DATA SHEET SKY12215-478LF: 0.9 to 4.0 GHz, 125 W High-Power Silicon PIN Diode SPDT Switch TX Applications 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 ANT Features High-power handling: 125 W CW Low insertion loss: 0.4 dB typical High antenna to receive isolation: 43 dB 2.6 GHz typical Exposed Paddle Controlled with positive power supply RX BIAS Ground Bias driver circuit available on request Small, QFN (16-pin, 4 x 4 mm) Pb-free package (MSL1, 260 C per JEDEC J-STD-020) Y0099 RX Figure 1. SKY12215-478LF Block Diagram Skyworks Green products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Description Denition of Green, document number The SKY12215-478LF is a high-power handling, single-pole, SQ04-0074. double-throw (SPDT) silicon PIN diode switch. The device operates over the 900 MHz to 4 GHz band. It features low insertion loss, excellent power handling, and superb linearity with low DC power consumption. The SKY12215-478LF 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 202975C Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 14, 2014 1 DATA SHEET SKY12215-478LF: 125 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. SKY12215-478LF Pinout 16-Pin QFN (Top View) Table 1. SKY12215-478LF Signal Descriptions Pin Name Description Pin Name Description Ground on the Evaluation Board. May be N/C 1 GND 9 RX BIAS RF ground port and DC bias input port. or GND. 2 ANT Antenna RF port and DC bias input port. 10 N/C No connection on the Evaluation Board. May be GND or N/C. 3 GND Ground on the Evaluation Board. May be N/C 11 N/C No connection on the Evaluation Board. May or GND. be GND or N/C. 4 N/C No connection on the Evaluation Board. May 12 N/C No connection on the Evaluation Board. May be GND or N/C. be GND or N/C. 5 N/C No connection on the Evaluation Board. May 13 GND Ground on the Evaluation Board. May be N/C be GND or N/C. or GND. 6 GND Ground on the Evaluation Board. May be N/C 14 TX Transmit RF input port and DC bias input or GND. port. 7 RX Receive output port and DC bias input port. 15 GND Ground on the Evaluation Board. May be N/C or GND. 8 GND Ground on the Evaluation Board. May be N/C 16 N/C No connection on the Evaluation Board. May or GND. be GND or N/C. Note: Center paddle must be grounded. See Figure 13 for recommended via pattern. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 August 14, 2014 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 202975C N/C N/C GND GND RX TX GND GND