DATA SHEET
SE5503A:Dual Band 802.11a/b/g/n Wireless LAN Front-End
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202452B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 30, 2012 1
Applications
IEEE802.11b DSSS WLAN
IEEE802.11g OFDM WLAN
IEEE802.11a OFDM WLAN
IEEE802.11n WLAN
Access Points, PCMCIA, PC cards
Features
All RF ports matched to 50 Ω
Integrated 2.4 GHz PA, 5 GHz PA, TX Filter, T/R
switches and diplexers
Integrated Power Detector for each TX Chain
21 dBm O/P Power, 802.11b, 11 Mbits, ACPR =
35 dBc
18 dBm @ 3.0 % EVM, 802.11g, 54 Mbits
16 dBm @ 3.0 % EVM, 802.11a, 54 Mbits
Single supply voltage: 3.3 V ± 10 %
Lead free, Halogen free, RoHS compliant, MSL 3
4mm x 4mm x 1.0mm, LGA Package
Ordering Information
Part No. Package Remark
Product Description
The SE5503A is a complete 802.11a/b/g/n WLAN RF
front-end module providing all the functionality of the
power amplifiers, filtering, power detector, T/R switch,
diplexers and associated matching. The SE5503A
provides a complete 2.4 GHz and 5 GHz WLAN RF
solution from the output of the transceiver to the
antenna in an ultra compact form factor.
Designed for ease of use, all RF ports are matched to
50 Ω to simplify PCB layout and the interface to the
transceiver RFIC. The SE5503A also includes a
transmitter power detector with 20 dB of dynamic
range for each transmit chain. Each power amplifier
has a separate digital enable control for transmitter
on/off control. The power ramp rise/fall time is less
than 0.7 μsec.
The device also provides a notch filter from 3.260-
3.267 GHz and 3.28-3.89 GHz prior to the input of
each 2.4 GHz and 5 GHz power amplifiers,
respectively.
The SE5503A packaged in 4mm x 4mm x 1.0mm,
Halogen free, Lead free, ROHS compliant, MSL 3
LGA package.
Functional Block Diagram
