SE2548A Datasheet, PDF (1/2 Pages) SiGe Semiconductor, Inc. – Dual Band 802.11a/b/g/n Wireless LAN Front End Preliminary Information

SE2548A
Dual Band 802.11a/b/g/n Wireless LAN Front End
Preliminary Information
Applications
ƒ IEEE802.11b DSSS WLAN
ƒ IEEE802.11g OFDM WLAN
ƒ IEEE802.11a OFDM WLAN
ƒ IEEE802.11n WLAN
ƒ Access Points, PCMCIA, PC cards
Features
ƒ All RF ports matched to 50 Ω
ƒ Integrated 2.4 GHz PA, 5 GHz PA, TX Filter, T/R
switches and diplexers
ƒ Integrated Power Detector for each TX Chain
ƒ 21 dBm O/P Power, 802.11b, 11 Mbits, ACPR =
35 dBc
ƒ 18 dBm @ 3.0 % EVM, 802.11g, 54 Mbits
ƒ 16.5 dBm @ 3.0 % EVM, 802.11a, 54 Mbits
ƒ Single supply voltage: 3.3 V ± 10 %
ƒ Lead free, Halogen free, RoHS compliant, MSL 3
ƒ 5mm x 5mm x 1.0mm, LGA Package
Ordering Information
Part No.
SE2548A
SE2548A-R
SE2548A-EK1
Package
32 pin LGA
32 pin LGA
N/A
Functional Block Diagram
Remark
Samples
Tape and Reel
Evaluation kit
Product Description
The SE2548A 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 SE2548A
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 SE2548A also includes a
transmitter power detector for each band and transmit
chain with 20 dB of dynamic range for each transmit
chain. Each transmit chain has a separate digital
enable control for transmitter power ramp 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 SE2548A packaged in 5mm x 5mm x 1.0mm,
Halogen free, Lead free, ROHS compliant, MSL 3
LGA package.
Figure 1: SE2548A Functional Block Diagram
DST-00092 ƒ Rev 1.8 ƒ Sep-14-2009
Confidential
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