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: 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
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.
1234
8765
VS
10 kΩ
J1
V1
V2
GND
J3
CBL
50
CBP
J2
CBL
CBP
GND
50
CBL
Pin Out
External components shown are for positive voltage operation only.
CBL = 100 pF, CBP = 1000 pF for operation >500 MHz.
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
NEW
Parameter(1) Frequency Min. Typ. Max. Unit
Insertion Loss(2) 300 kHz–0.5 GHz 0.5 0.7 dB
300 kHz–1.0 GHz 0.6 0.8 dB
300 kHz–2.0 GHz 0.7 0.9 dB
300 kHz–2.5 GHz 1.2 1.4 dB
Isolation 300 kHz–0.5 GHz 43 46 dB
300 kHz–1.0 GHz 36 39 dB
300 kHz–2.0 GHz 27 30 dB
300 kHz–2.5 GHz 23 26 dB
VSWR(3) 300 kHz–0.5 GHz 1.2:1 1.3:1
300 kHz–1.0 GHz 1.2:1 1.4:1
300 kHz–2.5 GHz 1.3:1 1.5:1
Electrical Specifications at 25 °C (0, -5 V)
1. All measurements made in a 50 Ωsystem, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
3. Input/output.
2.5
2.0
2.0
1.5
1.5
1.0
1.0
0.5
0.5
0
0
Frequency (GHz)
Insertion Loss vs. Frequency
Insertion Loss (dB)
2.00
2.0 2.5
1.75
1.50
1.5
1.25
1.00
1.00.50
Frequency (GHz)
VSWR vs. Frequency
VSWR
Frequency (GHz)
Isolation vs. Frequency
60
50
40
30
20
01 23 4 5
J1–J3
J1–J2
Isolation (dB)
Typical Performance Data (0, -5 V)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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
2
Parameter Condition Frequency Min. Typ. Max. Unit
Switching characteristics
Rise, fall 10/90% or 90/10% RF 8 ns
On, off 50% CTL to 90/10% RF 30 ns
Video feedthru TRISE = 1 ns, BW = 500 MHz 25 mV
Input power for 1 dB compression 0.5–2.5 GHz 28 dBm
0.05 GHz 23 dBm
Intermodulation intercept point For two-tone input power 5 dBm 0.5–2.5 GHz 46 dBm
0.05 GHz 40 dBm
Thermal resistance 25 °C/W
Control voltages VLOW = 0 to 0.2 V @ 20 µA max.
VHIGH = -5 V @ 50 µA to -8 V @ 200 µA max.
Operating Characteristics at 25 °C (0, -5 V)
DATA SHEET • AS338-12, AS338-12LF
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
0.049
(1.24 mm)
0.016
(0.41 mm)
0.016 Max.
(0.41 mm) x
45˚ Chamfer
Pin 1
0.197 (5.00 mm)
0.189 (4.80 mm)
0.068
(1.73 mm) Max.
0.010 (0.25 mm)
0.004 (0.10 mm)
0.010 (0.25 mm)
0.007 (0.17 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
8˚
Max.
0.020 (0.51 mm) Max.
0.244 (6.20 mm)
0.228 (5.80 mm)
0.050 (1.27 mm) BSC
Pin 8
Pin 1
Indicator
SOIC-8
Characteristic Value
RF input power 2 W > 500 MHz 0/-8 V
0.5 W @ 50 MHz 0/-8 V
Control voltage +0.2 V, -8 V
Operating temperature -40 °C to +85 °C
Storage temperature -65 °C to +150 °C
Absolute Maximum Ratings
V1V2J1–J2J1–J3
0 -5 Insertion loss Isolation
-5 0 Isolation Insertion loss
Truth Table
Negative Operation
Positive Operation(1)
V1V2J1–J2J1–J3
VHIGH 0 Insertion loss Isolation
0V
HIGH Isolation Insertion loss
All other conditions not recommended.
VHIGH = 5 to 8 V (VS= VHIGH ± 0.2 V).
1. Refer to Application Notes for further information.
All other conditions not recommended.
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.
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.
Recommended Solder Reflow Profiles
Refer to the “Recommended Solder Reflow Profile”
Application Note.
T
ape and Reel Information
Refer to the “Discrete Devices and IC Switch/Attenuators
Tape and Reel Package Orientation” Application Note.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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
4
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
information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and
Conditions of Sale.
THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A
PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY
DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS
SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION,
LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury,
death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any
damages resulting from such improper use or sale.
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.
