SE2571U
2.4 GHz High Efficiency Wireless LAN/BT Front End
Preliminary
Applications
IEEE802.11b DSSS WLAN
IEEE802.11g,n OFDM WLAN
Embedded applications with Bluetooth (Mobile)
Product Description
The SE2571U is a complete 802.11 b/g/n WLAN RF
front-end module with a Bluetooth port. The device
provides all the functionality of the power amplifier,
power detector, filter, Switch, Low Noise Amplifier and
associated matching. The SE2571U provides a
complete 2.4 GHz WLAN RF solution from the output
of the transceiver to the antennas, and from the
antennas to the input of the transceiver, in an ultra
compact form factor.
The SE2571U is designed for ease of use, with all the
critical matching and harmonic filtering integrated,
also offering a simple 50
Ω
interface to the antenna.
The SE2571U includes a low noise amplifier to
increase the receive sensitivity of embedded solutions
to improve range or to overcome the insertion loss of
cellular filters often included for mobile applications.
The SE2571U also includes a transmitter power
detector with 20 dB of dynamic range and a digital
enable control for transmitter power ramp on/off
control. The power ramp rise/fall time is 0.5
μs
typical.
Features
Dual Mode IEEE802.11b & IEEE802.11g
Integrated PA, Harmonic Filter, LNA and BT port
Integrated Positive Slope Power Detector
20 dBm Output Power, 802.11b, 11 Mb/s, ACPR
<-30 dBc
19 dBm @ 4.0 % EVM, 802.11g, 54 Mb/s
Direct connection to battery with 3.3 V nominal
supply
Lead free, Halogen free and RoHS compliant
Compact package, 3 x 3 x 0.5 mm, MSL 1
Ordering Information
Part No.
SE2571U
SE2571U-R
SE2571U-EK1
Package
20 pin QFN
20 pin QFN
N/A
Remark
Samples
Tape and Reel
Evaluation kit
Functional Block Diagram
BT
4
VCC3
4
1
2
CBTR
RX
VCC1
VCC1
VCC2
ANT
3
1
2
CBTB
CRX
CTX
TX
3
DET
LEN
PEN
Figure 1: Functional Block Diagram
DST-00172
Rev 2.1
Sept-29-2009
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SE2571U
2.4 GHz High Efficiency Wireless LAN/BT Front End
Preliminary
http://www.sige.com
Email:
sales@sige.com
Customer Service Locations:
North America:
1050 Morrison Drive, Suite 100
Ottawa ON K2H 8K7 Canada
Phone: +1 613 820 9244
Fax: +1 613 820 4933
Hong Kong
Phone: +852 3428 7222
Fax: +852 3579 5450
San Diego
Phone: +1 858 668 3541 (ext. 226)
Fax: +1 858 668 3546
United Kingdom
Phone: +44 1279 464217
Fax: +44 1279 464201
Product Preview
The datasheet contains information from the product concept specification. SiGe Semiconductor, Inc. reserves the right to change
information at any time without notification.
Preliminary Information
The datasheet contains information from the design target specification. SiGe Semiconductor, Inc. reserves the right to change
information at any time without notification.
Production testing may not include testing of all parameters.
Information furnished is believed to be accurate and reliable and is provided on an “as is” basis. SiGe Semiconductor, Inc. assumes
no responsibility or liability for the direct or indirect consequences of use of such information nor for any infringement of patents or
other rights of third parties, which may result from its use. No license or indemnity is granted by implication or otherwise under any
patent or other intellectual property rights of SiGe Semiconductor, Inc. or third parties. Specifications mentioned in this publication
are subject to change without notice. This publication supersedes and replaces all information previously supplied. SiGe
Semiconductor, Inc. products are NOT authorized for use in implantation or life support applications or systems without express
written approval from SiGe Semiconductor, Inc.
Copyright 2009 SiGe Semiconductor, Inc.
All Rights Reserved
DST-00172
Rev 2.1
Sept-29-2009
14 of 14
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