DATA SHEET
SKY13418-485LF: 0.1-3.0 GHz SP8T Antenna Switch
Applications
? Any 2G/3G/4G antenna diversity or LTE (TDD/FDD)
transmit/receive system for which GSM transmit is not required
Features
? Broadband_frequency range: 0.1 to 3.0 GHz
? Low insertion loss: 0.65 dB typical @ 2.7 GHz
? High isolation: >20 dB @ 2.7 GHz
? Integrated logic
? Small QFN (14-pin， 2.0 x 2.0 mm) package (MSL1， 260 °C per
JEDEC J-STD-020)
Description
The SKY13418-485LF is a Single Pole， Eight-Throw (SP8T)
antenna switch. The high linearity performance and_low insertion Figure 1. SKY13418-485LF Block Diagram
loss achieved by the SKY13418-485LF make it an ideal choice for
main/diversity switching commonly used in LTE-based handsets， Switching is controlled by three CMOS/TTL-compatible control
data cards， and_tablets that use antenna diversity solutions. voltage inputs (V1， V2， and_V3). Depending on the logic voltage
The SKY13418-485LF is part of a scalable family of products that level applied to the control pins， the ANT pin is connected to one
covers SP4T through SP8T switches that allow up to eight bands of eight switched RF input/output (I/O) ports (RF1 to RF8) using a
of WCDMA/LTE. low insertion loss path， while the paths between the ANT pin and_
The symmetric port designs provide flexibility in signal routing for the other RF pins are in a high isolation state. No external blocking
both receive diversity and_higher power TD-SCDMA/TDD-LTE， capacitors are required on the RF paths.
WCDMA/FDD， and_LTE transmit/receive applications. The SKY13418-485LF is manufactured in a compact， 14-pin 2.0 x
2.0 mm， 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
201712B ? Skyworks Proprietary Information ? Products and_Product Information are Subject to Change Without Notice ? February 24， 2012 1
DATA SHEET ? SKY13418-485LF SP8T ANTENNA SWITCH
Figure 2. SKY13418-485LF Pinout – 14-Pin QFN
