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DATA SHEET
AS227-321LF: PHEMT GaAs IC High-Power SP3T Switch 300 kHz-2 GHz
Features

Functional Block Diagram
ANT V1 V3
Positive low voltage control (0/2.75 V operation) Low insertion loss (0.5 dB typ. @ 1 GHz) High isolation (26 dB typ. @ 1 GHz) Excellent IIP3 (63 dBm @ 2.75 V, 27 dBm/tone) Miniature QFN-12 plastic package PHEMT process Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 C per JEDEC J-STD-020
RF1
RF3
RF2
Description
The AS227-321LF is a PHEMT GaAs IC SP3T antenna switch operating in the 900 MHz and 1800 MHz frequency bands. Switching between the antenna and Tx/Rx ports is accomplished with 3 control inputs. When the control inputs are driven with the appropriate voltages, a low insertion loss path is provided from an antenna port to an Rx or Tx port, while the other ports have high attenuation.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging.
Electrical Specifications at 25 C
VCTL = 0/2.75 V, ZO = 50 , unless otherwise noted
Parameter Insertion loss Ant-RF1, RF2, RF3 Frequency 300 kHz-0.5 GHz 300 kHz-1.0 GHz 300 kHz-2.0 GHz 300 kHz-0.5 GHz 300 kHz-1.0 GHz 300 kHz-2.0 GHz 300 kHz-0.5 GHz 300 kHz-1.0 GHz 300 kHz-2.0 GHz 30 24 18 Min. Typ. 0.45 0.50 0.70 32 26 20 18 18 14 Max. 0.6 0.7 0.9 Unit dB dB dB dB dB dB dB dB dB
Isolation
Ant-RF1, RF2, RF3
Return loss
Ant-RF1, RF2, RF3
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200120 Rev. D * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * August 15, 2006
V2
1
DATA SHEET * AS227-321LF
Operating Characteristics at 25 C
VCTL = 0/2.75 V, ZO = 50 , unless otherwise noted
Parameter Input Third Order Intercept (IIP3) 2nd/3rd harmonic Gate leakage current Thermal resistance Control voltages VLOW VHIGH -0.25 2.60 Condition PIN = 27 dBm, each tone PIN = 34.5 dBm PIN = 34 dBm, VCTL = 2.75 V Frequency 824/869 MHz 900 MHz Min. Typ. 63 -65 50 25 0 2.75 0.25 5.00 Max. Unit dBm dBc A C/W V V
Typical Performance Data
TA = 25 C, VCTL = 0/2.75 V, ZO = 50 , unless otherwise noted
0 -0.2 -0.4 Ant-Tx Ant-Rx1 -0.6 -0.8 -1.0 -1.2 -1.4 -1.6 -1.8 -2.0 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 Ant-Rx2 0 -5 -10 -15
Insertion Loss (dB)
Isolation (dB)
-20 -25 -30 -35 -40
Ant-Tx
Ant-Rx1 Ant-Rx2
-45 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
2.0 1.8
Isolation vs. Frequency
VSWR (dB)
1.6 1.4 Ant-Tx 1.2 Ant-Rx2 Ant-Rx1
1.0 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50
Frequency (GHz)
VSWR 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. * 200120 Rev. D
DATA SHEET * AS227-321LF
Pin Out (Top View)
ANT CBL
Truth Table
V1 VHIGH
GND
V2 VLOW VHIGH VLOW
V3 VLOW VLOW VHIGH
Ant-RF1 Ins. loss Isolation Isolation
Ant-RF2 Isolation Ins. loss Isolation
Ant-RF3 Isolation Isolation Ins. loss
GND
VLow VLOW
12
11
10
All other conditions not recommended. VLOW = 0-0.2 V. VHIGH = 2.75-5 V.
V3 CBL RF3
9
V1 RF1 CBL N/C
GND
V2
CBL
RF2
DC blocks required. CBL = 47 pF for operation >500 MHz. 0.029 (0.73 mm)
Absolute Maximum Ratings
Characteristic RF input power Control voltage Operating temperature Storage temperature Value 4 W > 0.5 GHz 0/6 V control 6V -40 C to +85 C -65 C to +150 C
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 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.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200120 Rev. D * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * August 15, 2006
1 2 3
4 5 6
8
QFN-12
0.118 (3.00 mm) Pin 1 Indicator 0.118 (3.00 mm) 0.008 (0.20 mm) Seating Plane 0.001 (0.02 mm)
GND
7
0.007 (0.180 mm)
0.030 (0.75 mm) 0.002 (0.05 mm) 0.017 (0.435 mm) Sq. Pin 1 Indicator
Exposed pad 0.009 (0.23 mm) + 0.003 (0.07 mm) - 0.002 (0.05 mm) 0.0196 (0.50 mm) BSC
0.057 (1.45 mm) Sq. + 0.004 (0.10 mm) - 0.006 (0.15 mm)
0.022 (0.55 mm) 0.004 (0.10 mm)
3
DATA SHEET * AS227-321LF
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. * 200120 Rev. D

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