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DATA SHEET
SKY13353-337LF: 0.5 – 3.0 GHz DPDT Diversity Switch
Applications
? 802.11 a/n diversity WLANs
C TRL1
RF1
C TRL2
Features
? 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
RF3
C TRL4
RF2
RF4
C TRL3
S2146
? 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)
Figure 1. SKY13353-337LF Block Diagram
Description
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
12
11
10
for proper operation.
The SKY13353-337LF is provided in a 3 x 3 mm, 12-pin Quad Flat
C TRL1
1
9
C TRL2
No-Lead (QFN) package. A functional block diagram is shown in
RF3 2
C TRL4 3
4
5
6
8
7
RF4
C TRL3
Figure 1. The pin configuration and package are shown in
Figure 2. Signal pin assignments and functional pin descriptions
are provided in Table 1.
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
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