DATA SHEET SKY13278-313LF: GaAs SPDT Switch 100 MHz–2.5 GHz Features ● ● ● ● ● ● Function Block Diagram 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 µA @ 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 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. V1 J2 J1 J3 V2 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. Switching is controlled via two control voltage inputs. Depending upon the voltage level applied to the control voltage pins, the Electrical Specifications VCTL = 0/3 V, T = 25 °C, PINPUT = 0 dBm, Z0 = 50 Ω unless otherwise noted Parameter Frequency Insertion loss 0.1–0.5 GHz 0.5–1.0 GHz 1.0–2.0 GHz 2.0–2.5 GHz Isolation 0.1–0.5 GHz 0.5–1.0 GHz 1.0–2.0 GHz 2.0–2.5 GHz Return loss (insertion loss state) Lower frequency return loss is dependent on DC blocks 0.1–0.5 GHz 1.0–2.0 GHz Min. 29 23 17 15 Typ. Max. Unit 0.40 0.40 0.45 0.55 0.5 0.5 0.6 0.7 dB dB dB dB 32 26 20 18 dB dB dB dB 20 20 dB dB Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • 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 Ω unless otherwise noted Parameter Condition Switching characteristics Rise, fall On, off Frequency Min. Typ. 10/90% or 90/10% RF 50% CTL to 90/10% RF Input power for 0.1 dB compression 900 MHz Max. Unit 650 800 ns ns 40 dBm Second, third harmonics PIN = 34.5 dBm, fIN = 900 MHz -75 dBc Second, third harmonics PIN =32 dBm, fIN= 1800 MHz -70 dBc Blocker performance T1 = 1950 MHz @ 20 dBm T2 = 1760 MHz @ -15 dBm IMD3 measured at 2140 MHz -105 dBm 45 °C/W Thermal resistance Control voltages VLOW = 0 V @ 20 µA maximum VHIGH = 2.8 V @ 100 µA maximum to 5 V @ 200 µA maximum Typical Performance Data 0 0 -5 J3 -0.4 -10 Isdolation (dB) Insertion Loss (dB) -0.2 J2 -0.6 -15 -20 J2 -25 J3 -30 -0.8 -35 -1.0 -40 0 0.5 1 1.5 2.0 2.5 3.0 0 0.5 1 1.5 2.5 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Isolation vs. Frequency 85 -5 2nd 80 -10 H2, H3 (dBc) 75 -15 J3 lS11l J2 lS11l -20 -25 3rd 70 65 60 55 J2 lS22l -30 50 -35 45 J3 lS22l -40 0 1 2 3 4 5 6 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 • [email protected] • www.skyworksinc.com 2 3.0 90 0 Return Loss (dB) 2.0 March 30, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200504 Rev. D DATA SHEET • SKY13278-313LF 90 -80 85 Blocker (dBm) -90 75 H2, H3 (dBc) -85 2nd 80 3rd 70 65 60 55 -95 -100 2.8 V -105 3V -110 50 45 -115 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 -120 3.5 V 0 30 60 90 120 150 VCTL (V) Phase (Deg.) Second and Third Harmonics vs. Control Voltage FIN = 1800 MHz PIN = 32 dBm Blocker Performance vs. Phase f1 = 1950 MHz, PIN = +20 dBm f2 = 1760 MHz, PIN = -15 dBm Blocker Measured at 2140 MHz Truth Table V1 V2 J1–J2 J1–J3 VLOW VHIGH Isolation Insertion loss VHIGH VLOW Insertion loss Isolation VLOW VLOW Not recommended(1) VHIGH VHIGH 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. Tape and Reel Information Refer to the “Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation” Application Note. 180 Absolute Maximum Ratings Characteristic RF input power @ 5 V Value 10 W, f > 900 MHz @ 25 °C Control voltage -0.2 < V1, V2 < 8 V Operating temperature -40 °C to +85 °C Storage temperature -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 • [email protected] • 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 Pin Descriptions J2 1 6 2 5 CBL GND J3 V1 CBL 3 4 CBL 0.078 (2.00 mm) BSC 0.29 x 0.35 1 V2 0.001 (0.025 mm) ± 0.001 (0.025 mm) 0.118 5 (3.00 mm) BSC Top View 2 GND Equipotential Point – Internal circuit common, which must be connected to the pcb ground or common via the lowest possible impedance. 3 J3 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. 4 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. 5 J1 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. 6 V1 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. Side View 1.02 0.35 ± 0.08 mm 1 6 0.95 BSC 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. 12˚ Max. 4 3 J2 0.039 (1.00 mm) Max. 6 2 Pin Name 1 J1 QFN-6 Pin 1 Indicator Pin Number 5 2 4 3 0.64 BSC 0.05 ± 0.05 Description Bottom View Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • 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”. J2 The printed circuit board material is FR4. The RF dielectric layer is 0.012 inches thick, ½ oz. copper. The RF transmission lines are each 50 Ω (nominal) microstrip. J1 V1 C1 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. C2 C3 V2 J3 Item Description C1, C2, C3 DC Blocking Capacitor, 47 pF J1, J2, J3 SMA Connector, Edge Mount U1 Printed Circuit Board Comments 0402 SKY13278-313 Skyworks SK39990 C1 V1 J2 C2 J1 U1 C3 J3 V2 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • 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 © 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. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 March 30, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200504 Rev. D