DATA SHEET SKY12207-478LF: 0.9 to 4.0 GHz 50 W High Power Silicon PIN Diode SPDT Switch Applications ANT Transmit/receive switching and failsafe switching in TD-SCDMA, WiMAX, and LTE base stations Transmit/receive switching in land mobile radios and military communication systems TX RX Features High power handling: 50 W CW, 300 W peak Exposed RX BIAS Low insertion loss: 0.4 dB typical Paddle High antenna-to-receive isolation: 42 dB 2.6 GHz typical S2403 Controlled with positive power supply Bias driver circuit available on request Figure 1. SKY12207-478LF Block Diagram Small, QFN (16-pin, 4 x 4 mm) Pb-free package (MSL1, 260 C per JEDEC J-STD-020) Description The SKY12207-478LF is a high power handling, Single-Pole, Skyworks Green products are compliant with Double-Throw (SPDT) silicon PIN diode switch. The device all applicable legislation and are halogen-free. operates over the 900 MHz to 4 GHz band. It features low For additional information, refer to Skyworks insertion loss, excellent power handling, and superb linearity with Denition of Green, document number low DC power consumption. SQ04-0074. The SKY12207-478LF is well-suited for use as a high power transmit/receive switch in a variety of telecommunication systems such as WiMAX, TD-SCDMA, or LTE base stations. The device is provided in a 4 x 4 mm, 16-pin Quad Flat No-Lead (QFN) 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. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 201678D Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice January 24, 2014 1 DATA SHEET SKY12207-478LF: 50 W PIN DIODE SPDT SWITCH 16 15 14 13 1 12 GND N/C ANT 2 11 N/C 3 10 GND N/C 4 9 N/C RX BIAS 5 6 78 S2401 Figure 2. SKY12207-478LF Pinout 16-Pin QFN (Top View) Table 1. SKY12207-478LF Signal Descriptions Pin Name Description Pin Name Description 1 GND Ground. Must be connected to ground using 9 RX BIAS RF ground port and DC bias input port lowest possible impedance. 2 ANT Antenna RF port and DC bias input port 10 N/C No connection 3 GND Ground. Must be connected to ground using 11 N/C No connection lowest possible impedance. 4 N/C No connection 12 N/C No connection 5 N/C No connection 13 GND Ground. Must be connected to ground using lowest possible impedance. 6 GND Ground. Must be connected to ground using 14 TX Transmit RF input port and DC bias input lowest possible impedance. port 7 RX Receive output port and DC bias input port 15 GND Ground. Must be connected to ground using lowest possible impedance. 8 GND Ground. Must be connected to ground using 16 N/C No connection lowest possible impedance. The state of the SKY12207-478LF is determined by the logic Electrical and Mechanical Specifications provided in Table 6. Table 7 provides the logic for use with the The absolute maximum ratings of the SKY12207-478LF are SKY12207-478LF Evaluation Board. provided in Table 2. Recommended operating conditions are specified in Table 3 and electrical specifications are provided in Power derating data is plotted against temperature in Figures 10 Table 4. and 11. Equivalent circuit diagrams for transmit and receive are shown in Figure 12. Typical performance characteristics of the SKY12207-478LF are illustrated in Figures 3 through 9. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 January 24, 2014 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 201678D N/C N/C GND GND RX TX GND GND