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

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

 Controlled with positive power supply

 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)

Description

The SKY12215-478LF is a high-power handling, single-pole,

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.