DATA SHEET SKY13384-350LF: 0.02-4.0 GHz High Isolation SP4T Absorptive Switch With Decoder Applications • GSM/CDMA/WCDMA/TD-SCDMA/TD-LTE cellular infrastructure Features • Broadband frequency range: 0.02 GHz to 4.0 GHz • Low insertion loss: 0.70 dB @ 2 GHz • Typical isolation: 40 dB @ 2 GHz • Positive voltage control: 0/3 V to 0/5 V • Isolated ports are absorptive • Small, QFN (16-pin, 3 x 3 mm) package (MSL1, 260 °C per JEDEC J-STD-020) Figure 1. SKY13384-350LF Block Diagram Description The SKY13384-350LF is a symmetrical, single-pole, four-throw (SP4T) switch. The switch is intended for GSM/CDMA/WCDMA/TDSCDMA/TD-LTE cellular infrastructure applications. The impedance of the RF ports in isolation is 50 Ω. The SKY13384-350LF is manufactured using Skyworks state-ofthe-art GaAs pHEMT process. The SKY13384-350LF features integrated logic that uses only two control lines for switch operation. The SKY13384-350LF SP4T switch is provided in a compact Quad Flat No-Lead (QFN) 3 x 3 mm package. A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. Figure 2. SKY13384-350LF Pinout – 16-Pin QFN (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201529B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 29, 2011 1 DATA SHEET • SKY13384-350LF SP4T SWITCH Table 1. SKY13384-350LF Signal Descriptions Pin # Name Description Pin # Name Description 1 RF4 RF output 4. A DC blocking capacitor is required. 9 RF2 RF output 2. A DC blocking capacitor is required. 2 GND Ground 10 GND Ground 3 GND Ground 11 GND Ground 4 RF3 RF output 3. A DC blocking capacitor is required. 12 RF1 RF output 1. A DC blocking capacitor is required. 5 GND Ground 13 GND Ground 6 VDD Supply voltage input 14 GND Ground 7 VC1 Control signal 1. See Table 4. 15 RFC RF common port. A DC blocking capacitor is required. 8 VC2 Control signal 2. See Table 4. 16 GND Ground Table 2. SKY13384-350LF Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Supply voltage VDD 5.5 V Input power PIN +32 dBm Control voltage (VC1, VC2) VCTL VDD V Operating temperature TOP –40 +85 °C Storage temperature TSTG –40 +125 °C Note: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. 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 should be used at all times. Functional Description Electrical and Mechanical Specifications The SKY13384-350LF is comprised of a CMOS decoder that enables two TTL-compatible DC lines to control four RF ports. The decoder is internally connected to a GaAs pHEMT RF switch. Depending on the logic voltage level applied to the control pins, the RFC pin is connected to one of four switched RF outputs (RF1, RF2, RF3, or RF4) by a low insertion loss path, while maintaining a high isolation path to the alternate port. The absolute maximum ratings of the SKY13384-350LF are provided in Table 2. Electrical specifications are provided in Table 3. The CMOS decoder should have VDD applied before a logic high is applied to one of the control lines. The state of the SKY13384-350LF is determined by the logic provided in Table 4. Typical performance characteristics of the SKY13384-350LF are illustrated in Figures 3 through 9. The recommended startup sequence is: Step 1: Apply VDD. Step 2: Apply VC1 and VC2 Step 3: Apply RF input. The device must be turned off in the reverse order. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 August 29, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201529B DATA SHEET • SKY13384-350LF SP4T SWITCH Table 3. SKY13384-350LF Electrical Specifications (1 of 2) (Note 1) (VDD = 5 V, VC1 = VC2 = VDD, TOP = +25 °C, All Unused RF Ports are Terminated in a 50 Ω Load, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units 0.6 0.7 0.8 1.2 0.9 1.0 1.2 1.5 dB dB dB dB RF Specifications Insertion loss IL 0.02 to 1.0 GHz 1.0 to 2.0 GHz 2.0 to 2.5 GHz 2.5 to 4.0 GHz Isolation ISO 0.02 to 1.0 GHz 1.0 to 2.0 GHz 2.0 to 2.5 GHz 2.5 to 4.0 GHz Return loss (insertion loss state) (Note 2) |S11| 45 40 35 30 50 44 40 36 dB dB dB dB 0.02 to 2.5 GHz, all RF ports 15 dB 2.5 to 4.0 GHz 12 dB Return loss (isolation state) |S22| 0.3 to 4.0 GHz 11 dB 1 dB Input Compression Point P1dB 0.3 to 4.0 GHz, VDD = 5 V +30 dBm 3rd Order Input Intercept Point IIP3 Two tones, +7 dBm per tone, 