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DATA SHEET
SKY13278-313LF: GaAs SPDT Switch 100 MHz-2.5 GHz
Features
G G G G G G
Function Block Diagram
J2 V1
Broadband: 100 MHz-2.5 GHz Very low insertion loss: 0.4 dB typ. @ 900 MHz High isolation: 26 dB typ. @ 900 MHz Low current consumption: <100 A @ 3 V Miniature QFN-6 2 x 3 mm package Lead (Pb)-free and RoHS-compliant MSL-1 @ 260 C per JEDEC J-STD-020
J1
J3
V2
Description
The SKY13278-313LF is a pHEMT GaAs FET IC high linearity SPDT switch. This wideband switch has been designed for use from 100 MHz to 2.5 GHz, where extremely high linearity, low control voltage, high isolation, low insertion loss and ultra-miniature package size are required. It can be controlled with positive, negative or a combination of both voltages. The RF signal paths within the SKY13278-313LF are fully bilateral. Some standard implementations include T/R switching and diversity switching over 3 W. The SKY13278-313LF switch can be used in many analog and digital wireless communication systems including cellular, GSM and UMTS applications. Switching is controlled via two control voltage inputs. Depending upon the voltage level applied to the control voltage pins, the
common RF port (J1) is connected to one of two RF ports (J2 or J3) via a low insertion loss path, while the path between J1 and the other RF port is in its isolation state. When the control voltages are toggled, the states between J1 and J2, as wells as J1 and J3, are also toggled. The SKY13278-313LF is available in a lead(Pb)-free, RoHS-compliant, QFN-6 2 x 3 mm plastic package. An evaluation board is available upon request.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging.
Electrical Specifications
VCTL = 0/3 V, T = 25 C, PINPUT = 0 dBm, Z0 = 50 unless otherwise noted
Parameter Insertion loss Frequency 0.1-0.5 GHz 0.5-1.0 GHz 1.0-2.0 GHz 2.0-2.5 GHz 0.1-0.5 GHz 0.5-1.0 GHz 1.0-2.0 GHz 2.0-2.5 GHz 0.1-0.5 GHz 1.0-2.0 GHz 29 23 17 15 Min. Typ. 0.40 0.40 0.45 0.55 32 26 20 18 20 20 Max. 0.5 0.5 0.6 0.7 Unit dB dB dB dB dB dB dB dB dB dB
Isolation
Return loss (insertion loss state) Lower frequency return loss is dependent on DC blocks
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200504 Rev. D * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * March 30, 2007
1
DATA SHEET * SKY13278-313LF
Operating Characteristics
VCTL = 0/3 V, T = 25 C, PINPUT = 0 dBm, Z0 = 50 unless otherwise noted
Parameter Switching characteristics Rise, fall On, off Input power for 0.1 dB compression Second, third harmonics Second, third harmonics Blocker performance PIN = 34.5 dBm, fIN = 900 MHz PIN =32 dBm, fIN= 1800 MHz T1 = 1950 MHz @ 20 dBm T2 = 1760 MHz @ -15 dBm IMD3 measured at 2140 MHz VLOW = 0 V @ 20 A maximum VHIGH = 2.8 V @ 100 A maximum to 5 V @ 200 A maximum Condition 10/90% or 90/10% RF 50% CTL to 90/10% RF 900 MHz Frequency Min. Typ. 650 800 40 -75 -70 -105 Max. Unit ns ns dBm dBc dBc dBm
Thermal resistance Control voltages
45
C/W
Typical Performance Data
0 -0.2 0 -5
Insertion Loss (dB)
J3
-10
Isdolation (dB)
-0.4 -0.6 -0.8 -1.0 0
-15 -20 J2 -25 J3 -30 -35 -40
J2
0.5
1
1.5
2.0
2.5
3.0
0
0.5
1
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
0 -5 90 85 80
Isolation vs. Frequency
2nd 3rd
Return Loss (dB)
-10 -15 -20 -25 -30 -35 J3 lS22l -40 0 1 2 3 4 5 6 J2 lS22l J3 lS11l J2 lS11l
75
H2, H3 (dBc)
70 65 60 55 50 45
40 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0
Frequency (GHz)
VCTL (V)
Return Loss vs. Frequency
Second and Third Harmonics vs. Control Voltage FIN = 900 MHz PIN = 34.5 dBm
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
March 30, 2007 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200504 Rev. D
DATA SHEET * SKY13278-313LF
90 85 80 75 2nd 3rd
-80 -85 -90
Blocker (dBm)
H2, H3 (dBc)
70 65 60 55 50 45
-95 -100 -105 -110 -115 -120 0 30 60 90 120 150 180 3V 3.5 V 2.8 V
40 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0
VCTL (V)
Phase (Deg.)
