DATA SHEET SKY13353-337LF: 0.5 3.0 GHz DPDT Diversity Switch Applications RF1 802.11 a/n diversity WLANs CTRL1 CTRL2 RF3 RF4 Features Broadband operation: 0.5 to 3.0 GHz CTRL4 CTRL3 Positive voltage operation: +1.8 to +5 V Low insertion loss: 0.7 dB typical 2.5 GHz RF2 S2146 High isolation: 22 dB typical 2.4 GHz Figure 1. SKY13353-337LF Block Diagram IP1dB: +32 dBm typical +3 V Small, QFN (12-pin, 3 x 3 mm) package (MSL1, 260 C per Description JEDEC J-STD-020) The SKY13353-337LF is a GaAs pHEMT Double-Pole, Double- Throw (DPDT) switch designed for 0.5 to 3.0 GHz diversity WLAN applications that use two antennas for both transmit and receive paths. The device provides high linearity, low insertion loss, and high isolation. Switching is controlled by four control voltage inputs (CTRL1, CTRL2, CTRL3, and CTRL4). Depending on the logic voltage level applied to the control pins, the four RF ports (RF1, RF2, RF3, and RF4) are connected together using a low insertion loss path, while maintaining a high isolation path to the alternate ports. Series DC blocking capacitors are required on all RF ports for proper operation. 12 11 10 The SKY13353-337LF is provided in a 3 x 3 mm, 12-pin Quad Flat No-Lead (QFN) package. A functional block diagram is shown in 1 9 CTRL1 CTRL2 Figure 1. The pin configuration and package are shown in 2 8 RF3 RF4 Figure 2. Signal pin assignments and functional pin descriptions 3 7 CTRL3 are provided in Table 1. CTRL4 45 6 S2145 Figure 2. SKY13353-337LF Pinout 12-Pin QFN (Top View) Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 201376A Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice October 12, 2010 1 N/C N/C RF2 RF1 N/C N/CDATA SHEET SKY13353-337LF DPDT DIVERSITY SWITCH Table 1. SKY13353-337LF Signal Descriptions Pin Name Description Pin Name Description 1 CTRL1 DC control voltage 1 7 CTRL3 DC control voltage 3 2 RF3 RF port 3. DC blocking capacitors required. 8 RF4 RF port 4. DC blocking capacitors required. 3 CTRL4 DC control voltage 4 9 CTRL2 DC control voltage 2 4 N/C No connection required. May be connected 10 N/C No connection required. May be connected to ground with no change in performance. to ground with no change in performance. 5 RF2 RF port 2. DC blocking capacitors required. 11 RF1 RF port 1. DC blocking capacitors required. 6 N/C No connection required. May be connected 12 N/C No connection required. May be connected to ground with no change in performance. to ground with no change in performance. Note: Exposed pad must be grounded through a low impedance path. Table 2. SKY13353-337LF Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Control voltage CTRL1, CTRL2, +6 V CTRL3, CTRL4 RF input power PIN +34 dBm Operating temperature TOP 40 +85 C Storage temperature TSTG 40 +125 C Note: 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. 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. Electrical and Mechanical Specifications The state of the SKY13353-337LF is determined by the logic provided in Table 4. The absolute maximum ratings of the SKY13353-337LF are provided in Table 2. Electrical specifications are provided in Typical performance characteristics are illustrated in Figures 3, 4, Table 3. and 5. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 October 12, 2010 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 201376A