DATA SHEET SKY12211-478LF: 0.05 to 2.70 GHz 40 W High Power Silicon PIN Diode SPDT Switch Applications RFC Transmit/receive switching and RF path switching in TD- SCDMA, WiMAX, and LTE base stations Transmit/receive and RF path switching in land mobile radios, RF1 RF2 public safety radio, cable TV, and military communication systems RF2 BIAS RF1 BIAS Features Exposed Paddle S2673 High power handling: 40 W CW Low insertion loss: 0.3 dB typical Figure 1. SKY12211-478LF Block Diagram Controlled with positive power supply High isolation: 47 dB 1.2 GHz Description Fast RF rise time: 32 ns typical The SKY12211-478LF is a high power handling, Single-Pole, Bias driver circuit available on request Double-Throw (SPDT) silicon PIN diode switch with symmetrical Small, QFN (16-pin, 4 x 4 mm) Pb-free package (MSL1, 260 C switching paths from a single common port. The device operates per JEDEC J-STD-020) over the 0.05 GHz to 2.70 GHz band. It features low insertion loss, excellent power handling, and superb linearity with low DC power consumption. Skyworks Green products are compliant with all applicable legislation and are halogen-free. The SKY12211-478LF is well-suited for use as a high power For additional information, refer to Skyworks transmit/receive and RF path switch in a variety of Denition of Green, document number telecommunication systems such as WiMAX, TD-SCDMA, or LTE SQ04-0074. 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 201711E Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice January 27, 2014 1 DATA SHEET SKY12211-478LF 40 W PIN DIODE SPDT SWITCH 16 15 14 13 1 12 GND N/C RFC 2 11 RF1 BIAS 3 10 GND N/C N/C 4 9 RF2 BIAS 5 6 78 S2674 Figure 2. SKY12211-478LF Pinout 16-Pin QFN (Top View) Table 1. SKY12211-478LF Signal Descriptions Pin Name Description Pin Name Description 1 GND Ground. Must be connected to ground using 9 RF2 BIAS RF ground port 2 and DC bias port lowest possible impedance. 2 RFC RF port and DC bias port 10 N/C No connection 3 GND Ground. Must be connected to ground using 11 RF1 BIAS RF ground port 1 and DC bias port 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 RF1 RF port 1 and DC bias port lowest possible impedance. 7 RF2 RF port 2 and DC bias 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 SKY12211-478LF 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 SKY12211-478LF are SKY12211-478LF 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 11 Table 4. and 12. Equivalent circuit diagrams for transmit and receive are shown in Figure 13. Typical performance characteristics of the SKY12211-478LF are illustrated in Figures 3 through 10. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 January 27, 2014 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 201711E N/C N/C GND GND RF2 RF1 GND GND