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PRELIMINARY DATA SHEET
SKY13277-355LF: GaAs SP3T Absorptive Switch 500 MHz-2.5 GHz
Features
Positive voltage control (0/3 V typ.) G High isolation 62 dB at 1 GHz G Integrated silicon CMOS driver G Isolated ports are absorptive G Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260C per JEDEC J-STD-020
G
Functional Diagram
J1
RFc
J2
Description
The SKY13277-355LF is a pHEMT GaAs FET IC high isolation absorptive single-pole 3-throw switch packaged in a 20-lead exposed-pad plastic package for low-cost commercial applications. This switch controls signals from 500 MHz to 2.5 GHz. The switch is ideal for cellular base station switch matrices and other applications that require good RF impedance match independent of switch state. The SKY13277-355LF comprises a pHEMT switch die and a Si CMOS controller die. The switch die contains integral terminating resistors that present an absorptive load to the external circuit when the switch path is in its isolation state. The controller die has three inputs: supply voltage (VDD) and two logic control bits that select the state of the pHEMT switch die. External DC block capacitors are required on all RF ports. The SKY13277-355LF operates from -40 C to 85 C. A populated evaluation board is available.
Decoder VDD VCT1 VCT2
J3
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200414 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * October 5, 2007
1
PRELIMINARY DATA SHEET * SKY13277-355LF
Electrical Specifications at 25 C
VDD = 5 V, VCTL = 0/5 V, T = 25 C, PINPUT = 0 dBm, Z0 = 50 , unless otherwise noted
Parameter Insertion loss Frequency 0.5-1.0 GHz 1.0-2.0 GHz 2.0-2.5 GHz 0.5-1.0 GHz 1.0-2.0 GHz 2.0-2.5 GHz 0.5-1.0 GHz 1.0-2.0 GHz 2.0-2.5 GHz 0.5-1.0 GHz 1.0-2.0 GHz 2.0-2.5 GHz 60 53 49 11 9 8 11 10 8 Min. Typ. 0.9 1.1 1.3 62 57 55 15 12 11 15 14 13 Max. 1.1 1.3 1.5 Unit dB dB dB dB dB dB dB dB dB dB dB dB
Isolation
Return loss insertion loss state
Return loss isolation state
Operating Characteristics at 25 C
VDD = 5 V, VCTL = 0/5 V, T = 25 C, PINPUT = 0 dBm, Z0 = 50 , unless otherwise noted
Parameter Switching characteristics Rise/fall time On/off time Input power for 1 dB compression Intermodulation Intercept Point (IP3) Control voltages Condition 10/90% or 90/10% RF 50% VCTL to 90/10% RF VDD = 5 V For two tone input power 13 dBm/tone 1 MHz spacing, VDD = 5 V VCTLLOW VCTLHIGH 0.5-2.5 GHz 0.5-2.5 GHz 0 2.4 2.75 VDD = 3 V VCTLLOW, VCTLHIGH 5 5 Frequency Min. Typ. 5 15 30 43 0.5 VDD 5.5 Max. Unit ns ns dBm dBm V V V uA uA
Supply voltage (VDD) Supply currents
1. VDD must be powered on prior to a VCTL high signal. A latch up condition may occur if a logic high signal is applied prior to the VDD voltage. 2. Control voltages switch the VDD voltage to the GaAs switch.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
October 5, 2007 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200414 Rev. C
PRELIMINARY DATA SHEET * SKY13277-355LF
Typical Performance Data
VDD = 5 V, VCTL = 0/5 V, T = 25 C, PINPUT = 0 dBm, CBLOCK = 47 pF, Z0 = 50 , unless otherwise noted
0 -0.2 -0.4 RFc-J1 RFc-J2 RFc-J3 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 0 RFc-J2 RFc-J3
Insertion Loss (dB)
-0.8 -1.0 -1.2 -1.4 -1.6 -1.8 -2.0 0 0.5 1.0 1.5 2.0 2.5 3.0
Isolation (dB)
-0.6
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Typical Insertion Loss
RFc-J1 RFc-J3
Typical Isolation RFc-J1 Ins. state
RFc-J1 RFc-J2
0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 0
0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 0
Isolation (dB)
0.5
1.0
1.5
2.0
2.5
3.0
Isolation (dB)
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Typical Isolation RFc-J2 Ins. state
RFc J1 Output J2 Output J3 Output
Typical Isolation RFc-J3 Ins. state
J1 Output J2 Output J3 Output
0 -5
0 -5
Return Loss (dB)
Return Loss (dB)
-10 -15 -20 -25 -30 0 0.5 1.0 1.5 2.0 2.5 3.0
-10 -15 -20 -25 -30 0 0.5 1.0 1.5 2.0 2.5 3.0
Frequency (GHz)
Frequency (GHz)
Typical Return Loss Ins. State
Typical Return Loss Isolation States
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200414 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * October 5, 2007
3
PRELIMINARY DATA SHEET * SKY13277-355LF
Absolute Maximum Ratings
Characteristic RF input power @ 5.5 V VDD voltage range Operating temperature Storage temperature Value 32 dBm, f > 500 MHz 2.75 < VDD < 5.5 V -40 C to +85 C -65 C to +150 C
Truth Table
VCT1 0 1 0 1
"0" = 0 to 0.5 V. "1" = 2.4 to VDD. VDD = 2.75 to 5.5 V.
VCT2 0 0 1 1
RFC to J1 Insertion loss Isolation Isolation Undefined
RFC to J2 Isolation Insertion loss Isolation Undefined
RFC to J3 Isolation Isolation Insertion loss Undefined
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 ratings. Exceeding any of the absolute maximum/minimum ratings 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.
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.
Pin Out (Top View)
17 GND 16 GND 19 GND 20 GND 18 RFc
Pin Descriptions
Pin Number 1, 2, 4, 5, 6, 8, 9, 14-17, 19, 20 3
15 GND 14 GND 13 J1 12 VCT2 11 VCT1
Pin Name Gnd J3 J2 VDD VCT1 VCT2 J1 RFc Paddle
Description Ground RF port, must be DC blocked RF port, must be DC blocked DC bias for decoder DC logic pin DC logic pin RF port, must be DC blocked RF common port, must be DC blocked Ground
GND 1 GND 2 J3 3 GND 4 GND 5
7 10 11 12 13 18
GND 8
GND 9
GND 6
VDD 10
7
DC blocks are required on RFc, J1, J2, J3.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
October 5, 2007 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200414 Rev. C
J2
Exposed Paddle
PRELIMINARY DATA SHEET * SKY13277-355LF
Evaluation Board
QFN-20 (5 x 5 mm)
0.20 Ref 5.00 Pin 1 Indicator Seating Plane 0.02 + 0.03 0.02 - 0.02
5.00
Top View 0.90 0.10 3.15 + 0.10 3.15 - 0.015 20X 0.55 0.10 1.575 + 0.05 1.575 - 0.075
0.65 3.15 + 0.10 3.15 - 0.015
Part Marking
PIN 1 INDICATOR SKYWORKS P/N Dimensions in mm. 20X 0.30 0.05 Bottom View
S277 XXXX YWW
LOT # DATE CODE Y= CALENDAR YEAR WW= WEEK
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200414 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * October 5, 2007
5
PRELIMINARY DATA SHEET * SKY13277-355LF
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
October 5, 2007 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200414 Rev. C

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