0.3 to 4.0 GHz, 1 MHz spacing +51 dBm Switching speed TRISE, TFALL 10/90% RF rise/fall time 40 ns TON, TOFF 50 % VCTL to 10/90% on/off time 100 ns DC/Control Specifications Supply voltage VDD Supply current IDD Control voltage (VC1, VC2): High Low VCTL Control current: High Low ICTL 3 5 V μA 350 2.5 3.0 0 VDD 0.8 V V μA μA 0.5 0.5 Note 1: Performance is guaranteed only under the conditions listed in this Table. Note 2: Return loss in the insertion loss state is dependent on the value of DC blocking capacitors. Table 4. SKY13384-350LF Truth Table Note: State VC1 (Pin 7) VC2 (Pin 8) RF Path 1 VLOW VLOW RFC to RF1 2 VLOW VHIGH RFC to RF2 3 VHIGH VLOW RFC to RF3 4 VHIGH VHIGH RFC to RF4 VHIGH = 2.5 V to VDD VLOW = 0 to 0.8 V Any state other than described in this Table places the switch into an undefined state. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201529B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 29, 2011 3 DATA SHEET • SKY13384-350LF SP4T SWITCH Typical Performance Characteristics (VDD = 5 V, CTRL1 = CTRL2 = VDD, TOP = +25 °C, PIN = 0 dBm, Blocking Capacitors = 100 pF, Unless Otherwise Noted) Figure 3. Insertion Loss vs Frequency Figure 4. Isolation vs Frequency (RFC to RF1 “On”) Figure 5. Isolation vs Frequency (RFC to RF2 “On”) Figure 6. Isolation vs Frequency (RFC to RF3 “On”) Figure 7. Isolation vs Frequency (RFC to RF4 “On”) Figure 8. Return Loss vs Frequency (Insertion Loss States) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 August 29, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201529B DATA SHEET • SKY13384-350LF SP4T SWITCH Figure 9. Return Loss vs Frequency (Isolation States) Evaluation Board Description Package and Handling Information The SKY13384-350LF Evaluation Board is used to test the performance of the SKY13384-350LF SP4T Switch. An Evaluation Board schematic diagram is provided in Figure 10. An assembly drawing for the Evaluation Board is shown in Figure 11. Instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. Package Dimensions The PCB layout footprint for the SKY13384-350LF is provided in Figure 12. Typical case markings are shown in Figure 13. Package dimensions for the 16-pin QFN are shown in Figure 14, and tape and reel dimensions are provided in Figure 15. THE SKY13384-350LF is rated to Moisture Sensitivity Level 1 (MSL1) at 260 °C. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, Solder Reflow Information, document number 200164. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Production quantities of this product are shipped in a standard tape and reel format. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201529B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 29, 2011 5 DATA SHEET • SKY13384-350LF SP4T SWITCH Figure 10. SKY13384-350LF Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 August 29, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201529B DATA SHEET • SKY13384-350LF SP4T SWITCH Figure 11. SKY13384-350LF Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201529B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 29, 2011 7 DATA SHEET • SKY13384-350LF SP4T SWITCH Figure 12. SKY13384-350LF PCB Layout Footprint (Top View) Figure 13. Typical Case Markings (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 August 29, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201529B DATA SHEET • SKY13384-350LF SP4T SWITCH Figure 14. SKY13384-350LF 16-Pin QFN Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201529B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 29, 2011 9 DATA SHEET • SKY13384-350LF SP4T SWITCH Figure 15. SKY13384-350LF Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 August 29, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201529B DATA SHEET • SKY13384-350LF SP4T SWITCH Ordering Information Model Name SKY13384-350LF SP4T Switch Manufacturing Part Number SKY13384-350LF Evaluation Board Part Number SKY13384-350LF-EVB Copyright © 2011 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. 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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 • [email protected] • www.skyworksinc.com 201529B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 29, 2011 11