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

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)
Positive low voltage control (0/2.75 V operation) Low insertion loss (< 0.5 dB @ 1 GHz) High isolation (> 25 dB @ 1 GHz) Excellent IIP3 (63 dBm @ 2.75 V, 27 dBm/tone) Miniature QFN-12 plastic package PHEMT process
Description
The AS227-321 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.
0.029 (0.73 mm) Exposed pad 0.009 (0.23 mm) + 0.003 (0.07 mm) - 0.002 (0.05 mm)
0.007 (0.180 mm)
0.030 (0.75 mm) 0.002 (0.05 mm) 0.017 (0.435 mm) Sq. Pin 1 Indicator 0.057 (1.45 mm) Sq. + 0.004 (0.10 mm) - 0.006 (0.15 mm)
0 022 (0 55 mm)
Electrical Specifications at 25 C (0, +2.75 V)
Parameter Insertion loss Ant-RF1, RF2, RF3 Frequency DC-0.5 GHz DC-1.0 GHz DC-2.0 GHz DC-0.5 GHz DC-1.0 GHz DC-2.0 GHz DC-0.5 GHz DC-1.0 GHz DC-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
Operating Characteristics at 25 C (0, +2.75 V)
Parameter IIP3 2nd/3rd harmonic Gate leakage current Control voltages Condition 27 dBm/tone 34.5 dBm 34 dBm In @ 2.75 V VLOW VHIGH -0.25 2.60 Frequency 824/869 MHz 900 MHz Min. Typ. 63 65 50 0 2.75 0.25 5.00 Max. Unit dBm dBc A V V
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200120 Rev. A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * January 5, 2005
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DATA SHEET * AS227-321
Typical Performance Data
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
Truth Table
V1 VHIGH VLow VLOW Ant-RX1 Ant-TX Ant-RX2 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
VSWR (dB)
1.6 1.4 1.2
VLOW = 0-0.2 V. VHIGH = 2.75-5 V.
Absolute Maximum Ratings
1.0 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 Characteristic RF input power Control voltage Operating temperature Value 4 W > 0.5 GHz 0/+6 V control +6 V -40 C to +85 C -65 C to +150 C 25 C/W
Frequency (GHz)
VSWR vs. Frequency
Pin Out
ANT
Storage temperature JC
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. GND
GND
CBL
RF1
CBL
V1 N/C
V3 GND
CBL
RF3
GND
CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) 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.
DC blocks required. CBL = 47 pF for operation >500 MHz.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
January 5, 2005 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200120 Rev. A
RF2
CBL
V2
DATA SHEET * AS227-321
Copyright (c) 2002, 2003, 2004, 2005, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. ("Skyworks") products. These materials 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. Skyworks may make changes to its documentation, products, specifications and product descriptions at any time, without notice. Skyworks makes no commitment to update the information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from future changes to its documentation, products, specifications and product descriptions. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by or under this document. Except as may be provided in Skyworks Terms and Conditions of Sale for such products, Skyworks assumes no liability whatsoever in association with its documentation, products, specifications and product descriptions. THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED OR OTHERWISE, RELATING TO SALE AND/OR USE OF SKYWORKS PRODUCTS INCLUDING WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. SKYWORKS FURTHER 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 SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THESE MATERIALS 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. 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. The following are trademarks of Skyworks Solutions, Inc.: SkyworksTM, the Skyworks logo, and Breakthrough SimplicityTM. Product names or services listed in this publication are for identification purposes only, and may be trademarks of Skyworks or other third parties. Third-party brands and names are the property of their respective owners. Additional information, posted at www.skyworksinc.com, is incorporated by reference.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200120 Rev. A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * January 5, 2005
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