DATA SHEET SKY13385-460LF: 0.1-3.5 GHz SP3T Switch Applications • 802.11 b/g WLANs • Bluetooth® Features • Broadband frequency range: 0.1 to 3.5 GHz • Low insertion loss: 0.5 dB @ 2.45 GHz • High isolation: 32 dB up to 2.45 GHz • No external DC blocking capacitors required • Positive low voltage control: VCTL = 1.650 to 3.465 V, VDD = 2.5 to 5.5 V • Small, QFN (12-pin, 2 x 2 mm, 0.5 mm pitch) package (MSL1, 260 °C per JEDEC J-STD-020) Figure 1. SKY13385-460LF Block Diagram Description The SKY13385-460LF is a CMOS silicon-on-insulation (SOI), single-pole, triple-throw (SP3T) switch. The high linearity performance and low insertion loss makes the device an ideal choice for WLAN (802.11 b/g) and Bluetooth® applications in the 2.4 to 2.5 GHz frequency range. The SKY13385-460LF SP3T switch is provided in a compact Quad Flat No-Lead (QFN) 2 x 2 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. SKY13385-460LF Pinout – 12-Pin QFN (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201513B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2011 1 DATA SHEET • SKY13385-460LF SP3T SWITCH Table 1. SKY13385-460LF Signal Descriptions Pin # Note: Name Description Pin # Name Description 1 J1 RF port 1. 7 VDD DC power supply. 2 GND Ground 8 GND Ground 3 J3 RF port 3. 9 J2 RF port 2. 4 V1 DC control voltage 1. See Table 4. 10 GND Ground 5 V2 DC control voltage 2. See Table 4. 11 RFC RF common (antenna) port. 6 V3 DC control voltage 3. See Table 4. 12 GND Ground Exposed pad must be grounded. Table 2. SKY13385-460LF Absolute Maximum Ratings (Note 1) Parameter Symbol Minimum Maximum Units Supply voltage (VDD) VDD 2.5 5.5 V Control voltage (V1, V2, V3) (Note 2) VCTL 1.65 3.50 V Input power PIN +35 dBm Storage temperature TSTG –40 +125 °C Operating temperature TOP –40 +85 °C Note 1: 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. Note 2: Any bias voltage applied to the V1, V2, or V3 pins may damage the device if there is no bias voltage also present on the VDD pin. Maximum control voltage cannot exceed VDD. 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. The SKY13385-460LF ESD threshold level is 500 VDC using Human Body Model (HBM) testing. Functional Description The SKY13385-460LF includes an internal negative voltage generator and decoder that eliminate the need for external DC blocking capacitors on the RF ports. No external components are required for proper operation. DC decoupling capacitors may be added on the VDD and control lines if necessary. Switching is controlled by three control voltage inputs: V1, V2, and V3. Depending on the logic voltage level applied to the control pins, the RFC (RF common) pin is connected to one of three switched RF outputs (J1, J2, or J3) through a low insertion path, while the path between the RFC pin and the other RF pins is in a high isolation state. There is a fourth switching state that enables J2 and J3 at the same time. The output power measured at J2 and J3 in this state is 3 dB less than the insertion loss. For proper switching operation, the SKY13385-460LF must be set to a state for a minimum of 10 μs before changing to a different state. A typical switching diagram is shown in Figure 3. device to 5 μA, typical. To prevent the switch from accidentally entering shutdown mode during switching, caution must be taken to avoid having all three control signals (V1, V2, and V3) set to logic low for more than 500 ns. When exiting shutdown mode, the switch has a 25 μs startup time before switching occurs. Electrical and Mechanical Specifications The absolute maximum ratings of the SKY13385-460LF are provided in Table 2. Electrical specifications are provided in Table 3. The state of the SKY13385-460LF is determined by the logic provided in Table 4. Typical performance characteristics of the SKY13385-460LF are illustrated in Figures 4 through 7. Shutdown mode is enabled by connecting all control pins to logic low. This mode reduces the overall current consumption of the Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 May 18, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201513B DATA SHEET • SKY13385-460LF SP3T SWITCH Figure 3. Typical Switching Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201513B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2011 3 DATA SHEET • SKY13385-460LF SP3T SWITCH Table 3. SKY13385-460LF Electrical Specifications (1 of 2) (Note 1) (VDD = 2.5 V to 5.5 V, VCTL = 0 V (Low), VCTL = 1.8 V (High), TOP = +25 °C, PIN = 0 dBm, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units f = 1 GHz, RFC-J1, RFC-J2 0.40 0.50 dB RF Specifications Insertion loss IL Insertion loss IL Insertion loss IL f = 1 GHz, RFC-J3 0.45 0.50 dB f = 2 GHz, RFC-J1, RFC-J2 0.40 0.50 dB f = 2 GHz, RFC-J3 0.47 0.55 dB f = 2.4 to 2.5 GHz, RFC-J1, RFC-J2 0.43 0.55 dB f = 2.4 to 2.5 GHz, RFC-J3 0.52 0.65 dB Isolation Iso f = 1 GHz, RFC-J1, RFC-J2, RFC-J3 40 43 dB Isolation Iso f = 2 GHz, RFC-J1, RFC-J2, RFC-J3 34 37 dB Isolation Iso f = 2.4 to 2.5 GHz, RFC-J1, RFC-J2, RFC-J3 32 35 dB Return loss |S11| f = 2.45 GHz 18 20 dB 3 Order Input Intercept Point IIP3 f = 2.45 GHz, ΔF = 1 MHz, PIN = +20 dBm/tone +55 +57 dBm Input 0.1 dB compression point P0.1dB f = 2.45 GHz +32.5 +30.5 dBm dBm rd RFC to J1 and J2 RFC to J3 2nd harmonic 2fo f = 2.45 GHz, PIN = +20 dBm +75 dBc 3rd harmonic 3fo f = 2.45 GHz, PIN = +20 dBm +75 dBc Error Vector Magnitude, WLAN EVM_WLAN PIN for 2.5% error, WLAN 2.45 GHz, 802.11g, OFDM, 54 Mbps, 64 QAM +27 dBm 10/90% RF 180 Switching rise time 200 Switching fall time 90/10% RF 110 130 ns Switching on time 50% VCTL to 10/90% RF 250 500 ns Switching off time 50% VCTL to 90/10% RF 190 210 ns Logic dwell time (Note 2) TOP = –40 °C to +85 °C Startup time (Note 3) Shutdown state to any RF switch state 25 μs 10 μs 12 20 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 ns May 18, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201513B DATA SHEET • SKY13385-460LF SP3T SWITCH Table 3. SKY13385-460LF Electrical Specifications (2 of 2) (Note 1) (VDD = 2.5 V to 5.5 V, VCTL = 0 V (Low), VCTL = 1.8 V (High), TOP = +25 °C, PIN = 0 dBm, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units 1.650 0 1.800 3.465 0.40 V V 5.5 V DC Specifications Control voltage (Note 4): High Low VCTL_HIGH VCTL_LOW Supply voltage VDD Supply current IDD Control current Shutdown mode supply current 2.5 VDD = 3.5 V 30 μA ICTL V1 = V2 = V3 = 1.8 V 2 μA IOFF VDD = 3.5 V, V1 = V2 = V3 = 0 V 5 μA Note 1: Performance is guaranteed only under the conditions listed in this Table. Note 2: Dwell time refers to the amount of time the switch is required to stay in any one state before switching to another state. Refer to the Functional Description section for more information. Note 3: Startup time refers to the amount of time it takes for the switch to be fully operational when coming out of shutdown mode (V1 = V2 = V3 = logic 0). Note 4: Control voltage must be less than or equal to VDD at all times. Table 4. SKY13385-460LF Truth Table Note: V1 V2 V3 State 0 0 0 Shutdown 1 0 0 RFC to J1 0 1 0 RFC to J2 0 0 1 RFC to J3 0 1 1 RFC to J2 and J3 1 = 1.650 to 3.465 V 0 = 0 to 0.4 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 201513B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2011 5 DATA SHEET • SKY13385-460LF SP3T SWITCH Typical Performance Characteristics (VDD = 2.5 V to 5.5 V, VCTL = 0 V (Low), VCTL = 1.8 V (High), TOP = +25 °C, PIN = 0 dBm, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted) Figure 4. Typical Insertion Loss vs Frequency Figure 5. Typical Isolation vs Frequency (RFC to J1 Insertion Loss State) Figure 6. Typical Isolation vs Frequency (RFC to J2 Insertion Loss State) Figure 7. Typical Isolation vs Frequency (RFC to J3 Insertion Loss State) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 May 18, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201513B DATA SHEET • SKY13385-460LF SP3T SWITCH Evaluation Board Description Package and Handling Information The SKY13385-460LF Evaluation Board is used to test the performance of the SKY13385-460LF SP3T Switch. The board is made from a two-layer construction with ½ oz. copper cladding on top and bottom. The first layer material is 12-mil Rogers 4003C. The second layer material is 49-mil of FR4 for a total board thickness of about 62 mils. The impedance of all RF traces is 50 Ω. 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. An Evaluation Board schematic diagram is provided in Figure 8. An assembly drawing for the Evaluation Board is shown in Figure 9. Package Dimensions The PCB layout footprint for the SKY13385-460LF is provided in Figure 10. Typical case markings are shown in Figure 11. Package dimensions for the 12-pin QFN are shown in Figure 12, and tape and reel dimensions are provided in Figure 13. THE SKY13385-460LF 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. Figure 8. SKY13385-460LF Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201513B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2011 7 DATA SHEET • SKY13385-460LF SP3T SWITCH Figure 9. SKY13385-460LF Evaluation Board Assembly Diagram Figure 10. SKY13385-460LF PCB Layout Footprint (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 May 18, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201513B DATA SHEET • SKY13385-460LF SP3T SWITCH Figure 11. Typical Case Markings (Top View) Figure 12. SKY13385-460LF 12-Pin QFN Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201513B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2011 9 DATA SHEET • SKY13385-460LF SP3T SWITCH Figure 13. SKY13385-460LF Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 May 18, 2011 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201513B DATA SHEET • SKY13385-460LF SP3T SWITCH Ordering Information Model Name SKY13385-460LF SP3T Switch Manufacturing Part Number SKY13385-460LF Evaluation Board Part Number SKY13385-460LF-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. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201513B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 18, 2011 11