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DATA SHEET
SKY13251-349, SKY13251-349LF: SP3T Switch for Bluetooth(R) and 802.11b, g
Applications
802.11b, g G Bluetooth(R) G ZigbeeTM G TDMA/GSM/EDGE CDMA/WCDMA G Other short-range wireless applications
G
Simplified Block Diagram
RF3 V3
RFC
RF2
Features
Positive low voltage control (0/+2.4 V) G Low insertion loss (<0.5 dB @ 2.5 GHz) G High isolation RF2, RF3 paths (29 dB @ 2.5 GHz and 27 dB @ 2.5 GHz) G Miniature QFN-8 lead exposed paddle 2 x 2 mm G PHEMT process G Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 C per JEDEC J-STD-020
G
V1
RF1
V2
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging.
Description
The SKY13251-349 is a PHEMT GaAs IC SP3T switch in a 2 x 2 mm QFN-8E package. The high isolation, low loss, small size and low cost features make this switch ideal for isolating Bluetooth(R) from 802.11b, g and designs that require combining TDMA, GSM, EDGE, CDMA, WCDMA with other short-range wireless applications. This switch is also available in a lead (Pb)-free package that is fully compliant with current RoHS requirements. The SKY12351-349 employs an asymmetrical design for improved performance as a transmit-receive switch. The path between the RF common (RFC) and RF1 is optimized for low loss transmit use, while the remaining two paths, RFC to RF2 and RFC to RF3, are optimized to produce higher isolation in receiver signal paths. A fully populated evaluation board is available.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200609 Rev. E * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * April 10, 2007
1
DATA SHEET * SKY13251-349, SKY13251-349LF
Electrical Specifications at 25 C (0, +3 V)
Z0 = 50 , unless otherwise noted
Parameter Insertion loss Condition RFC-RF1 Frequency LF-1.0 GHz 1.0-2.0 GHz 2.0-3.0 GHz LF-1.0 GHz 1.0-2.0 GHz 2.0-3.0 GHz LF-1.0 GHz 1.0-2.0 GHz 2.0-3.0 GHz LF-1.0 GHz 1.0-2.0 GHz 2.0-3.0 GHz LF-1.0 GHz 1.0-2.0 GHz 2.0-3.0 GHz LF-1.0 GHz 1.0-2.0 GHz 2.0-3.0 GHz 22 15 12 25 23 23 Min. Typ. 0.35 0.40 0.45 0.35 0.50 0.60 24 18 15 29 27 27 24 25 25 22 19 20 Max. 0.40 0.50 0.60 0.40 0.60 0.70 Unit dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB
RFC-RF2, RF3
Isolation
RFC-RF1
RFC-RF2, RF3
Return loss (insertion loss state)
RFC-RF1
RFC-RF2, RF3
LF = low frequency. The low frequency limit is set by the value of the DC blocking capacitors used external to the part.
Operating Characteristics at 25 C (0, +3 V)
Z0 = 50 , unless otherwise noted
Parameter Switching characteristics Rise Fall On Off Input power for -1.0 dB compression Intermodulation intercept point (IP3) Control voltages High Low Control port input current VCTL = 3 V VCTL = 0 V Condition 10% to 90% RF 90% to 10% RF 50% VCTL to 90% RF 50% VCTL to 10% RF VCTL = 0/3 V Two-tones 900 MHz, 5 MHz spacing +10 dBm each tone 0.5-3 GHz 0.5-3 GHz Frequency Min. Typ. 50 25 50 50 25 46 Max. Unit ns ns ns ns dBm dBm
2.3 0
5.5 0.2 100 20
V V A A
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
April 10, 2007 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200609 Rev. E
DATA SHEET * SKY13251-349, SKY13251-349LF
Typical Performance Data
Z0 = 50 , TA = 25 C, unless otherwise noted
0 -0.1 -0.2 0 -5 -10 RFC-RF1 Path
Insertion Loss (dB)
-0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1.0 0 0.5 1.0 1.5
Isolation (dB)
-15 RFC-RF1 Path w/RF2 On -20 -25 -30 -35 -40 RFC-RF3 Path w/RF1 On RFC-RF2 Path w/RF1 On
RFC-RF2 Path RFC-RF3 Path
2.0
2.5
3.0
0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
0 -5 -10
Isolation vs. Frequency
Absolute Maximum Ratings
Characteristic Value 1 W, f > 500 MHz 0.5 W, f < 500 MHz -0.2 V, +8 V -40 C to +85 C -65 C to +150 C 45 C/W RF input power (VCTL = 0/7 V) RFC-RF3 Path Control voltage Operating temperature RFC-RF2 Path RFC-RF1 Path Storage temperature JC
Return Loss (dB)
-15 -20 -25 -30 -35 -40 0 0.5 1.0 1.5 2.0 2.5 3.0
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.
Frequency (GHz)
Return Loss vs. Frequency
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
200609 Rev. E * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * April 10, 2007
3
DATA SHEET * SKY13251-349, SKY13251-349LF
Pin Out (Top View)
RFC CBL
1 8
QFN 8E 2 x 2 (-349)
CBL 0.70 0.05 RF3 0.125 Max. 10 + 2 -10 0.20 0.05
N/C 2
7
V3 L 2.00 BSC C V2 0.125 Max. C L CBL 2.00 BSC Top View 1
Pin 1 Mark 0.025 0.025 0.90 0.10 Side View 0.56 0.01
V1 CBL
3
6
RF1
4
5
RF2
CBL = 47 pF for operation >500 MHz. Exposed paddle must be grounded.
0.28 0.01 0.29+0.16 -0.09 0.20 + 0.08 -0.02
0.29 + 0.16 -0.09 R 0.075 Ref C L
Truth Table
V1 1 0 0 V2 0 1 0 V3 0 0 1 RFC-RF1 Isolation Insertion loss Isolation RFC-RF2 Insertion loss Isolation Isolation RFC-RF3 Isolation Isolation Insertion loss
1.02 + 0.10 -0.08 0.51 0.01
0.50 BSC 1 Exposed Pad 0.17/0.30 2X BOTTOM VIEW
All other logic conditions put the switch in an undefined state. "0"= 0 to 0.2 V. "1"=2.3 to 5.5 V.
Recommended Solder Reflow Profiles
Refer to the "Recommended Solder Reflow Profile" Application Note.
Tape 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 4
April 10, 2007 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200609 Rev. E
DATA SHEET * SKY13251-349, SKY13251-349LF
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
200609 Rev. E * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * April 10, 2007
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