DPDT Switches For 802.11 a, b, g, n Applications

Skyworks Solutions, Inc. has introduced two double-pole, double-throw diversity switches for 802.11a, b, g, n applications such as routers and access points. The SKY13352-337LF is ideal for high band applications, while the SKY13353-337LF is for low band. These new switches deliver antenna diversity and offer pin-for-pin compatibility, making them ideal for WLAN infrastructure providers.

4.5–6.0 GHz DPDT Diversity Switch: SKY13352-337LF

The SKY13352-337LF is a GaAs pHEMT Double-Pole, Double-Throw (DPDT) switch designed for 4.5 to 6.0 GHz diversity WLAN applications that use two antennas for both transmit and receive paths. This switch provides high linearity, low insertion loss, and high isolation. Switching is controlled by four control voltage inputs (V1, V2, V3, and V4). Depending on the logic voltage level applied to the control pins, the four RF ports (J1, J2, J3, and J4) are connected together using a low insertion loss path, while maintaining a high isolation path to the alternate ports. All of the necessary DC blocking capacitors are integrated on die for all RF ports, which eliminates the need to add external blocking capacitors. The SKY13352-337LF DPDT switch is provided in a 3 x 3 mm, 12-pin Quad Flat No-Lead (QFN) package.

• Broadband operation: 4.5 to 6.0 GHz
• Positive voltage operation: +1.8 to +5 V
• DC blocking capacitors integrated on RF paths of device
• Low insertion loss: 1.3 dB typical @ 5.8 GHz
• High isolation: 25 dB typical @ 5.8 GHz
• IP1dB: +31 dBm typical @ +3 V
• Small, QFN (12-pin, 3 x 3 mm) package (MSL1, 260 °C per JEDEC J-STD-020)

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•Datasheet: 4.5–6.0 GHz DPDT Diversity Switch: SKY13352-337LF

0.5 – 3.0 GHz DPDT Diversity Switch: SKY13353-337LF

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. The SKY13353-337LF is provided in a 3 x 3 mm, 12-pin Quad Flat No-Lead (QFN) package.

• Broadband operation: 0.5 to 3.0 GHz
• Positive voltage operation: +1.8 to +5 V
• Low insertion loss: 0.7 dB typical @ 2.5 GHz
• High isolation: 22 dB typical @ 2.4 GHz
• IP1dB: +32 dBm typical @ +3 V
• Small, QFN (12-pin, 3 x 3 mm) package (MSL1, 260 ?C per JEDEC J-STD-020)

Click Here To Download:
•Datasheet: 0.5–3.0 GHz DPDT Diversity Switch: SKY13353-337LF