF: GaAs IC SPDT Nonreflective Switch
300 kHz–2.5 GHz
Features
Low DC power consumption
●
High isolation (40 dB @ 0.9 GHz)
●
Nonreflective
●
Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C
per JEDEC J-STD-020
●
Pin Out
V
S
10 kΩ
J
1
C
BL
V
1
V
2
C
BL
50
J
2
1
2
3
8
7
6
C
BP
GND
Description
The AS338-12 is a low-cost IC FET SPDT nonreflective switch in
a plastic SOIC-8 package for commercial applications. The switch
operates with -5, 0 V or 0, +5 V when “floated” as shown on the
following page. This general-purpose SPDT switch is used in var-
ious telecommunications applications.
C
BP
50
GND
External components shown are for positive voltage operation only.
C
BL
= 100 pF, C
BP
= 1000 pF for operation >500 MHz.
C
BL
J
3
4
5
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Electrical Specifications at 25 °C (0, -5 V)
Parameter
(1)
Insertion Loss
(2)
Frequency
300 kHz–0.5 GHz
300 kHz–1.0 GHz
300 kHz–2.0 GHz
300 kHz–2.5 GHz
300 kHz–0.5 GHz
300 kHz–1.0 GHz
300 kHz–2.0 GHz
300 kHz–2.5 GHz
300 kHz–0.5 GHz
300 kHz–1.0 GHz
300 kHz–2.5 GHz
43
36
27
23
Min.
Typ.
0.5
0.6
0.7
1.2
46
39
30
26
1.2:1
1.2:1
1.3:1
1.3:1
1.4:1
1.5:1
Max.
0.7
0.8
0.9
1.4
Unit
dB
dB
dB
dB
dB
dB
dB
dB
Isolation
VSWR
(3)
1. All measurements made in a 50
Ω
system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
3. Input/output.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200256 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2006
1
DATA SHEET • AS338-12, AS338-12LF
Operating Characteristics at 25 °C (0, -5 V)
Parameter
Switching characteristics
Rise, fall
On, off
Video feedthru
Input power for 1 dB compression
Intermodulation intercept point
Thermal resistance
Control voltages
V
LOW
= 0 to 0.2 V @ 20 µA max.
V
HIGH
= -5 V @ 50 µA to -8 V @ 200 µA max.
For two-tone input power 5 dBm
Condition
10/90% or 90/10% RF
50% CTL to 90/10% RF
T
RISE
= 1 ns, BW = 500 MHz
0.5–2.5 GHz
0.05 GHz
0.5–2.5 GHz
0.05 GHz
Frequency
Min.
Typ.
8
30
25
28
23
46
40
25
Max.
Unit
ns
ns
mV
dBm
dBm
dBm
dBm
°C/W
Typical Performance Data (0, -5 V)
2.0
60
50
Insertion Loss (dB)
1.5
Isolation (dB)
J
1
–J
3
40
J
1
–J
2
30
1.0
0.5
0
0
0.5
1.0
1.5
2.0
2.5
20
0
1
2
3
4
5
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
2.00
Isolation vs. Frequency
1.75
VSWR
1.50
1.25
1.00
0
0.5
1.0
1.5
2.0
2.5
Frequency (GHz)
VSWR vs. Frequency
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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June 8, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200256 Rev. B
DATA SHEET • AS338-12, AS338-12LF
Truth Table
Negative Operation
V
1
0
-5
V
2
-5
0
J
1
–J
2
Insertion loss
Isolation
J
1
–J
3
Isolation
Insertion loss
Absolute Maximum Ratings
Characteristic
RF input power
Control voltage
Operating temperature
Storage temperature
V
2
0
V
HIGH
J
1
–J
2
Insertion loss
Isolation
J
1
–J
3
Isolation
Insertion loss
Value
2 W > 500 MHz 0/-8 V
0.5 W @ 50 MHz 0/-8 V
+0.2 V, -8 V
-40 °C to +85 °C
-65 °C to +150 °C
All other conditions not recommended.
Positive Operation
(1)
V
1
V
HIGH
0
Performance is guaranteed only under the conditions listed in the specifications table and is
not guaranteed under the full range(s) described by the Absolute Maximum specifications.
Exceeding any of the absolute maximum/minimum specifications may result in permanent
damage to the device and will void the warranty.
All other conditions not recommended.
V
HIGH
= 5 to 8 V (V
S
= V
HIGH
± 0.2 V).
1. Refer to Application Notes for further information.
SOIC-8
Pin 8
0.050 (1.27 mm) BSC
CAUTION:
Although this device is designed to be as robust as
possible, ESD (Electrostatic Discharge) can damage
this device. This device must be protected at all times
from ESD. Static charges may easily produce poten-
tials of several kilovolts on the human body or
equipment, which can discharge without detection.
Industry-standard ESD precautions must be employed
at all times.
Pin 1
Indicator
0.244 (6.20 mm)
0.228 (5.80 mm)
Recommended
Solder
Reflow Profiles
Refer to the
“Recommended Solder Reflow Profile”
Application Note.
Pin 1
0.068
(1.73 mm) Max.
0.020 (0.51 mm) Max.
0.049
(1.24 mm)
0.016
(0.41 mm)
0.016 Max.
(0.41 mm) x
45˚ Chamfer
Tape and Reel Information
Refer to the
“Discrete Devices and IC Switch/Attenuators
Tape and Reel Package Orientation”
Application Note.
0.197 (5.00 mm)
0.189 (4.80 mm)
0.010 (0.25 mm)
0.004 (0.10 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
0.010 (0.25 mm)
0.007 (0.17 mm)
8˚
Max.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200256 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2006
3
DATA SHEET • AS338-12, AS338-12LF
Copyright © 2002, 2003, 2004, 2005, 2006, Skyworks Solutions, Inc. All Rights Reserved.
Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided
by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the
information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to
update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes.
No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or
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THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A
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Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of
products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for
applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters.
Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and
names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are
incorporated by reference.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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June 8, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200256 Rev. B
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