Second and Third Harmonics vs. Control Voltage FIN = 1800 MHz PIN = 32 dBm
Truth Table
V1 VLOW VHIGH VLOW VHIGH V2 VHIGH VLOW VLOW VHIGH J1-J2 Isolation Insertion loss J1-J3 Insertion loss Isolation
Blocker Performance vs. Phase f1 = 1950 MHz, PIN = +20 dBm f2 = 1760 MHz, PIN = -15 dBm Blocker Measured at 2140 MHz
Absolute Maximum Ratings
Characteristic RF input power @ 5 V Control voltage Operating temperature Storage temperature Value 10 W, f > 900 MHz @ 25 C -0.2 < V1, V2 < 8 V -40 C to +85 C -65 C to +150 C
Not recommended(1) Not recommended(1)
2.8 V < VHIGH < 5 V , 0 < VLOW < 0.2 V. 1. Switch is in an undefined state.
Recommended Solder Reflow Profiles
Refer to the "Recommended Solder Reflow Profile" Application Note.
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.
Tape and Reel Information
Refer to the "Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation" Application Note.
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
200504 Rev. D * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * March 30, 2007
3
DATA SHEET * SKY13278-313LF
Pin Out
J2
1 6
Pin Descriptions
Pin Number
CBL GND J3
2 5
Pin Name J2
Description RF Input/Output - RF input/output port which is either connected to J1 via a low insertion loss path or isolated from J1, according to the logic voltage levels applied to V1 and V2. Equipotential Point - Internal circuit common, which must be connected to the pcb ground or common via the lowest possible impedance. RF Input/Output - RF input/output port which is either connected to J1 via a low insertion loss path or isolated from J1, according to the logic voltage levels applied to V1 and V2. Control Voltage 2 - Control voltage input #2. The logic voltage level applied to this pin, along with the voltage level applied to V1 (pin 6), determines the states of the RF paths between J1-J2 and J1-J3. RF Common Input/Output - RF common input/ output port which is either connected to J2 or to J3 via a low insertion loss and isolated from the other RF port, according to the logic voltage levels applied to V1 and V2. Control Voltage 1 - Control voltage input #1. The logic voltage level applied to this pin, along with the voltage level applied to V2 (pin 4), determines the states of the RF paths between J1-J2 and J1-J3.
V1 J1
1
CBL
3
4
CBL
V2
2
GND
QFN-6
Pin 1 Indicator 0.29 x 0.35
1 2
3
0.078 (2.00 mm) BSC 0.039 (1.00 mm) Max. 0.001 (0.025 mm) 0.001 (0.025 mm) 12 Max.
J3
4
V2
6
0.118
5 (3.00 mm)
BSC
3 4
5
Side View 0.35 0.08 mm
1 2 3
J1
Top View 1.02
6
6
0.64 BSC
V1
0.95 BSC
5 4
0.05 0.05 Bottom View
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
March 30, 2007 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200504 Rev. D
DATA SHEET * SKY13278-313LF
Evaluation Board
The evaluation board for the SKY13278-313 allows the switch to be fully exercised. The RF common port is marked "J1", and the two switched RF ports are marked "J2" and "J3". All of the RF ports have SMA connectors mounted. The control voltage inputs are marked "V1" and "V2". The printed circuit board material is FR4. The RF dielectric layer is 0.012 inches thick, 1/2 oz. copper. The RF transmission lines are each 50 (nominal) microstrip. There are three DC blocking capacitors on the board, C1, C2 and C3, each of which is in series with one of the RF ports. These capacitors are 47 pF. For improved insertion loss at signal frequencies below approximately 500 MHz these capacitors should be replaced with larger capacitance capacitors, such as 1000 pF.
J3 J2 J1
V1 C1 C2 V2
C3
Item C1, C2, C3 J1, J2, J3 U1 Printed Circuit Board
Description DC Blocking Capacitor, 47 pF SMA Connector, Edge Mount SKY13278-313 Skyworks SK39990
Comments 0402
C1 J2
V1
C2 U1 J1
C3 J3 V2
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200504 Rev. D * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * March 30, 2007
5
DATA SHEET * SKY13278-313LF
Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 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 6
March 30, 2007 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200504 Rev. D

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