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DATA SHEET
AS218-000: PHEMT GaAs IC High-Power Transfer Switch 0.1-6 GHz
Applications
Pin Out (Top View)
Rx Tx
WLAN 802.11a, b, g diversity
Features
Operating frequency DC-6 GHz Positive low voltage control (0/3 V operation) Low insertion loss Lead (Pb)-free, RoHS-compliant, and Green

V1
ANT 1
ANT 2
V2
Description
The AS218-000 is a broadband transfer switch designed to combine T/R and antenna diversity switching functions on a single IC. The device is designed to handle high power and maintain high linearity at low control voltages. This low-cost switch is ideal for Wi-Fi systems and is capable of covering both the 2.4 and 5 GHz bands.
DC blocking caps required on RF lines for positive voltage operation.
NEW
Skyworks Green products are lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant, conform to the EIA/EICTA/JEITA Joint Industry Guide (JIG) Level A guidelines, and are free from antimony trioxide and brominated flame retardants.
Electrical Specifications at 25 C (0, 3 V)
T = 25 C, Z0 = 50 , unless otherwise noted
Parameter(1) Insertion loss(2, 4) Condition Ant 1, Ant 2 to Tx, Rx Frequency 0.10-6.00 GHz 2.40-2.50 GHz 5.15-5.85 GHz 0.10-6.00 GHz 2.40-2.50 GHz 5.15-5.85 GHz 0.10-6.00 GHz 2.40-2.50 GHz 5.15-5.85 GHz
3. Return loss for insertion loss state. 4. Tx and Rx paths can be used interchangeably.
Min.
Typ. 1.6 1.2 1.4
Max. 1.8 1.4 1.6
Unit dB dB dB dB dB dB dB dB dB
Isolation
Ant 1, Ant 2 to Tx, Rx
17 32 17
19 37 19 10 15 20
Return loss(3)
Ant 1, Ant 2 to Tx, Rx
1. All measurements made in a 50 system. 2. Insertion loss changes by 0.003 dB/C.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200145 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * August 15, 2006
1
DATA SHEET * AS218-000
Operating Characteristics at 25 C (0, 3 V)
T = 25 C, Z0 = 50 , unless otherwise noted
Parameter 2nd and 3rd harmonic P1 dB IIP3 Control voltages 20 dBm per tone 22 dBm per tone VLOW = 0-0.2 V @ 20 A max. VHIGH = 3-5 V @ 200 A max. Condition 23 dBm input @ 0,3 V Frequency 2-6 GHz 2-6 GHz 2-3 GHz 5-6 GHz Min. Typ. -63 33 54 47 Max. Unit dBc dBm dBm dBm
Typical Performance Data (0, 3 V)
T = 25 C, Z0 = 50 , unless otherwise noted
0 -0.2 -0.4 -0.6 -0.8 -1.0 -1.2 -1.4 -1.6 -1.8 -2.0 -2.2 -2.4 -2.6 -2.8 -3.0 0 1 2 3 4 5 6 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 0 1 2 3 4 5 6
Insertion Loss (dB)
Frequency (GHz)
Isolation (dB)
Frequency (GHz)
Insertion Loss vs. Frequency
0 -5 -10
Isolation vs. Frequency
Return Loss (dB)
-15 -20 -25 -30 -35 -40 -45 -50 0 1 2 3 4 5 6
Frequency (GHz)
Return Loss vs. Frequency
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
August 15, 2006 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200145 Rev. C
DATA SHEET * AS218-000
Absolute Maximum Ratings
Characteristic RF input power Control voltage Operating temperature Storage temperature Value 35 dBm >500 MHz 0/7 V control -0.2 V, +8 V -40 C to +85 C -65 C to +150 C
Truth Table
V1 0 1 V2 1 0 Insertion Loss Path Ant 1 to Tx, Ant 2 to Rx Ant 2 to Tx, Ant 1 to Rx
All other conditions not recommended. "1" = 3 to 5 V. "0" = 0 to 0.2 V.
0.012 (0.31 mm)
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 potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions must be employed at all times.
0.035 (0.90 mm) 0.027 (0.68 mm) 0.003 (0.08 mm) Sq. Typ. V1 ANT 1 ANT 2 V2 Rx Tx
0.028 (0.72 mm) 0.032 (0.81 mm) 0.024 (0.60 mm) 0.029 (0.73 mm) 0.033 (0.84 mm)
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.
Outline Drawing
0.005 (0.13 mm) 0.000
0.000 0.004 (0.11 mm)
Dimensions in inches (mm). Chip thickness = 0.008 0.001 (0.20 0.025 mm).
Ordering Information
Model Name AS218-000 GaAs switch Operating Temperature Range -40 C to +85 C Ordering Part Number AS218-000 Package Description Wafer on plastic-ring film frame
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200145 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * August 15, 2006
0.009 (0.24 mm)
3
DATA SHEET * AS218-000
Copyright (c) 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.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
August 15, 2006 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200145 Rev. C

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